Hey Gary!! I'm the guy that sent you an email about installing my reverse band on my4t65e. I was able to get the band retaining bolt back in, and my "partial rebuild" was a success. I installed 3 new raybestos bands in the transmission because I heard from you and others that they tend to break. It took 11 quarts of dexos vi, and I installed a rare earth magnet In the pan next to the factory magnet. I can feel a difference when the van switches gears in that the grab is a little more sudden with all new clutch plates, and more aggressive. Before it was a little slippy, but in the 17 years of us owning the van, we must have slowly gotten use to it. Thanks for your reply and your videos!! After seeing the inside of a 4t65e for the first time, I think they are well engineered.
Thanks for the info Gary! My 2008 Chevy Uplander just did this last week . Initially no Drive and 3,but 1 and 2 still work so I tried to drive it home about 5 miles or so at a traffic light the 1rst and second gear also went out, but reverse still works. So I reversed to a safe location by the road and called a towing company . I am now trying to decide whether to get the transmission fixed by a mechanic since the car still drives fine and has no other problems or junk it since it might cause me more than it's value. Thanks again for the info.
Fantastic vid Gary. Have an issue with a CVT in a nissan versa. Heard a pop at a stop light. Only could back up. I see Nissan CVT's have serious life span issues. This helped a lot thanks again.
So with your help via the videos you post I rebuilt a 4T65E-HD. It's now has 28k since the rebuild with no issues. I now have a problem when transmission is hot, starting from a stop it kinda pops into first but not a hard pop. However when you accelerate you can feel a little slippage in 1st gear. I did install the sonnax extended length forward band servo pin kit and the sonnax tcc relief valve during rebuild. No transmission codes when I checked, and only when hot
tore apart my whole transmission for no reason lol, no forward only reverse. everything internal looks perfectly fine, nothing would affect forward gears. Starting to think my EPC solenoid burnt out.
I'm thinking this might have happened to my '09 Chevy Cobalt tonight? 63K miles on it, no warning sign, made a turn and drive disappeared--reverse works fine, and I was able only a couple blocks from home, and able to get it home in low--still no drive.
Hey Gary thanks for the videos, they are awesome. I was wondering if you'll ever cover the 4T65E-HD issue where the filter is plugged from torque converter clutch failure. I have a 06 impala ss with the 5.3L engine that with drive for a couple blocks, shut it off for a while and you will get another couple blocks travel.
Thats actually the forward band. I replace a ton of those in the car. Prob not the best practice but I can do the band, and input piston in about 3 hours.
I found it! Just didnt see it first time I scrolled through your channel, great videos. Id have you work on mine but I live in CA. now AND I love working on my car, thanks for your instruction brother!
Awesome video. I have a question. I have a 08 impala police 3.9l 4t65e that had no forward. When I pulled the trans fuse it worked (which if I'm right puts it in limp mode) was wondering if you think it's the forward band or maybe if I should try the TCM first? Thanks!!
@@Jessewest26 Sounds like the band is broken, when you unplug the solenoids it will start out in 3rd, the band is 1st and 2nd. If reverse is good, then that band is broke
May I ask, what would be the possible reason for no movement when I shift to drive? But when I step the gas at around 2500 RPM it moves. Reverse is ok. Thanks.
If reverse is ok with no problem,then you have a problem with your band, it's a triple wrap band , if it still moves a little maybe a piece of the band broke off
Hey Gary I have a 07 optima automatic trans and it will only go in reverse and no forward, I tried changing gears manually and it will only go up to 2 and sometimes would not go up or down any idea? Transmission fluid is good
Excuse me. I have a 2008 Uplander. Yesterday suddenly the car just lost movement on D gear. No strange sound, no warning lights. All the other gears seems to work fine. I make may way home on the L1 gear but very slow. What's wrong with the car? Can I still drive it or must tow to mechanic? Costfull repairs? Thanks.
@@GaryFerraro If so (1-2 band broke) can I still drive to mechanic with the L2 and L3 gear, or call tow help for some bucks. Why should these things always happen right now when I am broke on money?
Had this problem with 06 monte SS. We found a slightly used GM Good wrench trans. Put it in everything worked fine for about 1 month. Have R and 1 and 2 but no 3 or 4. If I unplug the wire harness to the trans it will take off in all 4 gears. I replaced the TCM. same issue. Checked the flow thru the cooler 2.3qts in 30 seconds. What would your guess be?
@@GaryFerraro kinda weird 2 transmissions, same issue in 1 month. The first had metal shavings in the oil. Do you think this is a pressure problem? Valve not working? Not sure what the direct clutch is?
@@playsportfun3356 so what exactly happens when it goes for 3rd? when it should shift to 3rd does it just spin up like neutral? If you have a 1-2 shift then the 2nd clutch is ok, the 2nd clutch stays on for 3rd and 4th, so i'm thinking you have a problem with the 3rd or direct clutch
I heard a pop leaving the store had no drive but I still have reverse and I still can drive it in manual. I'm a full time single father with no other options right now. Could I still drive it in manual until I can figure out what to do?
Hi, i have a 2006 Buick Lucern 3.8 V6 that is giving me fits. I purchased it as a "run and driving" car from the auction to give to my stepdaughter. Car has a 120k ez miles on it, starts right up reverse and drives fine. in fwd and reverse, you can feel the gears change ect. Once warm however the trans feels like it is slipping and that gets worse and worse til you are stopped with no motion. Any ideas? does this car have a TCM? i can't find one...
The problem that your having is the filter is clogging up because something is coming apart in the trans, if you install a new filter will probably only last a few days before it cloggs again
Hello, I remember writing to you not to ling ago about losing first gear in an 08 chevy impala. I stated that there were no codes present. No codes ever popped up. I saw it was low of fluid and added a quart plus some trans seafoam. Tonight I drove it around manually. Upon waiting I heard a knock that was felt in the steering wheel. Well I now have first gear back. Hell it even downshifts on it's own. Now that first gear works. It shifts from first to second and now hangs up in second and gets into 3rd. The car will take off in drive. While it's in drive and shifts to 3rd the rpms go up and then it pops outta gear. I have never experienced anything like this. Its is so bizarre and wondered if you have ever in your career heard of anything as wild as this. What is happening with this unit?
Would this also make the uplander not want to shift into drive or 3rd but works in 1st and 2nd gear ? Someone told me the problem is this: Pressure Control (EPC) Solenoid is that possible or more or not at all. Thanks
Honestly not sure on this one, There are a few companies you could look into that supply performance parts, Circle D transmission or a company called Alto
I’ve got an 07 Grand Prix GT- left work last night, reversed, shifted to drive and accelerated. Heard a pop of sorts and then drive and third wouldn’t work. I have reverse, 1,2, and if I get to about 30 in 2, I can manually shift to 3 and D, and feel it catch. The shift cable is still attached, slightly loose, but visibly cranks through each gear. Could this also be a band issue? Or maybe an electronic one?
@@joewheeler7527 ended up having to get the tranny replaced. Don’t drive it anymore, you can probably get it done cheaper than me, I kept driving it and fucked it up more than it was already
It appears mechanically my 4t65e-hd doesn't have mechanical issues. If I unplug the harness from the trans and shift it manually I have all the gears and it accelerates fine in all gears. Plug the harness back in and I only have R,1&2. Would it be safe to assume it's a solinoid, or valve plate, or selector switch? I'll probably replace them all.
I read somewhere that if all else fails, cut the brown wire. Brown wire is for like torque converter something solenoid. Im about to cut that brown wire and see what happens. I will disconnect the harness from the trans first like you mentioned. This might be electrical.
@@GaryFerrarolast I remember was my forward was there, but would never shift. Like if it only had one gear. If I stepped on the gas, I would pick up speed along with the rpms, but never shift.
@@GaryFerraro I been trying to figure out which inexpensive code reader is the best. After a certain value$$$ I might as well just replace the valve body, valves, plate and gasket and skip the code reader.
My 05 Buick lesabre has this transmission model and today would no go into any gear besides reverse. Does this sound like a broken band? Thanks in advance
Gary Ferraro yes the car holds in park when I put it in a any grear it just revs the car was running good I was cruising around stopped to get gas n next thing you know I'm towing the car home everyone says I need a transmission
@@reneestrada3236 Certainly sounds like it, something either broke inside the transmission or the converter stripped, either way may have to come out. No fluid leaking? any noises when you select drive or reverse?
Well, you pretty much have to pull the whole trans down to replace the band and it is very common for the 2nd and 3rd clutches to wear out, if you are going to keep this car i would say yes to an overhaul
So I need your opinion my friend so my Pontiac g6 gt coupe has the 4t65e transmission and it will work perfect in reverse will not work in drive but will work in manual mode but car does not take off fast like it will not go until i hit about 15 mph but once it does hit 15 mph it goes through all 4 gears I even drove it done the highway just fine but remember this is in manual mode not drive and once I hit a red light and I try taking off again it hardly goes at all until it hits about 15mph then it picks up speed, could this be the oil feed pipe? Not sure if thats what its called but its right by the transmission filter those pipes im hoping thats my issue. Does it sound like that to you?
@@GaryFerraro thanks for the video. I was scrolling hoping to find someone with the same issue and here it is. I thought it likely to be the band. Probably caused by a pressure solenoid that has acted up every now and then. It's my sister's car and she described the sudden jumping into gear after a stop now and then. Yesterday she called me stranded and I drive the car home for her and it was doing exactly as this person described theirs. If you shift manually you can get her going and strong in reverse. Put it in drive and it will not move at all.
@@GaryFerraro 2011 chevy impala. Same symptoms as described in above msg. Has reverse with no problem but nothing in drive. Will go when shifted manually starting in 1st but slips until you can shift to 2nd. Then it seems to go normal but I was on low speed limit roads nursing it home so I'm not 100% sure it isn't slipping in upper gears. Didn't feel like it was slipping once you got into 2nd gear.
@@chrismechanic6164 If reverse is good, that would eliminate the input clutch and sprag which would only leave the band as your problem. Only other thing you can do is to pull the servo out and make sure the seals are not torn(not very common) band breaking is common
Hi gary i need valve bodyparts like 3 -4 acumulator valve for this tranny and its not available in my country as well as at sonnax transmission parts do you know another source
Yup, servo pin over-travel means that the pin slams the band and force / momentum does the damage! 'Thanks' GM! Too bad all the guts have to come out just to get the band out. New pin installs with the servo cover off, so you need to get the tranny out of the subframe for clearance!
ok, first are you sure this is full of fluid? On these units i always "overfill" them by half quart or so this way i know it's full. Any issue in reverse?
@@hemi.210 If no issues in reverse, this would eliminate the input clutch and sprag, which would only leave the band. To double check the fluid level. When the car is cold(first thing in the morning)do not start the car. Pull the dipstick out , wipe it clean and check the fluid level(car not running) If it's 2 1/2 inches above the full mark then the trans is full, if below it;s not full, easy to do. The one i had read full but was 3 quarts low on fluid, as i was adding the level did not move until i added the 3rd quart, if it is full, then i would say something with the band or the piston the applies the band
@@javierochoa432 No Reverse is not common on this transmission, there is a band and the input clutch applied, if it moves forward that would eliminate the input clutch. Never really seen issues with the reverse band but it's either that or something broke or stripped inside the trans. When you select reverse do you feel an engagement?
I was wondering if someone could help me try to figure out what shop I should send my car to. Transmission shop or mechanic shop because I inherited my grandmother's 2004 Pontiac grand prix gt with 55k miles and I drove it home and it drove like brand new! I drove it a couple more times and parked it for about a month. Well when I got into it I had no forward gear. Manual first would kinda work. Now I noticed mice had been chewing on the insulation on the upper hood and back towards firewall. But I'm not noticing wire damage. Could it be a broken wire causing the problem?
@@GaryFerraro reverse works fine but it does slam into it a little harder than usual. And in drive I feel it just slightly engage but doesn't really wanna go if that makes sense. All manual gears are the same as drive except 1st it engages fine and has good drive.
I thought it must be a rule that car UA-cam videos had to start with "Hey, guys, what's happening?" Thank you for not, first clue someone smart was doing this video. I think, repeat, think that the broken band is no forward in D or 3 but 1 and 2 work. And reverse, of course. I think you imply that below in the comments. That's the situation right now in my 2000 Regal GS and I derive my conclusion from the official GM shop manual. When I drive in 1 or 2, there are also some "bangs," hard moments as it tries to make nice, up and down shifts. Attempts at getting the right line pressure with the messed up band servo? What's weird is that for several months I've been monitoring and analyzing some noises. A bearing like noise in D, drops when in N. Drove fine, no increase in noise with increase in RPM. But the bugger was an intermittent bad noise in reverse, almost "clanking". Now with the presumed front band bad, no noise. Or, maybe it's just in a behaving good boy phase. As this car has 187,000 miles on it, the previous and only owner obviously never changed the fluid (I did not long after buying in May) I'm thinking of just doing a factory rebuild swap like from Rock Auto. Dyno tested, 3 year parts and labor warranty. I lean this way also because my extended family history of shop rebuilds on 3 vehicles is 0-3 success rate. Obviously, this reflects poorly on the likes of you, but that's where I'm at. I grew up in Huntington. Have a good holiday, sir!
Please help. 2000 olds silhouette. Lost drive. Reverse is cool. I have to start driving in frst then shift like a manual. After 20 mph it drives normal. No shaking no vibration, fluid is pink , not over heating . Idk you seem to know ur craft. I seem to find alotta vids but no real answer I posted the problem on my channel it's 3 short vids . I live in it and Please don't say sell it. Ty in advance
tyranny? Auto parts guys can even distinguish brake pad and brake shoes. It's sad in this country nobody want to do shit and nobody wants to either amazing
@ yes, usually do to a malfunctioning EPC solenoid, applies band with to much pressure and snaps the band. Plus the servo pin travels about half inch and thats to much
Yes this happens all the time from what I can see. Do you have to tear the whole transmission out to repair this? Mine broke EXACTLY as the one in your video! I do not have the space or patience to pull a transmission right now but that is the only way I have seen repairs such as this done. Is there another way?
Hello, I have a 2008 chevy Impala 3.9 about 94,000 miles. Winter is here in NY. I jumped my car, battery died. Drove to the store trans worked great. A couple days later dues to having kids. I swapped the dead battery to a new one. I go to take my impala to the store and it acts like the E-brake is on. I get it on the highway. It takes forever to accelerate with one shift into overdrive. I shifted the car to 1st, it took off in second, moved the shifter to 3rd then to drive and it performed normal once moving. I tried to downshift into 1st going slow of course, does not go into first gear. Did me changing a dead battery really do this to my transmission?
@@GaryFerraro Wow Thank You so much for replying this fast. I live upstate in Johnstown NY. So going over the problems. Reverse works as it always has, no issue there. Even from drive to reverse its fast and functional. When shifting to Drive/Overdrive that's when the car is struggling. Rpm range hangs in the 2,500 to 3,000 range while putting a lot of effort getting up to 30 to 35 mph, when you hit this speed you can hear that the engine is fully locked with the gear in the transmission and the power brings the car up to speed as it should. Now, if I start out in Drive/Overdrive and accelerate it's that struggle. When I took my foot of the petal and dropped the shifter down to 2nd, The trans did shift right to second, you could hear and feel it, pushing back on the petal and the car will accelerate faster the being in drive. I should state that while I placed the shifter in 2nd, as the speed increased and rpm range I manually shifted the car into 3rd to which it then shifted as it should, from there up to 4th etc and it runs as if there is no issue. I did start the car in the 1st gear setting, it took off in second. If I accelerate in 2nd and move the shifter to Drive, not only will it slow my acceleration but also the rpms drop and vibration can be felt. While down shifting with the shifter, my foot was off the accelerator on an open road. As the car slowed I down shifted in a safe rpm range to not make the car jerk forward because of the speed. It dropped to 3rd, 2nd yet will not acknowledge that 1st gear is there. This just happens after changing the battery. Never had an issue prior. I truly am both frustrated and baffled.
@@GaryFerraro Yes, That's exactly right on the money. It behaves just as you stated. Also, since I missed your question in the first response. There is currently No "Check Engine Light" on. Although I do suspect that there may be one coming on soon. The battery was just changed and I didn't really drive it enough to complete the system checks.
@@Cnightz ok, it sounds like the trans may be in failsafe mode. You should have the car scanned for codes. I never had a solenoid short out on me from changing or disconnecting a battery but at this point have the car scanned for codes, this may give some direction on what the problem is. If there are codes present for the trans, let me know what they are
that could be the direct clutch. If you can get access to a scan tool, look at the T.A.P cells (transmission adapt pressure) Know anyone with a scan tool like snap-on?
@@GaryFerraro Um no I have a scan tool but can only read PCM codes not TCM I can go get it scanned at a shop or something. Those scan tools are expensive
Good morning boss how are you I have Bmw 640 Transmission ZF 8HP45 Car no shifting the fault code 420531 voltage supply output stage : short circuit to earth
@@GaryFerraro I have checked the fluid and it's full and it doesn't have any metal debris in it as far as I can see, it's been sitting since winter started because it started happening as soon as it started snowing. I start it up everyday and make sure it goes forward and backward and it hasn't had any issues but it hasn't been farther than my driveway
Hey Gary!! I'm the guy that sent you an email about installing my reverse band on my4t65e. I was able to get the band retaining bolt back in, and my "partial rebuild" was a success. I installed 3 new raybestos bands in the transmission because I heard from you and others that they tend to break. It took 11 quarts of dexos vi, and I installed a rare earth magnet In the pan next to the factory magnet.
I can feel a difference when the van switches gears in that the grab is a little more sudden with all new clutch plates, and more aggressive. Before it was a little slippy, but in the 17 years of us owning the van, we must have slowly gotten use to it. Thanks for your reply and your videos!! After seeing the inside of a 4t65e for the first time, I think they are well engineered.
They have few common problems other than that it's a good trans
Thanks for the info Gary! My 2008 Chevy Uplander just did this last week . Initially no Drive and 3,but 1 and 2 still work so I tried to drive it home about 5 miles or so at a traffic light the 1rst and second gear also went out, but reverse still works. So I reversed to a safe location by the road and called a towing company . I am now trying to decide whether to get the transmission fixed by a mechanic since the car still drives fine and has no other problems or junk it since it might cause me more than it's value. Thanks again for the info.
Have you got any prices from shops?
They have not given me an exact price yet but estimated it at around $2,500 Canadian either way.
When you convert that to US dollars, that is a good price@@MarkBenjamin-jx4qu
How much to get my 2007 Grand Prix gxo
Where are you located?@@MichaelShack-xs1lp
Fantastic vid Gary. Have an issue with a CVT in a nissan versa. Heard a pop at a stop light. Only could back up. I see Nissan CVT's have serious life span issues. This helped a lot thanks again.
Sometimes they extend the warranties on these, what year is the car?
@@GaryFerraro 2008..already had 1 rebuild about 3 1/2 yrs ago.
So with your help via the videos you post I rebuilt a 4T65E-HD. It's now has 28k since the rebuild with no issues.
I now have a problem when transmission is hot, starting from a stop it kinda pops into first but not a hard pop. However when you accelerate you can feel a little slippage in 1st gear.
I did install the sonnax extended length forward band servo pin kit and the sonnax tcc relief valve during rebuild.
No transmission codes when I checked, and only when hot
Thanks Gary! You’re a life savor!
tore apart my whole transmission for no reason lol, no forward only reverse. everything internal looks perfectly fine, nothing would affect forward gears. Starting to think my EPC solenoid burnt out.
I'm thinking this might have happened to my '09 Chevy Cobalt tonight? 63K miles on it, no warning sign, made a turn and drive disappeared--reverse works fine, and I was able only a couple blocks from home, and able to get it home in low--still no drive.
What is your engine size?
Hey Gary thanks for the videos, they are awesome. I was wondering if you'll ever cover the 4T65E-HD issue where the filter is plugged from torque converter clutch failure.
I have a 06 impala ss with the 5.3L engine that with drive for a couple blocks, shut it off for a while and you will get another couple blocks travel.
clogged filter for sure, classic sign
It will be possible to get the parts numbers and where to buy them?
Thank you.
Great video!!!
What's the part number on the pin with 2 Teflon washers?
sonnax part number 84571-01K, I use that every rebuild
"pin" this comment! @@GaryFerraro
Thats actually the forward band. I replace a ton of those in the car. Prob not the best practice but I can do the band, and input piston in about 3 hours.
Yes, very common problem
Does the trans have to come out I have a 2011 impala?
m ph I took the trans pan off and found the broken band piece, I’m wondering if I have to take the trans completely out?
You near Michigan I’ll pay ya to come do mine 😂
Great Explanation, do a tear down of a 4T65E! I grew up in Farmingdale in '55,
Thanks for watching, i actually think i do have one already
I found it! Just didnt see it first time I scrolled through your channel, great videos. Id have you work on mine but I live in CA. now AND I love working on my car, thanks for your instruction brother!
Awesome video. I have a question. I have a 08 impala police 3.9l 4t65e that had no forward. When I pulled the trans fuse it worked (which if I'm right puts it in limp mode) was wondering if you think it's the forward band or maybe if I should try the TCM first? Thanks!!
I should add that fluid level was good and it was not old at all (still really red). But yeah.. Any info is appreciated
Reverse is good?
@@GaryFerraro it is.
@@Jessewest26 Sounds like the band is broken, when you unplug the solenoids it will start out in 3rd, the band is 1st and 2nd. If reverse is good, then that band is broke
@@GaryFerraro right on. I'll have it checked out before I do anything. Thanks for the help. I'll let you know how it turns out
May I ask, what would be the possible reason for no movement when I shift to drive? But when I step the gas at around 2500 RPM it moves. Reverse is ok. Thanks.
If reverse is ok with no problem,then you have a problem with your band, it's a triple wrap band , if it still moves a little maybe a piece of the band broke off
@@GaryFerraro yes, it still moves a little and need to apply the accelerator before it moves.
Hey Gary I have a 07 optima automatic trans and it will only go in reverse and no forward, I tried changing gears manually and it will only go up to 2 and sometimes would not go up or down any idea? Transmission fluid is good
Very possible the underdrive drum is broken, fairly common
Excuse me. I have a 2008 Uplander. Yesterday suddenly the car just lost movement on D gear. No strange sound, no warning lights. All the other gears seems to work fine. I make may way home on the L1 gear but very slow. What's wrong with the car? Can I still drive it or must tow to mechanic? Costfull repairs? Thanks.
Sounds like the 1-2 band is broken, trans will need to be done probably about 2500ish
@@GaryFerraro If so (1-2 band broke) can I still drive to mechanic with the L2 and L3 gear, or call tow help for some bucks. Why should these things always happen right now when I am broke on money?
@@No_Jam888 Really can't drive the car, better off getting it towed
Had this problem with 06 monte SS. We found a slightly used GM Good wrench trans. Put it in everything worked fine for about 1 month. Have R and 1 and 2 but no 3 or 4. If I unplug the wire harness to the trans it will take off in all 4 gears. I replaced the TCM. same issue. Checked the flow thru the cooler 2.3qts in 30 seconds. What would your guess be?
Something happened to the direct clutch, when it shifts to 3rd does it just go to neutral?
@@GaryFerraro kinda weird 2 transmissions, same issue in 1 month. The first had metal shavings in the oil.
Do you think this is a pressure problem? Valve not working?
Not sure what the direct clutch is?
@@playsportfun3356 Did you scan the car for codes?
@@GaryFerraro either I don't have any or my code reader doesn't do transmissions. Is it a special code reader?
@@playsportfun3356 so what exactly happens when it goes for 3rd? when it should shift to 3rd does it just spin up like neutral? If you have a 1-2 shift then the 2nd clutch is ok, the 2nd clutch stays on for 3rd and 4th, so i'm thinking you have a problem with the 3rd or direct clutch
I heard a pop leaving the store had no drive but I still have reverse and I still can drive it in manual. I'm a full time single father with no other options right now. Could I still drive it in manual until I can figure out what to do?
This is caused often by a bad pcs, it’ll cause too high pressure and the servo will snap the notch off the band
Hi, i have a 2006 Buick Lucern 3.8 V6 that is giving me fits. I purchased it as a "run and driving" car from the auction to give to my stepdaughter. Car has a 120k ez miles on it, starts right up reverse and drives fine. in fwd and reverse, you can feel the gears change ect. Once warm however the trans feels like it is slipping and that gets worse and worse til you are stopped with no motion. Any ideas? does this car have a TCM? i can't find one...
The problem that your having is the filter is clogging up because something is coming apart in the trans, if you install a new filter will probably only last a few days before it cloggs again
Hello, I remember writing to you not to ling ago about losing first gear in an 08 chevy impala. I stated that there were no codes present. No codes ever popped up. I saw it was low of fluid and added a quart plus some trans seafoam. Tonight I drove it around manually. Upon waiting I heard a knock that was felt in the steering wheel. Well I now have first gear back. Hell it even downshifts on it's own. Now that first gear works. It shifts from first to second and now hangs up in second and gets into 3rd. The car will take off in drive. While it's in drive and shifts to 3rd the rpms go up and then it pops outta gear. I have never experienced anything like this. Its is so bizarre and wondered if you have ever in your career heard of anything as wild as this. What is happening with this unit?
My 2006 monte carlo lt 3.5 has no forward but good reverse my car have the same transmission do you think i have the same problem
Yes, very common problem. If you have good reverse, this means the input clutch and sprag are good which just leaves the band
I have a 2008 Chevrolet Uplander only 3rd and reverse gear work. Would that be a shift solenoid ?
sounds like it may be in safe mode, you need to have it scanned to see if any codes are present
Would this also make the uplander not want to shift into drive or 3rd but works in 1st and 2nd gear ? Someone told me the problem is this: Pressure Control (EPC) Solenoid is that possible or more or not at all. Thanks
Is reverse ok?
Could a damaged forward band cause the drive mode to fail but not 1 or 2 (2007 grand prix)
Depending on how the band breaks yes. If you have no Forward in Drive but have reverse it is a band problem
could you tell me if there is a way to improve performance?like a performance build
Honestly not sure on this one, There are a few companies you could look into that supply performance parts, Circle D transmission or a company called Alto
I’ve got an 07 Grand Prix GT- left work last night, reversed, shifted to drive and accelerated. Heard a pop of sorts and then drive and third wouldn’t work.
I have reverse, 1,2, and if I get to about 30 in 2, I can manually shift to 3 and D, and feel it catch.
The shift cable is still attached, slightly loose, but visibly cranks through each gear.
Could this also be a band issue? Or maybe an electronic one?
Did you figure it out my impala is doing the same as yours
@@joewheeler7527 ended up having to get the tranny replaced. Don’t drive it anymore, you can probably get it done cheaper than me, I kept driving it and fucked it up more than it was already
It appears mechanically my 4t65e-hd doesn't have mechanical issues. If I unplug the harness from the trans and shift it manually I have all the gears and it accelerates fine in all gears. Plug the harness back in and I only have R,1&2.
Would it be safe to assume it's a solinoid, or valve plate, or selector switch? I'll probably replace them all.
Any codes present?
I read somewhere that if all else fails, cut the brown wire. Brown wire is for like torque converter something solenoid. Im about to cut that brown wire and see what happens. I will disconnect the harness from the trans first like you mentioned. This might be electrical.
@@robertdinero2853 Do you have no forward?
@@GaryFerrarolast I remember was my forward was there, but would never shift. Like if it only had one gear. If I stepped on the gas, I would pick up speed along with the rpms, but never shift.
@@GaryFerraro I been trying to figure out which inexpensive code reader is the best. After a certain value$$$ I might as well just replace the valve body, valves, plate and gasket and skip the code reader.
My 05 Buick lesabre has this transmission model and today would no go into any gear besides reverse. Does this sound like a broken band? Thanks in advance
yes, sounds like that band is broken, did this happen suddenly?
Gary Ferraro yes! Was on way to Mother’s Day dinner with the mom. Stopped at the store and when I got in car to leave that’s when it started.
@@mike407r Sounds like a broken band, thats what usually happens, no warning signs
Gary Ferraro thanks!
Hi Gary I have a problem with my 2002 Chevy impala I put in drive reverse and it won't move in any gear
Does the car hold in park? Did this happen suddenly
Gary Ferraro yes the car holds in park when I put it in a any grear it just revs the car was running good I was cruising around stopped to get gas n next thing you know I'm towing the car home everyone says I need a transmission
@@reneestrada3236 Certainly sounds like it, something either broke inside the transmission or the converter stripped, either way may have to come out. No fluid leaking? any noises when you select drive or reverse?
OK Gary I was driving my 07 impala and it stopped pulling all together I pulled over and it won't go in to any gear what is the problem?
Do you have reverse?
@@GaryFerraro I have the same issue. No reverse either. Park holds
@@philreichert does this move forward in neutral?
Hi there great video, can very low transmission fluid also cause the band to snap?
Well, if the engine revs and bangs into gear it may yes but it's generally due to the amount of band travel and a malfunctioning EPC solenoid
Yes that's exactly what happened
John Conner reverse is ok?
Reverse and manual low work
John Conner certainly sounds like the band snapped. This happened suddenly?
If the rolling clutch don't lock when turning clock wise will that cause no forward
If your speaking of the input sprag, i would say yes, this clutch is also on in reverse, how is reverse?
What is the part number for the sonnax apply pin thank you
sonnax # is 84571-01K
Hello do I need a full rebuild if my forward band is broken? 2006 Pontiac grandprix gxp v8 5.3
Well, you pretty much have to pull the whole trans down to replace the band and it is very common for the 2nd and 3rd clutches to wear out, if you are going to keep this car i would say yes to an overhaul
@@GaryFerraro ok and thanks. I'm going to add a shift kit.. would a bigger or better torque converter be recommend?
@@GaryFerraro yes I'm planning on keeping it
@@TheCoolestt1 May want to go for an overhaul, how many miles?
@@TheCoolestt1 Regular converter should be fine unless you want billet, I have never done a shift kit in one of these units
2000 impala does not move in drive but works manually.....i changed all the soleloids and the same? Any ideas
Vicente Henriquez Reverse is ok?
@@GaryFerraro yes
Would the band be the culprit with no forward in drive but moves forward In Manual 1 and 2?
Yes, that is exactly how they present.
Is this repair the same cost as a transmission rebuild?
Shouldn't be as much if just doing a repair but may be close, trans has to come out and all apart
So I need your opinion my friend so my Pontiac g6 gt coupe has the 4t65e transmission and it will work perfect in reverse will not work in drive but will work in manual mode but car does not take off fast like it will not go until i hit about 15 mph but once it does hit 15 mph it goes through all 4 gears I even drove it done the highway just fine but remember this is in manual mode not drive and once I hit a red light and I try taking off again it hardly goes at all until it hits about 15mph then it picks up speed, could this be the oil feed pipe? Not sure if thats what its called but its right by the transmission filter those pipes im hoping thats my issue. Does it sound like that to you?
sounds to me like a broken band, if reverse is good, that would eliminate the forward clutch and sprag, Don't really see problems with the tubes
@@GaryFerraro thanks for the video. I was scrolling hoping to find someone with the same issue and here it is. I thought it likely to be the band. Probably caused by a pressure solenoid that has acted up every now and then. It's my sister's car and she described the sudden jumping into gear after a stop now and then. Yesterday she called me stranded and I drive the car home for her and it was doing exactly as this person described theirs. If you shift manually you can get her going and strong in reverse. Put it in drive and it will not move at all.
@@chrismechanic6164 sounds like a broken band if no forward and reverse is good, what type of car?
@@GaryFerraro
2011 chevy impala.
Same symptoms as described in above msg.
Has reverse with no problem but nothing in drive. Will go when shifted manually starting in 1st but slips until you can shift to 2nd. Then it seems to go normal but I was on low speed limit roads nursing it home so I'm not 100% sure it isn't slipping in upper gears. Didn't feel like it was slipping once you got into 2nd gear.
@@chrismechanic6164 If reverse is good, that would eliminate the input clutch and sprag which would only leave the band as your problem. Only other thing you can do is to pull the servo out and make sure the seals are not torn(not very common) band breaking is common
Hi gary i need valve bodyparts like 3 -4 acumulator valve for this tranny and its not available in my country as well as at sonnax transmission parts do you know another source
Hey Gary. My 2010 impala 3.5 only drives in reverse, 1 and 2....does not drive in 3 or drive. Any idea whats going on?
If you have reverse, the input clutch and sprag are good, very possible the band is broken
In my 08 uplander it wnt drive in D gear have to start at 1 and work my way to 3 slowly broken band?
Yup, servo pin over-travel means that the pin slams the band and force / momentum does the damage! 'Thanks' GM! Too bad all the guts have to come out just to get the band out. New pin installs with the servo cover off, so you need to get the tranny out of the subframe for clearance!
Yes sir, just did one with the usual broken band
@@GaryFerraro Is there 'only' 1 band to worry about? or?
@@mmpiforall5913 There are 3 bands but the 1-2 band is what to worry about
hello Gary i have a 4t65e that when you come to a stop and take off it bangs in to gear i replaced epc already any idea
ok, first are you sure this is full of fluid? On these units i always "overfill" them by half quart or so this way i know it's full. Any issue in reverse?
@@GaryFerraro yes I double checked
@@GaryFerraro no issues in reverse
@@hemi.210 If no issues in reverse, this would eliminate the input clutch and sprag, which would only leave the band. To double check the fluid level. When the car is cold(first thing in the morning)do not start the car. Pull the dipstick out , wipe it clean and check the fluid level(car not running) If it's 2 1/2 inches above the full mark then the trans is full, if below it;s not full, easy to do. The one i had read full but was 3 quarts low on fluid, as i was adding the level did not move until i added the 3rd quart, if it is full, then i would say something with the band or the piston the applies the band
@@GaryFerraro added fluid still didn't work it drives fine till it gets hot then you come to a stop and get the bang on take off
These transmission 4t65e I am on my second unit and that just went “pop” tonite.... Why does GM build subpar trans
What happened to this one, no move?
Great vid gary
Thank you
How about no reverse on a 07 Chevy impala?
Does it move forward in Neutral by chance?
@@GaryFerraro yes forward n neutral just no reverse
So it does move forward in neutral?
@@GaryFerraro no not in neutral
@@javierochoa432 No Reverse is not common on this transmission, there is a band and the input clutch applied, if it moves forward that would eliminate the input clutch. Never really seen issues with the reverse band but it's either that or something broke or stripped inside the trans. When you select reverse do you feel an engagement?
I was wondering if someone could help me try to figure out what shop I should send my car to. Transmission shop or mechanic shop because I inherited my grandmother's 2004 Pontiac grand prix gt with 55k miles and I drove it home and it drove like brand new! I drove it a couple more times and parked it for about a month. Well when I got into it I had no forward gear. Manual first would kinda work. Now I noticed mice had been chewing on the insulation on the upper hood and back towards firewall. But I'm not noticing wire damage. Could it be a broken wire causing the problem?
How is reverse and in drive range no forward at all?
@@GaryFerraro reverse works fine but it does slam into it a little harder than usual. And in drive I feel it just slightly engage but doesn't really wanna go if that makes sense. All manual gears are the same as drive except 1st it engages fine and has good drive.
@@tallantballer45 Sounds like the forward or the 1-2 band is broken. Where are you located?
@@GaryFerraro in Oklahoma
@@tallantballer45 ok, i do not know anyone there, thought maybe you were near me
I thought it must be a rule that car UA-cam videos had to start with "Hey, guys, what's happening?" Thank you for not, first clue someone smart was doing this video.
I think, repeat, think that the broken band is no forward in D or 3 but 1 and 2 work. And reverse, of course. I think you imply that below in the comments. That's the situation right now in my 2000 Regal GS and I derive my conclusion from the official GM shop manual. When I drive in 1 or 2, there are also some "bangs," hard moments as it tries to make nice, up and down shifts. Attempts at getting the right line pressure with the messed up band servo?
What's weird is that for several months I've been monitoring and analyzing some noises. A bearing like noise in D, drops when in N. Drove fine, no increase in noise with increase in RPM. But the bugger was an intermittent bad noise in reverse, almost "clanking". Now with the presumed front band bad, no noise. Or, maybe it's just in a behaving good boy phase.
As this car has 187,000 miles on it, the previous and only owner obviously never changed the fluid (I did not long after buying in May) I'm thinking of just doing a factory rebuild swap like from Rock Auto. Dyno tested, 3 year parts and labor warranty. I lean this way also because my extended family history of shop rebuilds on 3 vehicles is 0-3 success rate. Obviously, this reflects poorly on the likes of you, but that's where I'm at.
I grew up in Huntington. Have a good holiday, sir!
Good morning Gary what's the plastic dam is for in the transmission between the planetary is it need I accidentally broke it some told it's not needed
hi gary
are you fimiliar with 6 speed kia hyundai trans
I,ve done a few repairs on them, any codes?
Gary Ferraro i just want to have a few info on them do they have a common issue
The internal harness goes bad, gives solenoid codes, the harness is a 2 piece harness, i've done a few of them.
Gary Ferraro do they require a special tool to reset
i use my snap-on scanner to clear codes, im sure i could reset adapts if needed on this unit
My 4t65e only drives in first gear what would cause that
Very possible the 2nd clutch is bad, on this trans with out second , there is no 3rd or 4th. Are there any codes present by chance?
Please help. 2000 olds silhouette. Lost drive. Reverse is cool. I have to start driving in frst then shift like a manual. After 20 mph it drives normal. No shaking no vibration, fluid is pink , not over heating . Idk you seem to know ur craft. I seem to find alotta vids but no real answer I posted the problem on my channel it's 3 short vids . I live in it and Please don't say sell it. Ty in advance
That should be 4T65E Transmission, your band is broken
@@GaryFerraro yep. I dropped the pan
Is it fixable? Junk yard tranny?
tyranny? Auto parts guys can even distinguish brake pad and brake shoes. It's sad in this country nobody want to do shit and nobody wants to either amazing
@@Googstuuf Not really, trans has to come out and all apart
I just rebuilt my 06 impala w 4t65e but now I don't have a firt end overdrive the any body knows what I did wrong thank you
do not understand question, do you have 4th gear?
Where are you located?
New York on Long Island
How can I get a hold of you? I have a 2001 Buick LeSabre with a broken band I'm sure. I would really like to have the work done by you.
are you in the new york area?
I'm in Newark NJ... How can I talk to you about pricing?
my e-mail is gsferraro, send me an e-mail and i can send you my information.
What’s the cause of it
do you mean why does the band break?
@@GaryFerraroyes so basically internal damage
@@GaryFerraroyes
@ yes, usually do to a malfunctioning EPC solenoid, applies band with to much pressure and snaps the band. Plus the servo pin travels about half inch and thats to much
Yes this happens all the time from what I can see. Do you have to tear the whole transmission out to repair this? Mine broke EXACTLY as the one in your video! I do not have the space or patience to pull a transmission right now but that is the only way I have seen repairs such as this done. Is there another way?
If the band is broken, has to come out, no other way to fix
You can just loosen the cradle and drop the cover side alittle so you can access the side cover, you’ll need a jack and an engine support
Hello, I have a 2008 chevy Impala 3.9 about 94,000 miles. Winter is here in NY. I jumped my car, battery died. Drove to the store trans worked great. A couple days later dues to having kids. I swapped the dead battery to a new one. I go to take my impala to the store and it acts like the E-brake is on. I get it on the highway. It takes forever to accelerate with one shift into overdrive. I shifted the car to 1st, it took off in second, moved the shifter to 3rd then to drive and it performed normal once moving. I tried to downshift into 1st going slow of course, does not go into first gear. Did me changing a dead battery really do this to my transmission?
I doubt it, how is reverse? Where are you in NY, i'm on Long Island. is your check engine light on?
@@GaryFerraro Wow Thank You so much for replying this fast. I live upstate in Johnstown NY. So going over the problems. Reverse works as it always has, no issue there. Even from drive to reverse its fast and functional. When shifting to Drive/Overdrive that's when the car is struggling. Rpm range hangs in the 2,500 to 3,000 range while putting a lot of effort getting up to 30 to 35 mph, when you hit this speed you can hear that the engine is fully locked with the gear in the transmission and the power brings the car up to speed as it should. Now, if I start out in Drive/Overdrive and accelerate it's that struggle. When I took my foot of the petal and dropped the shifter down to 2nd, The trans did shift right to second, you could hear and feel it, pushing back on the petal and the car will accelerate faster the being in drive. I should state that while I placed the shifter in 2nd, as the speed increased and rpm range I manually shifted the car into 3rd to which it then shifted as it should, from there up to 4th etc and it runs as if there is no issue. I did start the car in the 1st gear setting, it took off in second. If I accelerate in 2nd and move the shifter to Drive, not only will it slow my acceleration but also the rpms drop and vibration can be felt. While down shifting with the shifter, my foot was off the accelerator on an open road. As the car slowed I down shifted in a safe rpm range to not make the car jerk forward because of the speed. It dropped to 3rd, 2nd yet will not acknowledge that 1st gear is there. This just happens after changing the battery. Never had an issue prior. I truly am both frustrated and baffled.
@@Cnightz ok, question. When starting out from a stop, does it feel heavy like the transmission is starting out in a higher gear like 3rd?
@@GaryFerraro Yes, That's exactly right on the money. It behaves just as you stated. Also, since I missed your question in the first response. There is currently No "Check Engine Light" on. Although I do suspect that there may be one coming on soon. The battery was just changed and I didn't really drive it enough to complete the system checks.
@@Cnightz ok, it sounds like the trans may be in failsafe mode. You should have the car scanned for codes. I never had a solenoid short out on me from changing or disconnecting a battery but at this point have the car scanned for codes, this may give some direction on what the problem is. If there are codes present for the trans, let me know what they are
If you could spend 30 seconds showing the installation of the pin and servo in the transmission that would be great
Sorry about that, next one i get, will do
My 1/2 is good my 3/4 is good but my 2/3 sometimes can be little rough
that could be the direct clutch. If you can get access to a scan tool, look at the T.A.P cells (transmission adapt pressure) Know anyone with a scan tool like snap-on?
@@GaryFerraro will try that there’s no codes or lights on the dash but I can feel it so I’ll try what you said
@@ryans413 wouldn't be any lights if no codes, do you know someone with a snap-on scan tool
@@GaryFerraro Um no I have a scan tool but can only read PCM codes not TCM I can go get it scanned at a shop or something. Those scan tools are expensive
I have 2009 Chevy impala won’t go into drive it will drive in reverse-1st and second wonder could it be the band - no codes at all 110k miles
Broken Band , Forward band
good
Thank you
Good morning boss how are you
I have Bmw 640 Transmission ZF 8HP45 Car no shifting the fault code 420531 voltage supply output stage : short circuit to earth
ok, i'm assuming this code will not clear
Car no drive and no reverse befor one week coming the car same problem i erased fault car okay after one week no sifting
That's exactly what is wrong with my 2007 Chevy Impala I don't know what we're going to do
Did u have a transmission code
a piece of my broken band actually ended up in my pan.....i had no foward gears only reverse....is it common for it to end up in the pan?
Yes. I have seen that
@@GaryFerraro ok thank you
Hello, I have an 06 Grand Prix base 3.8 V6 with a similar problem but it only happens sometimes. Could it still be a broken band?
I would say no, have you checked the fluid level? How often does this happen
@@GaryFerraro I have checked the fluid and it's full and it doesn't have any metal debris in it as far as I can see, it's been sitting since winter started because it started happening as soon as it started snowing. I start it up everyday and make sure it goes forward and backward and it hasn't had any issues but it hasn't been farther than my driveway
Hi, I have a similar problem with a 2002 Lesabre. When I shift into drive nothing the car drives fine as a manual. any thoughts? thanks in advance.
How is reverse? car moves in manual low?