I've been looking into Honda Pilot transmissions trying to diagnose a problem with mine. This is video is by far the most outstanding in explaining their operation! Well done, and Thank you!
I read that Honda developed an automatic transmission with standard helical gearsets back in the 1960s in order to circumvent patents from Chrysler and BorgWarner on automatic planetary gear transmissions. They were also the first to develop a clutch pressure control system using a reaction arm on the torque converter. Honda also had a manual transmission which was hydraulically shifted in the first Civic.
Excellent video. I have a 2005 MDX MDKA 5spd Transmission (212,000 miles) with a slipping Sprag (1st Hold Clutch). Known problem for loosing forward power after a stop. I overhauled the transmission (170,000 mile) but did not change the Sprag, it seemed ok on my bench test. Now I regret not changing while I had it apart. Honda does not sell the Sprag alone, but the whole assembly ($300). I wish someone whispered that secret back in time.
This is very interesting! Honestly almost seems easier than a typical planetary set. All the gears are there to look at. But, no double duty so physically taking up more room. Well done sir!
Absolutely the most comprehensive explanation of that type of transmission on the internet. Even though you're not dynamic in explaining, you are a master of keeping my interest. Not only did you earn another subscriber, you definitely gained an admirer of your knowledge and way of sharing it. I can't say enough about how much I enjoyed every second of your video. Bravo Mr. Weber Auto, Bravo!!!😎☝👍
Fantastic video. There is another UA-cam channel called Automatic Transmission which shows how to disassemble and another video on rebuilding the transmission. This video explains why and how which I really love.
Thank you for making this very informative video. I also like the solenoids being mounted externally. I have been chasing transmission problems in my bro-in-laws 2000 Accord and cleaned the solenoid screens in an attempt to "fix" his transmission. I now understand they must have been clogged with friction material and the transmission is on it's last leg. Thanks to your video I do admire the design. I just wish the friction material was tougher.
Thanks so much for taking all the time you have to make this video. I live in the UK and have a USDM Civic and the transmission is fine for the moment but this information is very handy because if anything went wrong i don't think anyone would understand it. I have to change the timing belt myself because I don't trust mechanics to understand that the engine is running in reverse (D16) either.
Great breakdown of the Honda AT5 - really helped me understand why a Honda automatic would be sensitive to heat or ATF problems. The clutch packs seem identical to motorcycle wet clutches (interleaved steel and friction plates). They even look similarly sized! I just replaced an AT5 in my Ridgeline with a low-mileage used unit (my 3rd clutch is gone - after many miles and a fair amount of abuse). Unfortunately, the replacement transmission seems to have no reverse. Forward gears work, but zero response from reverse. In studying the factory manual (and watching this vid), the only cause I could see for reverse not working is mechanical (reverse fork not moving the gears). Is there any electronic reason for reverse to not work (I don't see any solenoids associated w/reverse, doesn't seem computer-controlled)? Thanks!
Thank you! Reverse requires all four shift solenoids and their associated hydraulic passages to be working properly. The 5th clutch, 5th accumulator and reverse servo are all involved. If you get 1st through 5th gears, the solenoids are working and you probably have a reverse servo or linkage issue. Best wishes.
Thank you so much for the quick reply...I was not looking forward to potentially swapping the trans again. If a solenoid was not functioning, would you expect the trans to throw a code (we have a code reader which can pull trans codes and monitor at runtime).
The purpose of the shift fork? Thanks for the video; my 2008 Honda Odyssey transmission … when I shift to neutral, there’s a grinding sound and then the engine wants to die; also, when shifted into park, the van will still roll. So this video helps out a lot.
This transmission has had a lot of issues over the years in its V6 application. The 6sp replacement seems to be a lot better. Honda's new 10sp is their first planetary auto.
Not true. These transmissions regularly last 200K miles if maintained properly. More importantly, these units shift very efficiently and don't gear hunt. The new 6 speeds lock up the torque converter in much lower gears and have a dead pedal feel. The AT5 is far superior to the AT6 from a driveability standpoint.
@@scottn7694 I second that. I have a civic(2012 w/ 1.8) that survived not being serviced for over 60k miles and, still drove great with mystery very dark atf (didn't even smell like atf anymore)
Thanks for the AT5 training video. Very good. I have the AT6 behind a J35Y1 and it is brilliant. I also have a 1997 VTI-R H22A4 with a 4AT Sport Shift. I believe these are vulnerable and fail often. Possibly due to poor OEM parts, or so I am reading, such as clutch Fibre, and solenoids clogging, etc. Even with schedule service. Would you have any experience you could share on this box? Thanks.
Hi Mr. Weberauto, you said the reason the 3rd clutch pack wore out prematurely is because the return spring is crooked making the Piston crooked causing uneven apply to the clutch discs. My transaxle is doing this and this is a common failure of this transaxle. How can we fix it? My thought is the spring must be redesigned so the top and bottom is flat but who would even be able to do that? A machine shop? Maybe a welder can weld supports on the spring top and bottom so it sits flat?
@@WeberAuto thank you Mr. Weberauto. I have pulled out the transmission and will be checking the parts soon to see if it has the same abnormal wear on it and I'll see if the parts being sold are the new design. Thank you again
Very interesting to learn about all the sensors on this transmission, I was wondering about the shifting logic because if the ecu detects no vehicle movement and throttle past a certain %, it will upshift from 1st to 2nd even if 1 is manually selected, I've found this very frustrating when launching and going up steep hills.
I like how you said unique when this transmission fall just need new fluid I own a 2005 the former owner was tired of this van I just change engene oil and transmission fluid 02 sensors and I have a family van the best video about this van what I seen
I don't know much about it, but I'd like to ask. I want to buy a civic 1.8 (5 speed at). Is this gearbox reliable? or if something goes wrong, is it easy to replace?
Thank you for your sharing, Professor Kelly. I wish that I can learn from you. I'm a Hyundai motor mechanic in Australia and I overhaul most of Hyundai auto transmission. I'm just following the shop manual but I still can't understand all the components in the gear box. I just want to know that can you tell it's the valve body issue or gear box internal problems with the oil pressure test when you have erratic gear shifting issue? I can tell the problems with the oil pressure test if one of any gears won't engage at all, but It's hard whenever I have an erratic shift issue unless I dissemble all the internal gear box components. I can't pull the gear box out if it's just valve body issue due to warranty issue. Also why is the erratic gear shifting(for example delay, shock and jerking) occurring when the valve body has problems? lastly what components in the A/T transmission make the vehicle vibrate? I know the damper clutch is the main cause but can the clutch or brake of the gear box make the vehicle vibrate? thank you again,
I had a 2000 accord with a 4 speed. It shifted soooo slowly. Kind of wish it had the shift quality of the 94-97 where it was much more crisp. After I rebuilt it the first time I did fluid changes every 12k miles to try and keep that filter clean
My guess as to why you found the 3rd clutch piston crooked is excessive piston travel due to the wear of the clutches/steels. The design of the spring caused the piston to not return to the bore squarely.
I own an XC90, 2004, which has the Aisin 5-speed geartronic. How similar is this to the Honda Aisin AT5? When I drive the XC90, it gives me the feel of 'extra gears' between 2 and 3, 3 and 4, 4th and 5th gear. Can you explain what is happening here? Thanks!
So all and all is it a reliable transmission, I have a 2013 after it hit 50,000 miles I changed the oil ran it for a week change the oil again ran it for a week change the oil again this way I can get all the oil out of the converter which you really don’t you get about 80%, then When it hit 90,000 miles I just dropped 3 quarts and added and they say to do it every 50,000 but I do it every 20 it’s too simple not to. I don’t beat the car at all I’m 60 years old I’m trying to figure out by taking care of this vehicle what the longevity should be, I live on Long Island which is a mixed driving highway and around town but it’s not city driving like Manhattan that’s for sure anyway any positive input on my transmission would make me sleep better . thank you
This has been the single best video to teach me about my transmission: B97A in a 2008 Accord V6. Super grateful for that; I will be replacing some solenoids on mine soon. One question: how does this get lubricated? Are there oil jets, or is everything oiled from the long feed tubes that go into the shafts and clutch packs?
Really educational videos on this channel, with lots of in depth details. I film auto stuff on a channel and it helped me understand perfectly how the toyota HSD system works
Very good information, well explained and easy to follow. You pointed out that spring for 3rd gear clutch, how it forces the pressures unevenly, makes sense. I would add, the spring could have been made better, allowing evenly applied pressure, on top the fact that shaft has more work to do connecting the other two shafts together, probably adds to the premature failure of that clutch... and they could have made the clutches larger in diameter for better hold?
Thank you for the video, very informative and very detailed. I do have a question though. I have an 04 Acura TSX. Is there any way to modify the transmission to handle let's say more than 300hp? Like the old American transmissions for example the THM 350, 400, 200R4, 700R4, and 4L60E all have shift kits from various companies like B&M that add extra clutches to the clutch packs to be able to handle more power. Is there anything similar for this transmission or can you just add extra clutches to the clutch packs in the honda transmission?
Hello and greeting from Romania. Interesting video about Hondas transmission. I want to buy an Honda Accord 4 cylinders with an automatic transmission (2005 2007 7 gen european model) and i was wondering if it s a safe bet . it is a reliable transmission (as long as it is mantained) or i am better with a manual one?You said i had some revisions over the years so i hope that from 2005 onwards it got some. i had so far only manual trannys but i like the automatic ones because i drove one and it s more relaxing. Thank you verry much for your videos.
Hello, the 2005 models had some transmission problems. I suspect most of the have been fixed by now, but there is a possibility that you could have trouble. Best wishes!
Hello Sir Question: 2009 Honda MDX 66174 FAULTY TRANSMISSION 3RD CLUTCH FLUID PRESSURE SWITCH- P0847 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch “B” Circuit Low Before this issue above there was a software update applied for a shuttering torque converter...few years later the DTC-P0847 issue diagnosed to be the switch being as the issue and replaced but my question is - Do you think there is internal damage that occurred internally over the course of these issues due to this switch failing and and the seemingly simple fix/issue being the software update/switch itself? Im concerned about gradual issues with the transmission and longevity. Looking to purchase this vehicle and has currently 130K...
Excellent video, I appreciate your in depth explanations. I have a 2011 Odyssey with a 5 speed transaxle. When I let off the gas there is a surge or jolt felt when the transmission is downshifting. It seems to do it regardless of what gear it is coming out of. What would you say is the reason for this? I am thinking it is solenoid related, but not sure which ones or if it is all of them, or perhaps a filter problem.
@@rickybobby8563 it’s an 03 odyssey, which is nearly identical to any 3 shaft 5 speed on a 6 cyl Honda/Acura. I’m not sure about the 4 cyl models however
This seems to be the same concept as was used by GM/Saturn in their TAAT 4 speed automatic transaxle of the Saturn S series. They have an input shaft and a counter rotating shaft geared to the final drive differential and a hydraulically operated slide gear for reverse.
Thanks for the video. I couldn't see the gear sizes but I assume effectively each pack has the same torque on it? The small diameter of each pack and no load sharing between packs must contribute to the failure rate of these in the heavier vehicles? The original Hondamatic only had two (manually shifted) gears and reverse. Internally it was very similar. It's as if they just kept adding to the original design.
Thanks for the feedback! Each clutch pack will have a different torque on it. The compensate for that difference with different numbers of clutch plates in each pack.
On the Honda at-5 you say the primary first gear does not use a hydraulic clutch but rather a sprag. That the clutch on that gear only engages in manual 1 for engine braking. If any time the secondary shaft turns in the forward direction the sprag bites, then what on earth disengages in park and neutral to stop the transmission of power through that sprag?
I have this transmission in my Honda Accord with only 20k miles. Intermittently, the car shifts very rough and abruptly. It is worse when it's cold; it almost always shifts hard when it's cold. Today when I was driving down the highway, it held on to 4th gear for almost 20 seconds before shifting into 5th. What could be causing this? Could a TCM reset help solve this? Are there any solenoids or sensors that are prone to failure, especially in a vehicle that sat for a long time I already replaced the fluid with Honda approved ATF to ensure old fluid was not causing any issues.
Very helpful and so accurate explanations of transaxle, i would like to say thank you for your time and effort to explain this functions, very hard to find like you specialist who is really good on his job thanks a lot. I have a Kia Spectra 2004 model and its total milage is 87007km, Auto Transmission. When im going to work in the morning i On the Car and i warm it up for 5min and put on Drive mode(D) its stays no respond, does not moves, once i push a gas pedal to increase an rpm to 1.7-1.8*1000rpm, than it will engage and will jerk lil bit, after at traffic light i put to parking(P) and shift to the drive(D) it would engage smoothly and seams nothing wrong would be fine but later on i park the car for 5 hours and start the car and shit to D it would appear the same what it could be i tried to go several workshops they use to tell different things all and im confuse to who beleave if u would not mind to help i would appreciate thanks.
Thank you, it sounds like the fluid in your torque converter is draining out when you park for 5 hours or more. The fluid should stay in the torque converter and is held there by a special valve in the transmission typically called a "converter drain back valve". I do not know what Kia calls it, but I suspect it is leaking. How to fix it? probably replace the valve body or the entire transaxle. Best wishes.
Hi Prof, Greetings from Singapore. I have a Honda Accord CL7 5AT (Acura TSX) and I love it. I would like to say that this is by far the most detailed and most educational video on the Honda 5AT. It is both inspirational and fascinating to observe the complexity. The level of insight you provide is priceless. By the way, I have always known that Honda's auto tranny isn't planetary-gear based - broadly speaking - is there an inherent advantage to Honda's design? And if it's so good - why don't others adopt the same? Likewise, could you share with us about the inherent weaknesses? Aside from this - could you tell us more about what influences the engine braking effect in an automatic transmission? It seems like my Accord has particular strong engine braking which I like alot and do not observe in other cars with planetary-based gearboxes. Thank you so much.
Honda's design is their design. They do no have to pay patent royalties to use planetary designs. Their design is good, but different. Engine braking is a function of gear ratio and torque converter slip rate control. Some transmissions also use a one-way sprag or roller clutch that free spins when decelerating (no engine braking unless you select a lower gear range).
The video is very helpful as a reference material. whether the Japanese version of the Honda Odyssey 2006 atf transmission is also like this..?? Thanks
Great video,I lot education,I have a question,on a 5 speed BDKA Acura MDX ,I got a guy to do and overhauling to rebuild the clutches 1 ,clutch was burn, he took it a part in set for one month, a part , ended put it back together, I end up with a 1 1/2 pipe extra , them I look over and over in the computer where that pipe go ,I can't find anywhere the location where that's pipe go, in the tranny I ended installed back the tranny in the SUV , but will not engage,1,2,3,4,5, in can go reverse but not forward, ,,??? Can you please give me some advice , I will really appreciate, thank you,
Its worth having a look at New Holland [or Case] tractor transmissions for a more sophisticated version of this type of transmission. Specifically the NH Range and Power Command transmissions which have a six speed powershift [with auto or manual change as the driver decides] similar in design to the Honda [on a larger scale]. On top of which there is a range box giving three ranges and reverse speeds equal to the second range. The range shifts are robotised synchromesh, as is the forward-reverse shuttle, which require a disconnect of drive while they shift. The robotised synchro changes are similar in operation, though not is design, to that of dual clutch car transmissions such as the VW DSG or the Ford Powershift.
I have a question about what holds the transmission in park is it a gear or a pin my 2014 honda crv won't hold its self in park. How can I fix it. You are the man I need to ask because ya do a great job explaining how that transmission works
Good afternoon any help will be appreciated I got a 04 honda odyssey when shift to reverse it makes a grinding noise but sometimes it does work intermittent but shifts fine in drive any ideas thank you for your time
Reverse is engaged with a shift fork, like a manual transmission. The shift fork is hydraulically activated by the valve body. Make sure your fluid level is correct, check for trouble codes. If the fluid is correct, there is probably an internal problem with the transmission. Best wishes.
Buenos dias , gran video !!! Poseo un Honda Accord diesel 2.2 automático de 2013 en España, la caja se parece a esta creo, tengo varias dudas. Que Atf seria mejor el Honda original DW1ó por ejemplo el Red Line D6 Atf DW1 que usted supongo conocerá ???? También me llama la atención la caja de mi coche no tiene filtro exteriór , por lo que no puedo cambiarlo, sería bueno y posible ponerle uno en el circuito de refrigeración?? Gracias por su respuesta . un seguidor desde ESPAÑA
@@WeberAuto El que vende Honda DW1original quiere decir ó que también vale el Red LIne D6 Atf DW1 !!?? despues de ver sus comentarios me surge esa duda de si recomendado es de confiar ??? O solo es usable el que vende la HONDA Gracias por su respuesta Son grandes sus videos, muy visuales !!
Despues de tiempo vuelvo á ver el video, como ya dije tengo esa caja de cambios. Y si la pregunta era esa si el Red Line es de confiar y tan perfecto para la caja como el honda DW1. Otra curiosidad le comento es que no trae ningún filtro exterior que se pueda cambiar como mantenimiento y eso me sorprende y preocupa ya que va por los 350.000 km que me parecen muchos . Cuantos km creé usted podra durar esta caja ????? Por ayudar á que aguante mas km le hice varios cambios de ATF seguidos para que se renovara todo el aceite (teniendo en cuenta nunca sale todo) . Por ahora el coche va perfecto , es fabricado en 2013 asi que tendra todas las actualizaciones . Un saludo
I thought this was called the H5 series. Never heard of AT5. Is it the same thing? Either way, awesome video. Would be nice to see the variants side-by-side.
Thanks. Honda training literature and web-based training calls it the AT5. Where are you seeing anything different? I have never seen an official publication from Honda with model names. I probably missed something.
@@Npc5150 hes right its not easy finding a "AT5" online. you didnt say specifically what "AT5" it was or out of. thats like says its a single cam and not saying which one when there are so many versions.
I have a slight whining noise upon deceleration when a let off gas from 35mph down to about 10mph. Same noise even when i put it in neutral in that same scenario. It's a 2006 Acura TSX auto. Please what could be the problem?
Hi..., how can you tell slipping Symptoms? Reason being I just got mine redone. But it tries to keep going with a small jolt. When I apply the brakes slowly. Or when I press the accelerator slowly and ease off. The rebuilder keeps saying mine is fine. Plus I hear a very large click sometimes. When I put it in reverse also. The motor mounts and tranny mount are all new...thxs
This his guy is awesome. Thank you so much for this information .I have questions on adjustment of the linear Solinoids for honda transmissions .If you ever have the time I would love to see what you would have to say and demonstrate. Thanks
I have bought 3 1997 Honda Accords, all with automatic transmission problems. I took them apart and the clutch plates were bad in all of them. So I replaced them with a seal kit and a rebuilt converter, and now I have been drive one with no problems for around 3 years. I guess they had poor clutch plates and the new clutch plates I got were updated to replace the old clutch plates,,,,,,,,,
I just rebuilt my 2006 Honda Odyssey. It was overheated. I changed all the seals and clutch pads. There are some issues with the transmission that I can’t figure out. Trouble code P0757 P0776. Start Low RPM have no D gear. The solenoid have been tested and working properly.
Hi ,Honda it used Z1 transmission fluid before 2011 and it was switched to Dw1 later and it is thinner than the Z1 , i have accord 2014 4-cylinder k24w2 engine the Middle East version comes 5-speed transmission What is the fluid for this transmission Use under high temperatures in the Middle East, Like honda z1 , amsoil fluid atf Multi-Vehicle or Fuel-Efficient fluid like dw1 thank you sir
Thanks for the video! You mentioned that Honda, other than the others, puts the solenoids directly on the transmission case. Is there an explanation for it? I can imagine that the cost could have been reduced with all the components arranged on one center unit. Can it be that this 5-speed-AT is based on a manual transmission so that the solenoid is built as an add-on solution? I'm looking forward to you next video.
***** I have no explanation for the external solenoids. You make an interesting point regarding an add-on solution to a manual transmission. Their 4, 5, and 6 speed transmissions all have external solenoids. It is certainly easier to service, with external solenoids. Thank you for watching.
I have a cuestion i hope you can help me.i have 2002 acura mdx 5speed automatic bgha .can i instale a bvha 4 speed trasmission from honda pilot, to my acura mdx ???????.the trasmission case is same same¡
quick question too, if you put a normal auto into neutral you can rev the engine as much as you like and the vehicle remains stationary. In the Honda auto there is a rev limiter for neutral but if you defeat the limiter by putting the trans in N whilst moving the neutral gear actually provides forward motion at high rpm. how come?
Professor, Hi I hope everything is ok!, as we all know Honda has a very unique history with transmission specifically with Automatic 5 speed Transaxle. During my research I end with the transaxle models B7WA and M7WA, what is the difference between these two? Regards,
I know there have been several changes to those 5 speed transmissions, but the biggest problem I have is determining the model number of teach transmission. I have never been able to figure that out. Where are you coming up with the B7WA and M7WA designations. I have never seen anything about that in Honda's own service information, but maybe I have missed it. Thank you!
Hello Sir, What is the name of Honda Civic uses trassmission inside the Civic for FD6, FB7 and FC5 models ? Can it be AISIN and/or ? FC5 uses CVT but what trade name of company ie AISIN again ?
I have a 2010 acura MDX. I dont have any transmission issues or slipping my second gear does shift sort of hard. It has a heavier shift shock relative to the other gears. Is this a bad sign? I was told that honda transmission 2nd gear does shift harder then the others.
Good question. I have not heard of that. Yuo might check with the Acura dealership to see of there is a flash update for the computer which controls the transmission. Besy wishes!
consider servicing the ATF fluid and filter then do a TCM Reset so it relearns proper shift points and pressures with fresh fluids. Most ppl will tell you "this is normal..." until you need a $50000 rebuild and that is normal course too! Transmission die of high heat from failed/abused clutches that contaminate valves and plug filters. So drive your tranny gently with a light foot to minimize clutch wear AND service fluid for proper viscosity. Ultimately tranny fail because skinny clutches are the weak points. Similarly this is like disc brakes.... even gentle driving can not prevent replacement only extend life. 👍
hi there! Would you know what has changed in the 5AT transmission since 2003? I have 5AT transmission in my Civic Tourer 2016 model, here in UK. Just wondered if there were any significant changes \ improvements. Many thanks!
I don’t know what they did but they sure did figure out the transmission. There was nothing but problems in these transmissions around years 2003 to 2006, especially in the v6 models. Now they don’t really seem to have problems but just do a drain and refill every 40k miles to keep the fluid clean. These transmissions hate dirty burnt fluid.
@@robbym3542 cheers for the advice! My transmission is filled with their new fluid DW1 which is supposed to be fully synthetic. However I will most likely do a drain/fill at 40k or earlier!
As with all automatic transmissions, there have been many changes and improvements over the years. You would have to find all the service bulletins to determine the changes
Unfortunately no, the gears are not interchangeable with the manual. Where a manual gear would have a synchro, the automatic have an extended part of the gear that's engaged with the clutch pack. It may be possible to take the gears from a 6 speed, which has lower ratios, but I doubt it's possible.
@@Draftsman_MC1300 ahh I didn't realize that was what you meant. Well then yeah, I'd totally possible as long as you can find a company to do it for you (or learn to do it yourself, but the tools would cost a lot of money).
Five speed honda automatics are notorious for third gear failure. Worked on hundreds, always the same thing. But on a good note they can go 200,0000 miles if properly maintained.
So the clutch packs definitely need to be replaced 100%. But I can't open the transmission myself, and if I want to pay for a transmission rebuild, it costs $3000? This is kind of amazing
@@themodfather9382 According to what? Local car ads here. 2.2 diesel 5 speed autos have over 500k km on some. Older audis have 500-800k on clock. Nobody never opened those boxes.
@@mulvahetpolemidasateedThis is nice to hear that if they services properly they are good for 500k km. I am just about to replace my Civic Tourer 1.8 manual for a 3 Gen. CR-V 2.0 automatic
Mine is a 2013 CRV with the five speed I would imagine it’s the transmission you’re showing me here, I’ve change the oil every 30,000 miles, right now it has 101,000 the second time I changed it I did the fill and dump so I pretty much flushed it out. I’m very conservative when I drive I am 60 years old, what I’m getting out here is with real good maintenance and treated properly what’s the furthest you’ve seen one of these transmissions run
@@samsmith3025 But you can use the first gear pack as a main clutch can't you? And in stop disengage all of them and in first gear slowly increasing the pressure so the car will start like a manual.
@@NathanAlpern I think turbine in the torque converter provides the hydraulic pressure. It's weird why they would design it like this though. I don't understand.
@@jerryp2433 there is a dedicated pump in the valve body that provides the hydraulic pressure. They don't need a torque converter. They technically didn't need a main clutch at all. They technically could've just used the clutches attached to the gears, but they didn't design it like that.
@@yummyhershey5902 I thought the whole reason why Honda developed a manual automatic type tranny was to avoid power losses associated with torque converters.
I have a power vibration from 1500-1900 on first and, second that happens when changing gears and, is very present at 1800 rpm. Otherwise works great. This is a civic 1.8 2012 at5 thanks.
Cannot thank you enough for this straightforward explanation of how a Honda 5-speed automatic transmission works.
I've been looking into Honda Pilot transmissions trying to diagnose a problem with mine. This is video is by far the most outstanding in explaining their operation! Well done, and Thank you!
This amazes me as an engineering student because this is what I want to do after graduation. Thank for very thorough explanations. Love your videos.
DRIFTWORKXX Thank you!
I read that Honda developed an automatic transmission with standard helical gearsets back in the 1960s in order to circumvent patents from Chrysler and BorgWarner on automatic planetary gear transmissions. They were also the first to develop a clutch pressure control system using a reaction arm on the torque converter. Honda also had a manual transmission which was hydraulically shifted in the first Civic.
+douro20 Great information, thanks for the feedback! They still use the reaction arm today.
Excellent video. I have a 2005 MDX MDKA 5spd Transmission (212,000 miles) with a slipping Sprag (1st Hold Clutch). Known problem for loosing forward power after a stop. I overhauled the transmission (170,000 mile) but did not change the Sprag, it seemed ok on my bench test. Now I regret not changing while I had it apart. Honda does not sell the Sprag alone, but the whole assembly ($300). I wish someone whispered that secret back in time.
Excellent video, clearly explains the Honda AT5 operation far better than the factory shop manual. Thanks for creating and posting!
Thank you!
This is very interesting! Honestly almost seems easier than a typical planetary set. All the gears are there to look at. But, no double duty so physically taking up more room.
Well done sir!
Absolutely the most comprehensive explanation of that type of transmission on the internet. Even though you're not dynamic in explaining, you are a master of keeping my interest. Not only did you earn another subscriber, you definitely gained an admirer of your knowledge and way of sharing it. I can't say enough about how much I enjoyed every second of your video. Bravo Mr. Weber Auto, Bravo!!!😎☝👍
Fantastic video. There is another UA-cam channel called Automatic Transmission which shows how to disassemble and another video on rebuilding the transmission. This video explains why and how which I really love.
Thank you for making this very informative video. I also like the solenoids being mounted externally. I have been chasing transmission problems in my bro-in-laws 2000 Accord and cleaned the solenoid screens in an attempt to "fix" his transmission. I now understand they must have been clogged with friction material and the transmission is on it's last leg. Thanks to your video I do admire the design. I just wish the friction material was tougher.
Thank you!
"I don't work on Honda automatic transmissions very often" - this sounds like a good thing
Thanks so much for taking all the time you have to make this video. I live in the UK and have a USDM Civic and the transmission is fine for the moment but this information is very handy because if anything went wrong i don't think anyone would understand it. I have to change the timing belt myself because I don't trust mechanics to understand that the engine is running in reverse (D16) either.
Thank you!
Great breakdown of the Honda AT5 - really helped me understand why a Honda automatic would be sensitive to heat or ATF problems. The clutch packs seem identical to motorcycle wet clutches (interleaved steel and friction plates). They even look similarly sized!
I just replaced an AT5 in my Ridgeline with a low-mileage used unit (my 3rd clutch is gone - after many miles and a fair amount of abuse). Unfortunately, the replacement transmission seems to have no reverse. Forward gears work, but zero response from reverse.
In studying the factory manual (and watching this vid), the only cause I could see for reverse not working is mechanical (reverse fork not moving the gears). Is there any electronic reason for reverse to not work (I don't see any solenoids associated w/reverse, doesn't seem computer-controlled)?
Thanks!
Thank you! Reverse requires all four shift solenoids and their associated hydraulic passages to be working properly. The 5th clutch, 5th accumulator and reverse servo are all involved. If you get 1st through 5th gears, the solenoids are working and you probably have a reverse servo or linkage issue. Best wishes.
Thank you so much for the quick reply...I was not looking forward to potentially swapping the trans again.
If a solenoid was not functioning, would you expect the trans to throw a code (we have a code reader which can pull trans codes and monitor at runtime).
The purpose of the shift fork? Thanks for the video; my 2008 Honda Odyssey transmission … when I shift to neutral, there’s a grinding sound and then the engine wants to die; also, when shifted into park, the van will still roll. So this video helps out a lot.
325,768 miles on van, brought van used with 90,000 miles
This transmission has had a lot of issues over the years in its V6 application. The 6sp replacement seems to be a lot better. Honda's new 10sp is their first planetary auto.
Very true. I hope their 10 speed is a success. Thanks for your feedback!
Not true. These transmissions regularly last 200K miles if maintained properly. More importantly, these units shift very efficiently and don't gear hunt. The new 6 speeds lock up the torque converter in much lower gears and have a dead pedal feel. The AT5 is far superior to the AT6 from a driveability standpoint.
I have a 5AT in my 09 TL im looking to supercharge my engine to make around 350-400whp do you think the tranny can handle that amount of power?
@@scottn7694 I second that. I have a civic(2012 w/ 1.8) that survived not being serviced for over 60k miles and, still drove great with mystery very dark atf (didn't even smell like atf anymore)
Another genial construction from Honda! They make surprise every time. Thank you for video!
Thanks for watching
Great video, my family has an odyssey with this transmission. Any chance you will review Honda's new 10 speed automatic?
Yes, just as soon as I can obtain one. Thank you!
Thanks for the AT5 training video. Very good. I have the AT6 behind a J35Y1 and it is brilliant.
I also have a 1997 VTI-R H22A4 with a 4AT Sport Shift. I believe these are vulnerable and fail often. Possibly due to poor OEM parts, or so I am reading, such as clutch Fibre, and solenoids clogging, etc. Even with schedule service.
Would you have any experience you could share on this box?
Thanks.
Hi Mr. Weberauto, you said the reason the 3rd clutch pack wore out prematurely is because the return spring is crooked making the Piston crooked causing uneven apply to the clutch discs. My transaxle is doing this and this is a common failure of this transaxle. How can we fix it? My thought is the spring must be redesigned so the top and bottom is flat but who would even be able to do that? A machine shop? Maybe a welder can weld supports on the spring top and bottom so it sits flat?
I think there is a new spring and clutch housing design to address that issue.
@@WeberAuto thank you Mr. Weberauto. I have pulled out the transmission and will be checking the parts soon to see if it has the same abnormal wear on it and I'll see if the parts being sold are the new design. Thank you again
Very interesting to learn about all the sensors on this transmission, I was wondering about the shifting logic because if the ecu detects no vehicle movement and throttle past a certain %, it will upshift from 1st to 2nd even if 1 is manually selected, I've found this very frustrating when launching and going up steep hills.
Yes, it does that to prevent engine damage. Thanks for watching
Thanks your Video helped me open up a tans and fix a grinding noise coming from the reverse gear engagement
I like how you said unique when this transmission fall just need new fluid I own a 2005 the former owner was tired of this van I just change engene oil and transmission fluid 02 sensors and I have a family van the best video about this van what I seen
I don't know much about it, but I'd like to ask. I want to buy a civic 1.8 (5 speed at). Is this gearbox reliable? or if something goes wrong, is it easy to replace?
They should last 400.000km easily if serviced properly.Oil changes at 40.000km or at 50k. They are one of the best out there.
Thank you for your sharing, Professor Kelly. I wish that I can learn from you. I'm a Hyundai motor mechanic in Australia and I overhaul most of Hyundai auto transmission. I'm just following the shop manual but I still can't understand all the components in the gear box.
I just want to know that can you tell it's the valve body issue or gear box internal problems with the oil pressure test when you have erratic gear shifting issue? I can tell the problems with the oil pressure test if one of any gears won't engage at all, but It's hard whenever I have an erratic shift issue unless I dissemble all the internal gear box components. I can't pull the gear box out if it's just valve body issue due to warranty issue.
Also why is the erratic gear shifting(for example delay, shock and jerking) occurring when the valve body has problems? lastly what components in the A/T transmission make the vehicle vibrate? I know the damper clutch is the main cause but can the clutch or brake of the gear box make the vehicle vibrate?
thank you again,
Thank you! I have videos on each of those topics, see my channel at ua-cam.com/users/weberauto. Best wishes!
I can only imagine how complicated/complex the newer 10AT’s are!!!!
I had a 2000 accord with a 4 speed. It shifted soooo slowly. Kind of wish it had the shift quality of the 94-97 where it was much more crisp. After I rebuilt it the first time I did fluid changes every 12k miles to try and keep that filter clean
My guess as to why you found the 3rd clutch piston crooked is excessive piston travel due to the wear of the clutches/steels. The design of the spring caused the piston to not return to the bore squarely.
Yes, I agree. Thanks for the feedback!
I own an XC90, 2004, which has the Aisin 5-speed geartronic. How similar is this to the Honda Aisin AT5?
When I drive the XC90, it gives me the feel of 'extra gears' between 2 and 3, 3 and 4, 4th and 5th gear. Can you explain what is happening here?
Thanks!
That 1st gear "sprag" is the 700R4/4L60 sprag, as well. (Install the correct way, too), it helps.
Thank you for making this video, it was very helpful and educational for me repairing my Honda transmission
Thank you, I am glad it was helpful
So all and all is it a reliable transmission, I have a 2013 after it hit 50,000 miles I changed the oil ran it for a week change the oil again ran it for a week change the oil again this way I can get all the oil out of the converter which you really don’t you get about 80%, then When it hit 90,000 miles I just dropped 3 quarts and added and they say to do it every 50,000 but I do it every 20 it’s too simple not to. I don’t beat the car at all I’m 60 years old I’m trying to figure out by taking care of this vehicle what the longevity should be, I live on Long Island which is a mixed driving highway and around town but it’s not city driving like Manhattan that’s for sure anyway any positive input on my transmission would make me sleep better . thank you
Now it make so much sense why I can tow a Honda with an auto behind my RV as compared to "regular" automatic transmissions.
This has been the single best video to teach me about my transmission: B97A in a 2008 Accord V6. Super grateful for that; I will be replacing some solenoids on mine soon. One question: how does this get lubricated? Are there oil jets, or is everything oiled from the long feed tubes that go into the shafts and clutch packs?
Really educational videos on this channel, with lots of in depth details.
I film auto stuff on a channel and it helped me understand perfectly how the toyota HSD system works
When you really do your research by the book
🚙😊
Very good information, well explained and easy to follow. You pointed out that spring for 3rd gear clutch, how it forces the pressures unevenly, makes sense. I would add, the spring could have been made better, allowing evenly applied pressure, on top the fact that shaft has more work to do connecting the other two shafts together, probably adds to the premature failure of that clutch... and they could have made the clutches larger in diameter for better hold?
Thank you for the video, very informative and very detailed. I do have a question though. I have an 04 Acura TSX. Is there any way to modify the transmission to handle let's say more than 300hp? Like the old American transmissions for example the THM 350, 400, 200R4, 700R4, and 4L60E all have shift kits from various companies like B&M that add extra clutches to the clutch packs to be able to handle more power. Is there anything similar for this transmission or can you just add extra clutches to the clutch packs in the honda transmission?
I am not aware of a way to do that. The Acura versions of transmissions are typically stronger than their Honda counterparts
@@WeberAuto Thank you. Again amazing video, thank you so much for your time.
You rule!!! Awesome video as always. Thank you
Hello and greeting from Romania. Interesting video about Hondas transmission. I want to buy an Honda Accord 4 cylinders with an automatic transmission (2005 2007 7 gen european model) and i was wondering if it s a safe bet . it is a reliable transmission (as long as it is mantained) or i am better with a manual one?You said i had some revisions over the years so i hope that from 2005 onwards it got some. i had so far only manual trannys but i like the automatic ones because i drove one and it s more relaxing. Thank you verry much for your videos.
Hello, the 2005 models had some transmission problems. I suspect most of the have been fixed by now, but there is a possibility that you could have trouble. Best wishes!
This video was unbelievably thorough, thanks.
Hello Sir
Question:
2009 Honda MDX
66174 FAULTY TRANSMISSION 3RD CLUTCH FLUID PRESSURE SWITCH-
P0847 OBD-II Trouble Code:
Transmission Fluid Pressure
Sensor/Switch “B” Circuit Low
Before this issue above there was a software update applied for a shuttering torque converter...few years later the DTC-P0847 issue diagnosed to be the switch being as the issue and replaced but my question is -
Do you think there is internal damage that occurred internally over the course of these issues due to this switch failing and and the seemingly simple fix/issue being the software update/switch itself? Im concerned about gradual issues with the transmission and longevity.
Looking to purchase this vehicle and has currently 130K...
Thanks I always wanted to learn about modern drive trains, very interesting
Elizabeth Cherry Thank you!
Thank you so much! Awesome explanation! It helps me to troubleshoot my MDX 2002.
That was AWESOME. Thanks for sharing your knowledge.
Excellent video, I appreciate your in depth explanations. I have a 2011 Odyssey with a 5 speed transaxle. When I let off the gas there is a surge or jolt felt when the transmission is downshifting. It seems to do it regardless of what gear it is coming out of. What would you say is the reason for this? I am thinking it is solenoid related, but not sure which ones or if it is all of them, or perhaps a filter problem.
Great video, thank you! Is that transmission different to the MCTA found in Acura TSX 2004-2008 4cyl.? Thank you
That's what I'm wondering? Which Honda transmission is that one? Nice to see most of them are built in a similar manner though
@@rickybobby8563 it’s an 03 odyssey, which is nearly identical to any 3 shaft 5 speed on a 6 cyl Honda/Acura. I’m not sure about the 4 cyl models however
This seems to be the same concept as was used by GM/Saturn in their TAAT 4 speed automatic transaxle of the Saturn S series. They have an input shaft and a counter rotating shaft geared to the final drive differential and a hydraulically operated slide gear for reverse.
squagimus Good observation, Saturn did use some Honda transmissions in some vehicles. Thanks for watching.
Thanks for the video. I couldn't see the gear sizes but I assume effectively each pack has the same torque on it? The small diameter of each pack and no load sharing between packs must contribute to the failure rate of these in the heavier vehicles? The original Hondamatic only had two (manually shifted) gears and reverse. Internally it was very similar. It's as if they just kept adding to the original design.
Thanks for the feedback! Each clutch pack will have a different torque on it. The compensate for that difference with different numbers of clutch plates in each pack.
Great lesson! Very helpful! Wonderful teacher! Priceless Thank you again!
Thank you
very interesting explanation.go ahead and do so for overhauling
Thank you!
On the Honda at-5 you say the primary first gear does not use a hydraulic clutch but rather a sprag. That the clutch on that gear only engages in manual 1 for engine braking. If any time the secondary shaft turns in the forward direction the sprag bites, then what on earth disengages in park and neutral to stop the transmission of power through that sprag?
Mr Kelly do you know if MJFA and BJFA transmissions mounted on 2006-2008 Honda Ridgeline are interchangeable? Best wishes!
Best video on UA-cam I’ve ever watched
Thank you!
I have this transmission in my Honda Accord with only 20k miles. Intermittently, the car shifts very rough and abruptly. It is worse when it's cold; it almost always shifts hard when it's cold. Today when I was driving down the highway, it held on to 4th gear for almost 20 seconds before shifting into 5th. What could be causing this? Could a TCM reset help solve this? Are there any solenoids or sensors that are prone to failure, especially in a vehicle that sat for a long time I already replaced the fluid with Honda approved ATF to ensure old fluid was not causing any issues.
Thank you verry much professor!
Thank you!
Very helpful and so accurate explanations of transaxle, i would like to say thank you for your time and effort to explain this functions, very hard to find like you specialist who is really good on his job thanks a lot. I have a Kia Spectra 2004 model and its total milage is 87007km, Auto Transmission. When im going to work in the morning i On the Car and i warm it up for 5min and put on Drive mode(D) its stays no respond, does not moves, once i push a gas pedal to increase an rpm to 1.7-1.8*1000rpm, than it will engage and will jerk lil bit, after at traffic light i put to parking(P) and shift to the drive(D) it would engage smoothly and seams nothing wrong would be fine but later on i park the car for 5 hours and start the car and shit to D it would appear the same what it could be i tried to go several workshops they use to tell different things all and im confuse to who beleave if u would not mind to help i would appreciate thanks.
Thank you, it sounds like the fluid in your torque converter is draining out when you park for 5 hours or more. The fluid should stay in the torque converter and is held there by a special valve in the transmission typically called a "converter drain back valve". I do not know what Kia calls it, but I suspect it is leaking. How to fix it? probably replace the valve body or the entire transaxle. Best wishes.
cant i just change a solenoid valve? instead of changing a valve body on the entire tansaxle?
IsmAil Fazilov no, it is not a solenoid. It is a valve.
ok thank your very much
Hi Prof, Greetings from Singapore. I have a Honda Accord CL7 5AT (Acura TSX) and I love it. I would like to say that this is by far the most detailed and most educational video on the Honda 5AT. It is both inspirational and fascinating to observe the complexity. The level of insight you provide is priceless.
By the way, I have always known that Honda's auto tranny isn't planetary-gear based - broadly speaking - is there an inherent advantage to Honda's design? And if it's so good - why don't others adopt the same? Likewise, could you share with us about the inherent weaknesses?
Aside from this - could you tell us more about what influences the engine braking effect in an automatic transmission? It seems like my Accord has particular strong engine braking which I like alot and do not observe in other cars with planetary-based gearboxes. Thank you so much.
Honda's design is their design. They do no have to pay patent royalties to use planetary designs. Their design is good, but different. Engine braking is a function of gear ratio and torque converter slip rate control. Some transmissions also use a one-way sprag or roller clutch that free spins when decelerating (no engine braking unless you select a lower gear range).
The video is very helpful as a reference material. whether the Japanese version of the Honda Odyssey 2006 atf transmission is also like this..??
Thanks
Great video,I lot education,I have a question,on a 5 speed BDKA Acura MDX ,I got a guy to do and overhauling to rebuild the clutches 1 ,clutch was burn, he took it a part in set for one month, a part , ended put it back together, I end up with a 1 1/2 pipe extra , them I look over and over in the computer where that pipe go ,I can't find anywhere the location where that's pipe go, in the tranny I ended installed back the tranny in the SUV , but will not engage,1,2,3,4,5, in can go reverse but not forward, ,,??? Can you please give me some advice , I will really appreciate, thank you,
I am sorry to hear that. There is a place for that pipe. Watch this video closely, I show where every pipe goes. Best wishes.
WeberAuto thank you.i will check out
Its worth having a look at New Holland [or Case] tractor transmissions for a more sophisticated version of this type of transmission. Specifically the NH Range and Power Command transmissions which have a six speed powershift [with auto or manual change as the driver decides] similar in design to the Honda [on a larger scale]. On top of which there is a range box giving three ranges and reverse speeds equal to the second range. The range shifts are robotised synchromesh, as is the forward-reverse shuttle, which require a disconnect of drive while they shift. The robotised synchro changes are similar in operation, though not is design, to that of dual clutch car transmissions such as the VW DSG or the Ford Powershift.
Thanks for your feedback!
I have a question about what holds the transmission in park is it a gear or a pin my 2014 honda crv won't hold its self in park. How can I fix it. You are the man I need to ask because ya do a great job explaining how that transmission works
Which automatic transmission year could replace.2003 honda accord 6 cyl recalled.transmission.that could fit into.it.please reply.thanks May 1 2023
Good afternoon any help will be appreciated I got a 04 honda odyssey when shift to reverse it makes a grinding noise but sometimes it does work intermittent but shifts fine in drive any ideas thank you for your time
Reverse is engaged with a shift fork, like a manual transmission. The shift fork is hydraulically activated by the valve body. Make sure your fluid level is correct, check for trouble codes. If the fluid is correct, there is probably an internal problem with the transmission. Best wishes.
Buenos dias , gran video !!!
Poseo un Honda Accord diesel 2.2 automático de 2013 en España, la caja se parece a esta creo, tengo varias dudas.
Que Atf seria mejor el Honda original DW1ó por ejemplo el Red Line D6 Atf DW1 que usted supongo conocerá ????
También me llama la atención la caja de mi coche no tiene filtro exteriór , por lo que no puedo cambiarlo, sería bueno y posible ponerle uno en el circuito de refrigeración??
Gracias por su respuesta . un seguidor desde ESPAÑA
Thank you. Use the DW1
@@WeberAuto El que vende Honda DW1original quiere decir ó que también vale el Red LIne D6 Atf DW1 !!??
despues de ver sus comentarios me surge esa duda de si recomendado es de confiar ???
O solo es usable el que vende la HONDA
Gracias por su respuesta
Son grandes sus videos, muy visuales !!
Despues de tiempo vuelvo á ver el video, como ya dije tengo esa caja de cambios.
Y si la pregunta era esa si el Red Line es de confiar y tan perfecto para la caja como el honda DW1.
Otra curiosidad le comento es que no trae ningún filtro exterior que se pueda cambiar como mantenimiento y eso me sorprende y preocupa ya que va por los 350.000 km que me parecen muchos .
Cuantos km creé usted podra durar esta caja ?????
Por ayudar á que aguante mas km le hice varios cambios de ATF seguidos para que se renovara todo el aceite (teniendo en cuenta nunca sale todo) . Por ahora el coche va perfecto , es fabricado en 2013 asi que tendra todas las actualizaciones .
Un saludo
I thought this was called the H5 series. Never heard of AT5. Is it the same thing?
Either way, awesome video. Would be nice to see the variants side-by-side.
Thanks. Honda training literature and web-based training calls it the AT5. Where are you seeing anything different? I have never seen an official publication from Honda with model names. I probably missed something.
@@WeberAuto I could be wrong. Just something I've heard repeated here and there. Maybe you're right. Thanks for the reply :)
@@Npc5150 hes right its not easy finding a "AT5" online. you didnt say specifically what "AT5" it was or out of. thats like says its a single cam and not saying which one when there are so many versions.
@@Npc5150 "AT5" isnt on any list of honda transmissions available online.
I have a slight whining noise upon deceleration when a let off gas from 35mph down to about 10mph. Same noise even when i put it in neutral in that same scenario. It's a 2006 Acura TSX auto. Please what could be the problem?
Hi..., how can you tell slipping Symptoms? Reason being I just got mine redone. But it tries to keep going with a small jolt. When I apply the brakes slowly. Or when I press the accelerator slowly and ease off. The rebuilder keeps saying mine is fine. Plus I hear a very large click sometimes. When I put it in reverse also. The motor mounts and tranny mount are all new...thxs
If the transmission slips, the engine rpm would increase as you accelerate, but the vehicle would not speed up. Best wishes!
This his guy is awesome. Thank you so much for this information .I have questions on adjustment of the linear Solinoids for honda transmissions .If you ever have the time I would love to see what you would have to say and demonstrate. Thanks
I have bought 3 1997 Honda Accords, all with automatic transmission problems. I took them apart and the clutch plates were bad in all of them. So I replaced them with a seal kit and a rebuilt converter, and now I have been drive one with no problems for around 3 years. I guess they had poor clutch plates and the new clutch plates I got were updated to replace the old clutch plates,,,,,,,,,
Thanks for watching
excellent teaching video, thank you ...
Thank you!
I just rebuilt my 2006 Honda Odyssey. It was overheated. I changed all the seals and clutch pads. There are some issues with the transmission that I can’t figure out. Trouble code P0757 P0776. Start Low RPM have no D gear. The solenoid have been tested and working properly.
Hi ,Honda it used Z1 transmission fluid before 2011 and it was switched to Dw1 later and it is thinner than the Z1 , i have accord 2014 4-cylinder k24w2 engine the Middle East version comes 5-speed transmission What is the fluid for this transmission Use under high temperatures in the Middle East, Like honda z1 , amsoil fluid atf Multi-Vehicle or Fuel-Efficient fluid like dw1 thank you sir
Thanks for the video!
You mentioned that Honda, other than the others, puts the solenoids directly on the transmission case. Is there an explanation for it? I can imagine that the cost could have been reduced with all the components arranged on one center unit. Can it be that this 5-speed-AT is based on a manual transmission so that the solenoid is built as an add-on solution?
I'm looking forward to you next video.
***** I have no explanation for the external solenoids. You make an interesting point regarding an add-on solution to a manual transmission. Their 4, 5, and 6 speed transmissions all have external solenoids. It is certainly easier to service, with external solenoids. Thank you for watching.
There is a replaceable filter on the 5AT? Why did my mechanic not tell me this.
I have a cuestion i hope you can help me.i have 2002 acura mdx 5speed automatic bgha .can i instale a bvha 4 speed trasmission from honda pilot, to my acura mdx ???????.the trasmission case is same same¡
quick question too, if you put a normal auto into neutral you can rev the engine as much as you like and the vehicle remains stationary. In the Honda auto there is a rev limiter for neutral but if you defeat the limiter by putting the trans in N whilst moving the neutral gear actually provides forward motion at high rpm. how come?
There is a slight drag created by the fluid in the clutch packs. It is normal.
Thankyou!
Excelente explicación,muchas gracias.
Amazing design. Thank you for making this video.
AdirondackNY Thank you!
Thanks for your studies and I will like to know about honda mzka 2003 on reverse gear
How its operate,
It Stephen kuria from Kenya 🇰🇪
Professor,
Hi I hope everything is ok!, as we all know Honda has a very unique history with transmission specifically with Automatic 5 speed Transaxle. During my research I end with the transaxle models B7WA and M7WA, what is the difference between these two?
Regards,
I know there have been several changes to those 5 speed transmissions, but the biggest problem I have is determining the model number of teach transmission. I have never been able to figure that out. Where are you coming up with the B7WA and M7WA designations. I have never seen anything about that in Honda's own service information, but maybe I have missed it. Thank you!
Very informative, great
Thank you!
Q: Can you swap the AT5 in place of the (infamous) BX7A..?
J Kelly u r the best!!!
Master!!!
Thank you!
Hey I have a silly question, what does it mean if there is fluid in the internal clutch of my 1998 Honda Odyssey?
Hello Sir, What is the name of Honda Civic uses trassmission inside the Civic for FD6, FB7 and FC5 models ? Can it be AISIN and/or ? FC5 uses CVT but what trade name of company ie AISIN again ?
I do not know who makes Honda transmissions, I think Honda does
I have a 2010 acura MDX. I dont have any transmission issues or slipping my second gear does shift sort of hard. It has a heavier shift shock relative to the other gears. Is this a bad sign? I was told that honda transmission 2nd gear does shift harder then the others.
Good question. I have not heard of that. Yuo might check with the Acura dealership to see of there is a flash update for the computer which controls the transmission. Besy wishes!
consider servicing the ATF fluid and filter then do a TCM Reset so it relearns proper shift points and pressures with fresh fluids.
Most ppl will tell you "this is normal..." until you need a $50000 rebuild and that is normal course too!
Transmission die of high heat from failed/abused clutches that contaminate valves and plug filters. So drive your tranny gently with a light foot to minimize clutch wear AND service fluid for proper viscosity.
Ultimately tranny fail because skinny clutches are the weak points. Similarly this is like disc brakes.... even gentle driving can not prevent replacement only extend life.
👍
Great explanation!
Thank you
Very well explained
hi there! Would you know what has changed in the 5AT transmission since 2003? I have 5AT transmission in my Civic Tourer 2016 model, here in UK. Just wondered if there were any significant changes \ improvements. Many thanks!
I don’t know what they did but they sure did figure out the transmission. There was nothing but problems in these transmissions around years 2003 to 2006, especially in the v6 models. Now they don’t really seem to have problems but just do a drain and refill every 40k miles to keep the fluid clean. These transmissions hate dirty burnt fluid.
@@robbym3542 cheers for the advice! My transmission is filled with their new fluid DW1 which is supposed to be fully synthetic. However I will most likely do a drain/fill at 40k or earlier!
As with all automatic transmissions, there have been many changes and improvements over the years. You would have to find all the service bulletins to determine the changes
@@WeberAuto thanks!
What a great teacher.
Do you know if I can swap my CRV early 4 speed transmission to the later 5 speed transmission?
You cannot swap transmissions, too many differences
Thanks for your reply.
So if we have actual gears, does this mean we can swap gears out? Cuz I’d LOVE to get the manual gear ratios put in my automatic
Unfortunately no, the gears are not interchangeable with the manual. Where a manual gear would have a synchro, the automatic have an extended part of the gear that's engaged with the clutch pack. It may be possible to take the gears from a 6 speed, which has lower ratios, but I doubt it's possible.
@@yummyhershey5902 I was talking like having custom gears cut specifically for the auto, I know manual gears won’t work
@@Draftsman_MC1300 ahh I didn't realize that was what you meant. Well then yeah, I'd totally possible as long as you can find a company to do it for you (or learn to do it yourself, but the tools would cost a lot of money).
The article of the clutch drum is 3 gears, please write
Five speed honda automatics are notorious for third gear failure. Worked on hundreds, always the same thing.
But on a good note they can go
200,0000 miles if properly maintained.
So the clutch packs definitely need to be replaced 100%. But I can't open the transmission myself, and if I want to pay for a transmission rebuild, it costs $3000? This is kind of amazing
The gearbox has lasted 400-600k km for sure and used ones cost 180-350€. So no, you never have to replace them when you change oil properly.
@@mulvahetpolemidasateed That's a flat lie
@@themodfather9382 According to what? Local car ads here. 2.2 diesel 5 speed autos have over 500k km on some. Older audis have 500-800k on clock. Nobody never opened those boxes.
@@mulvahetpolemidasateedThis is nice to hear that if they services properly they are good for 500k km. I am just about to replace my Civic Tourer 1.8 manual for a 3 Gen. CR-V 2.0 automatic
May I have the url for dct with torque converter transmission video .
Is the instructor in a wheel chair? He a great teacher either or!
Mine is a 2013 CRV with the five speed I would imagine it’s the transmission you’re showing me here, I’ve change the oil every 30,000 miles, right now it has 101,000 the second time I changed it I did the fill and dump so I pretty much flushed it out. I’m very conservative when I drive I am 60 years old, what I’m getting out here is with real good maintenance and treated properly what’s the furthest you’ve seen one of these transmissions run
@Steven Strain Same thing with my CRV I think 14 was the last year of the five speed And then they went with the rubber band tranny
how much power do you think one of these could hold?
Amazing video.
Why is there a torque converter if it's practically a manual?
Especially if the pressure is controlled.
Because there is no main clutch, you still need to be able to disengage the engine from the transmission.
@@samsmith3025
But you can use the first gear pack as a main clutch can't you?
And in stop disengage all of them and in first gear slowly increasing the pressure so the car will start like a manual.
@@NathanAlpern I think turbine in the torque converter provides the hydraulic pressure. It's weird why they would design it like this though. I don't understand.
@@jerryp2433 there is a dedicated pump in the valve body that provides the hydraulic pressure. They don't need a torque converter. They technically didn't need a main clutch at all. They technically could've just used the clutches attached to the gears, but they didn't design it like that.
@@yummyhershey5902 I thought the whole reason why Honda developed a manual automatic type tranny was to avoid power losses associated with torque converters.
Not sure if I missed the explanation on how reverse gear is activated.
I have a power vibration from 1500-1900 on first and, second that happens when changing gears and, is very present at 1800 rpm. Otherwise works great. This is a civic 1.8 2012 at5 thanks.