AC compressor knocking (resolved)
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- เผยแพร่เมื่อ 17 ต.ค. 2024
- 3300 AC compressor knocking/rattling (resolved) repairs: new clutch assembly with pulley & bearing • A/C compressor knockin...
Total cost $99 if you rent or have the tools thanks to my friend TurboKinetics I was able to learn how to remove the parts and replace with new ones here
• Delphi Harrison V5 A/C...
I’ve got a 2011 f150 and thought this whole time it was a timing chain problem, thank you for this video it saved me a lot of money
This is the only information i could find on the web that described my sound exactly, and just as you did, I was getting ready to order a clutch. BUT! I accidentally stumbled across something else that seems to have fixed it, Im not a A/C mechanic by no means so i cant explain why, It was just a fluke that i ran across it. I Checked my Freon level for kicks and giggles, someone had overcharged it in the past. After getting the Freon level back in the safezone, and letting the truck sit a while, it noise has vanished. So i would highly suggest anyone reading this also gives that a look as well. Even if you haven't recently added any. The vehicle I was working on was recently purchased, driven about two months and about 6k miles, then out of the blue this noise started. From what i can understand, too much freon not only causes a pressure problem, but it also causes internal components to reach unoperatable temps which is causing the knocking. Thanks for the video, just wanted to share my findings in hopes it might help someone.
Thanks! I'd refueled my freon yesterday and wondered what was the ticking sound coming from my compressor. Is it too much freon if my gauge says 80? My mechanic was the one who refilled it.
Would the AC work and clutch engage when the Freon was too high? I have the same noise but the clutch won’t engage at all
Thank you for this information! My compressor lost freon due to a leak and never got it fixed or filled back to proper level. Well after the knock of death it’s getting changed just to be safe not sorry..
@@cgillly Yes the clutch would still engage if the Freon is too high. The clutch will not engage if the Freon is very low. Other reasons of a clutch not engaging could be the AC fuse, AC relay or too much of a gap from wear.
I guess I'm missing something. How did you resolve?
Thank you.. I felt like I was going crazy seeing all these 'thank you for fixing my issue' comments. I watched the video twice and didn't see anything being done. Am I blind.. wtf
Found the problem bad AC clutch pulley .
Just needs to swap it out
lowkey i think this just saved me. my cars engine just started knocking. thought it was rod knock but the knock is too the left where all the pulleys are. this sounds close, if not exactly how mine does
I might be missing something, but what was the fix?
I know why!! Apparently ALL rotary vane type compressor will make this kind of knocking sound. The 3 vanes take turns to slide down and contact the cylinder walls to compress the low pressure refrigerant. The type of system works better at higher rpm but noisy at low rpm. That's it!!
Mice make the noise when I have the AC off and it's on the 07 Grand Prix.How do I stop it
Wow! Thank you very much! My compressor on my 94 buick is doing the same exact thing. Your video took me forever to find. I'll check out the link you provided. Thanks again!👍
Kevin Patrick yes sir! Glad this was a help for you. Not many videos on these old cars so I try post when I can because I've been in your shoes looking for help on TH-cam and finding nothing. Hopefully I can do more projects when it's cooler and post them. Be well Kevin.
Kevin Patrick oh yeah one more thing. I started putting my car stuff my other TH-cam channel. RustyLG7@gmail.com should get you there
Carlos Torres Thanks. I'll check it out. I watched the first 10 minutes of the other video that you provided the link for.
That guy uses a lot of shop tools and works on the compressor while it's out of the car. I was hoping the clutch/pulley/bearing could be taken off without having to disconnect the compressor from the car. And I was also hoping it could be done with just a pulley puller, ratchet set, open end wrench and snap ring pliers.
Kevin Patrick it's possible with the 3.3L because that's what I did. I'm assuming you have the 3.1 liter since you have a 94 and I'm not sure if it's doable or not. There is a wealth of knowledge on our cars at www.A-Body.net this forum has helped me big time on stuff like upgrading my suspension to replacing window motors. We have guys with Buick century's and Ciera's packing 300-400+ HP. Lots of help in there for guys like us who really appreciate their old GM A-cars and want to keep them running... or flying. Lots of AC threads on the forum and I even did a write up of fixing my compressor with a ton pics. I'm under the name Moonkilla if you want to have a look around or check out the AC threads. Hope this helps
Cutlass Ciera My buick is the park avenue base model with the 3.8 litre. But I'm almost certain that they share the same compressor. I've already changed the radiator, p.s. pump, idler pulley and serpentine belt. Everything is a tight fit under the hood and the a.c. compressor is at the bottom of the engine (same as your car) so it looks like the only way I'll be able to get to it is from underneath the car. Thanks for the link. I'll check it out.👍
My jeep just started the clicking when AC
Engaged. Is it harmful to the motor/components if it continues to run the AC?
I wouldn’t recommend it. It that pulley seizes it with Ruin your belt
Mine sounds like it's doing the same thing but not as bad I replaced the ac compressor and pulley last year do I need to replace it again
My 2000 Explorer had the oem compressor replaced in 2012 and now the aftermarket replacement is making a similar noise. I’m just swapping out the compressor for a new one since it’s only 4 bolts and a vacuum.
mine does the same thing in my 2008 acura tsx, rattles a tiny bit when ac on but when i turn it off it rattles alot, im assuming it rattles more when off cause the ac clutch isnt putting pressure on it and the pulley is just wobbling
What'd u do
Had a mechanic say this was the tensioner assembly
So what i gota do to fix it if i wanna jus go to a shop ?
i have the same issue but its backwards its makes a noise but goes off when A/C is on any help
U found the problem yet?
Maybe outer AC clutch bearing since it turns when AC is off and the whole assembly turns together when the clutch is engaged. Or an AC tensioner pulley bearing would be worth checking. Pull the AC belt and rotate both the pulleys for the AC (tensioner and compressor un-engaged) and see if you feel roughness in either. Just my 2 cents
Christian, did you ever have an update? I'm experiencing the same thing and would greatly appreciate any additional information. Thanks.
Looks like the center nut is loose ?
I have this exact sound coming from the area where the AC compressor that started once I got my car back from auto shop for new Ac compressor install. Thinking the noise might be from the passenger wheel, axle shaft or the spark plugs knocking. The knocking sound only starts when I begin hitting 50mph, no rattling or squeeking sound just loud knocks with rotation of wheels. Sounds similar but still not sure what it could be. My lug nuts are torqued to spec, brakes aren't loose, suspension has no issues, and had an alignment recently done. Irony is the sound only started happening after having the AC seviced. Could this be my problem? When at idle and revving rpms there's absolutely no sound. Also I've been having really bad gas mileage since the knocking started if that has any correlation with one another.
Turns out the knocking sound went away for a few weeks after hearing loud thumps while driving. Was driving fine with no sound for weeks until the other day a loud humming/ buzzing sound started accompanied with higher rpms. Took it to a shop and found a damaged transmission gear. Not sure if that was the original issue but definitely was an issue with the car. My advice always have a mechanic test the entire system before replacing or repairing anything.
You tell me, my brand new compressor is making this noise too.
Did you get it resolved?
@@mikeprice8307 No, but its ice cold air coming out so i will leave it. But its not so loud like yours. Can't hear from inside the car. But your pulley is wobbly and it needs attention.
@@vincentlee2460 wym not loud like mine?
@@mikeprice8307its rotary vane type compressor characteristics. It sounds like this in All rotary vane compressor. Leave it alone
@@vincentlee2460 mine had no oil. It thrashed.
yes, definitely the AC compressor...you can see it wobbling.
I came to comments to reply that about the pully. You really can see that rock back n forth
I have a 2014 Chevy Cruz and it works perfectly fine but when I turn on the ac it sounds the same way it sounds on ur video but it sounds like if it's coming fro m the motor, could it be the same thing?
Jesus Gonzalez my car is doing the same thing did u ever fix the problem?
did you think it was an engine knock at first? My car just started doing a similar noise and the ac used to get hot and then cold again a little before doing this noise. I'm just wondering if this is my problem too cuz I'm worried I have rod knock but there's no loss of power or any other symptoms
Did you look deeper into your issue. I noticed the other day when my air conditioner was on my engine rattled. Sounded like engine knock. I have been driving around since last night trying to get it to trip off again but hasn't. I was not riding with my air conditioner on. Mine is subtle however I think if I leave it, it'll sound like that. It sounds just like this video.
I have the same issue my a/c just stopped working like the beginning of this week and now it sounds like an engine knock I went to the mechanics they said it was something with my motor 🤷🏾♀️ I don’t believe them because I didn’t explain anything about the a/c they just immediately told me it’s my engine/motor. I’m going to another mechanic to get a second opinion but I’m like 1000% sure it has to do with my AC
@@patriciafrederique1879 ..what end up being the issue?
@@patriciafrederique1879 I hate mechanics almost as much as I hate doctors 😂. They never seem to know what the problem is unless it's like a basic, generic issue (oil leak, blown fuse, etc.)
@@patriciafrederique1879did you ever find out thanks 🙏
What was wrong?
Resolved?!?!
WTF was your resolution?!
Similar problem in my bt50 when I turn Ac on same noise pops up. What was the right solution for those pro
Did you figure it out? My bounty does it
I replaced the AC clutch to fix the problem
Bro my 02 dodge makes the same noise only when driven on cold starts, and only during 35 to 40, once I have driven nonstop for an hour or so it goes away until I let it sit again
how did you end up fixing it?
Fer Gap I replaced the A/C clutch and pulley. The pulley was wobbling and slightly hitting a bolt on the back. Fortunately I was able to keep the compressor on the car for the job and didn't have to evacuate the system. if you need to take it off most shops will evacuate the freon for free. They LOVE free freon they can sell later
I got knocking sound on my 03 gmc sonoma just started today 7/23/19 only when a/c is on,taking it to a a/c certified mechanic tomorrow see what they tell me..
What did they say?
mine mskes this too and ac bows hot
how did u fix it
John Bell hey john see my answer to fer gap 👆🏽