You Won't Believe How Easy Ac Diagnosis Can Be!
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- Опубліковано 29 вер 2024
- In this video I'll show you how you can diagnose a slipping ac compressor clutch due to bad bearing, seized ac compressor, weak compressor coil, corroded wiring or connectors but also why you get cold air at high speeds or why you only get cold air at high rpms. I'll share with you which condition is due to a problem with your AC condenser fans and which one could mean you have a weak or bad ac compressor or are low on refrigerant.
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Due to factors beyond the control of Ratchets and Wrenches, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Ratchets and Wrenches assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of my repair video's. Due to factors beyond the control of Ratchets and Wrenches, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again Any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in this video is the sole responsibility of the user and not Ratchets and Wrenches.
Voltage drop would be a great review. Thank you for sharing.
My man!!! Back in the saddle again!!!
Yes, please do a video about voltage drop testing, and related info. Thank you 👍🏻👌🇺🇲🔧(I have no problem receiving notifications from you on you're channel 👍🏻)
He just did u bet its cus this comment nice
Best intro ever.
I have a problem with a 1983 Chevy pickup's dual fuel tanks that are dirty which effect the carburator and shuts down the engine.
Do you offer mechanic services? I am in Los Angeles, California.
Richard
Thanks for this, I drive a rav4 2013. When the AC is on the passenger vent blows cool air while the driver side vent blows hot air. Secondly, I hear a grrrh sound from the compressor when the AC is on too. What could be the likely cause? Thanks for assisting.
Usually an undercharged system will do this
The passenger side is usually first in line to get cooled through the evaporator. When the refrigerant is low there won't be enough cooling capacity to do the driver's side as well. Just buy a can of appropriate refrigerant WITH the gauge attached. Put the refrigerant in PER THE INSTRUCTIONS you'll probably see a difference. Next you'll need to determine why the system was low.
@@dalebabbitt6185 thanks, found the leak on the evaporator. I have recharged the compressor and is working perfectly well.
@@adeniranomitayo3343 Very good!!! Did you replace the evaporator?
@@dalebabbitt6185 yes, I did
so I have a noisy ac compressor when it's on. blows cold but just makes a lot of noise. no sound when off. should I try and replace clutch components or just get whole thing done? $800 job around here. gx470
💯✅💯✅💯✅💯✅
California can't turn down AC to low right now or charge their electric cars. 😄👎🏼
Great video. I had a 2002 Ford Ranger XLT (bought used) and when I would be driving, the AC would cool great. When I would be stopped (Stop sign or light), the cooling would noticeably be reduced altho still be putting out cool-ish air (65 degrees). A thermometer in the center vent confirmed this. When I would start moving again, the temp in the vent would drop to 40 degrees. I assumed I was low on refrig. (I had checked my condenser fan before). Not having a gauge set, I looked for other possible causes prior to taking it to a repair shop. I noticed that the gap between the clutch and the compressor pulley was rather wide. A UA-cam video showed that the gap should be about a business card thickness. Mine had a 3-4 card thickness gap. Took the pulley off and there were two spacer washers (shims) on the compressor shaft. Removed them and reattached the pulley and the gap was then a card thickness. AC worked fine for several years after!
I believe you mixed up the port sizes I believe the smaller hose is the high and big one is low if not mistaken.
Even if you aren't a do-it-yourselfer this video is useful to keep an unscrupulous repair shop from screwing you over.
Loving the new videos in the new shop! Great lighting 👍
So glad you have returned to making videos!!
That seems like a audi compressor, lol. Speaking of audis. My 01 s4, i topped it off. I have some Mastercool gauges from Amazon nothing too crazy $130. So when I topped it off it was 35 low side 240ish high side on a hot day, about 90. It worked pretty good about 44° on Max cool. About 2 weeks later it started acting funny it would take time for it to start blowing cold air. I turn on the AC and the pump goes on but it would blow hot air. After about 5 minutes of driving around I hear a door open under the dash and now it's cold air. But unless it's on lowest setting it eventually turns back off. Then if you put it back to lowest setting it'll eventually turn back on after you hear a flap opening. I have not rechecked pressures to see if there is a leak. I kind of just jumped the gun and asked a question, lol. Would you think this is a leak or a internal flap issue?
Thank you for this video. The AC in my Camry was blowing hot. One $50 can of refrigerant w/gauge fixed it in 5 minutes.
I've also had luck with AC in a can.
If your adding so much refrigerant, that means you have a big leak somewhere. I start with soapy water, windex etc. and spray all hoses and fittings, sometimes it’s easy to find the bubbles. If that doesn’t show anything then use a dye mixed with refrigerate. I’d Start with the easy method, hope this helps
I think your account is hacked. Look at the reply (from you) when I commented on your previous video on this LS.
How’s it going duty sulfurs lol. That’s what I always hear
Hello sir, i am from Tanzania (i want to ask something regarding clutchless (variable displacement compressor) why do these clutchless compressors fails early compared to old fixed displacement compressors with external clutch?
Here in my country it has reached a point when a variable displacement compressor dies, it is replaced with fixed displacement compressors.. although this conversion is making engine to experience increased ac compressor load..
Pressures shown are for r12 or hfc134a or 1234yf????
Great explanation on voltage drop, really enjoyed your video 👍
I know a lot more now than I did before! Thanks :-)
I enjoy your experience you share... Good lesson
We can ALWAYS use a good video on voltage drop. Thanks
When new, the clutch is most likely impossible to turn without the three-pronged spanner tool. (Similar to what is used to open some watch backs.)
**question** 04 maxima 3.5L 172k mi, injectors were clogged (poor fuel) replaced all 6 (from stealership) week later p0175 LTFT (-25 bank 2) (-21 bank 1) also replaced 6 plugs and 6 coils ...please help 🤷🏾♂️
I have a problem with my A/C where it doesn’t cool at all on startup even if I leave it idiling for half an hour. However, as soon as I drive for a couple minutes the compressor engages and the ac gets very cold. My car is a 2015 VW Golf GTI, could this be a bad sensor or is it a bad compressor? Because it also disengages and blows hot air over 75 MPH for some reason and doesn’t re engage unless I slow down and turn it off and back on.
2:04 - IF you can't turn the clutch, could that equally be that the clutch is seized and not the compressor?
You'll Never Look at AC Diagnosis The Same Way Again
How long can you keep you pristine table top looking good? Great video. Thanks.
Didn't see any of your videos in my feed so I just watched all the new ones. Don't like notifications so I'll just keep checking back.
How know oil, gas, are in system? How test TX valve. Why we buy expencive tool, if is easy like this?
My Jeep CRD ac seems to work better at idle than highway speeds. What's up with that?
This is awesome. Thank you for the video!
hes alive
7 years ago we got our Honda Accord and I think it was in an accident and had been repaired and repainted on one side. The paint that is clearly not factory is now faded and feels rough. Is it possible to wetsand it and respray it with 2k clear to fix it or does it need to be stripped and repainted?
LOL...I dread leaving the house and my dogs go out just to to do their numbers.
Thank you for showing us great videos. Last year I took my chevy sub to a shop and they added the freeon into the a/c system but the a/c only lasted about six months.My Chevy suburban no longer blows cold air. What do you think can be the problem?
Most like a leak and the freon eventually leaked out. Sounds like a small leak and.most likely the shrader valves, where they attach the gauges or add freon, are leaking. Those are cheap to replace and very easy.
Thank you
How’s it going duty sulfurs lol. That’s what I always hear
Come on mr. avocado farmer - some vehicles still have a mechanical fan... 😋
Great!
Now how do we safely clean our radiators? Lol
1 million subscribers. Congrats 🥳 🍻
Thank you. Good clear explanations.
With a 17yr old vehicle with working ac system would it be wise to replace compressor before it does go bad and shoot debris into system? New compressor $150 versus flushing entire system with no guarantee that system is clean?
If it's not broken, don't fix it
i drive a 2004 Honda Accord V6. my ac makes some cold air when im idling (and more out of the driver's side on the dual system) but when i go down the road it makes a lot less cold air. i added some refrigerant to the system and stopped adding when the dial on the refill said i was halfway in the green. a coupole of minutes later, while it sat and idled, the overpressure pop off valve popped. took it to the shop and had the compressor replaced but it still doesnt get cold... it seems like if i put enough refrigerant in it to make good cold air then it gets overpressure as it heats up. the ac fans dont kick on soon enough and it builds too much pressure. then when the fans kick on it cools it down so much that there isnt enough pressure to make cold air. i feel like the fans should be kicking on and off more. if they did then it wouldnt get so hot and then get to much pressure from heat expansion and it would have enough to make cold air. what the hell is wrong with it? could it be the fans temp controller? any help would be appreciated since the shop i took it to said they couldnt find anything wrong with it so it "must be working like its supposed to." but its supposed to make cold air and doesnt, even when rpm is raised and especially doesnt when going down th road.
Is there any chance your blender door has malfunctioned? If it's stuck in the wrong position you won't get cold air even if the system itself is totally fine.
Your videos are great good knowledge
KNOWLEDGEABLE Ratchets and Wrench
My teacher
Please do voltage drop testing 🙏 please
Thanks👍
Thank you very much for sharing what you know with us Take care and have a great Evening
KNOWLEDGEABLE Ratchets and Wrench
From Nick Ayivor from London England UK 🇬🇧
I want to see voltage drop tests, thanks
I recognized that car when you showed the location of the high side 'hot' output line....that's a Honda! The layout is identical to my 5th gen. Accord LX. I happen to need to service my A/C. I have a high side leak at that hose junction on top of the fan. It's leaking from behind the fitting nut. I assume it's an O-ring. Can I replace the O-ring with a proper R-134a compatible one? Are they available at an autoparts store? I have my own gauges, and just need to 'rent' a vacuum pump.
OMG, did you loose weight? ... You’re in good shape...nice 👍👍👍👍👍👍. Thanks for the AC tips
Thanks for the video. Is it possible for the AC pressure switch to cause the high speed of the not to come on? My AC turns on but the high speed never comes on and this problem started when water got into one of the three relays which was later replaced. I've changed resistor controlling the high speed as well but no solution. Could it be caused by a blown maxi fuse or pressure switch or the fan unit itself is faulty? I will really appreciate your response. I also read somewhere that the intake air pressure could also be responsible but I find it hard to believe, maybe because I'm not too knowledgeable about how the system works. I drive a Peugeot 406 with ew10 engine if that is helpful.
Wow 1000000 subs!!!
I enjoyed the information, thanks.
👍👍
Hey 3x!
Yes, please make another video on voltage drop testing. I need improvement on that skill.
Very helpful information! Thanks
Yes, please do a video on how to do a voltage drop test, Thanks in Advance
My Yaris' A/C blows warm when I am waiting at a red light in drive, I place it in N and then it works better, but not as cold as when the car is moving. Freon level shows full, some tech told me I need a new compressor but I am doubtful cause as long as the car is moving along, the air is cold enough.
Is your electric fan working? Is the AC condenser missing finns? (stone chip, rotted out,...)
@@lukasmeyer1992 Fan works, it just seems to stop cooling when engine speed drops at idle, when drive is engaged. If I put it in N or P then it's ok. I do hear the engine RPM increase when the compressor kicks in, so I know it's not the relay. BTW, that car only has one cooling fan, not 2 like most other cars do.
@@pedrofernandez8729 The electric fan on a yaris should spin when ideling, if the AC is on.
@@lukasmeyer1992 Yes it does. It 's always on except when I first start out in the AM. Very hot in So Florida
Great Video, very informative!
With a properly working AC system on a modern R134a system, what vent temps do you expect to see?
40-47* degrees F.
However on older R12 refrigerant systems can get colder between 33-39* Farenheit depending on what vehicle
Yes do a voltage drop test video please
Can you add oil to the compressor by unscrew the bolt for the oil without vacuuming the system?
You can charge a system with oil if you have a gauge set or injector
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Great info! till you get a 2018 Honda Accord and can’t use the AC gauge on dealer only H & L ports gonna try the rest of your suggestions and see if I can figure it out. I’m in CA too Cold days the AC blows cold and works fine Hot days like what we’re experiencing rn it takes time to get cold and its not cold it’s like slightly colder than room temp or doesn’t get cool till I’m driving. That bolt on the front of the compressor apparently fell out and the mechanics we took it to put it back in with thread locker and recharged the system. Previously it wasn’t working at all till they did that now it’s doing what I stated above.
What a broken honda? Didnt think it was possible 🤣. Well that sucks. Seems they are shutting DIY ers out of fixing their own, BS.
@@easycomeeasygo8901 😂 yeah tried to do it myself then took it to 2 different guys that I usually get my AC done by and they couldn’t do it the 3rd guy some how had it. Called Honda they only cover a condenser for warranty as long as a rock didn’t break but they wanted to charge $400 just to diagnose lol
@@jayvalentin018 wow thats expensive. So then its all set? What was the problem in the end?
@@easycomeeasygo8901 I think it’s the compressor cause like what he said in the video when you spin it it’s supposed to have some type of drag and that shit just free spins checked a couple other compressors on other cars and you can tell the difference.
What if I have a leak that is not able to be found? I have a 98 Jeep Grand Cherokee that refrigerant leaks out in two days. My friend is doing shop classes and I let him borrow it for their A/C segment. Under vaccum there were no leaks, they used a sniffer that could find no leaks except under the driver floorboard. They did this with it on and off. The shop teacher even was stumped
And they didnt put uv dye in it???
It's may be the Evapoorator
The vac test doesn’t always show leaks. Neither does a micron gauge. See ScannerDanner latest video on AC. A sniffer should find it. For the evaporator, you have to put the sniffer at the evaporator condensation drain pipe.
Sounds like an evaporator leak, hope this helps
Your ac system needs a new jeep maybe something from this century
I recently added some more coolant to my AC system and now it makes a weird knocking noise
I think that might be from adding too much. It's easy to do unfortunately... Is your compressor shutting off rather soon as well?
@@Francisco-Danconia Yeah it does. I was thinking the same thing. Seems to be happening less now that maybe I’ve used some of it up.
@@ninjak2647 if you've used it up that means there's a leak... But there are other comments that talk about a pressure valve so maybe it actually did relieve some pressure. Otherwise you'll have to do it manually
@@Francisco-Danconia Yeah, I’ve been just thinking about investing in a vacuum and some gauges to vacuum and refill.
I would love to tinker with a compressor on the bench. To open it and see what it looks like inside