Engine Size: 2.2L
Refrigerant Type: R12
Country of Origin: United States
My 1992 Cavalier RS AC compressor seems to be leaking oil out the side of it. I cannot find an engine oil leak so I'm assuming its coming from the compressor. The AC still seems to work fine. This car still has the original R12 in it. I hate the fact that its leaking because the R12 works a lot better than the R134 in my other 92 cavalier that I converted over. Is this a common problem with these V5 compressors?
If it is the compressor leaking, I assume I need to fix this soon or the compressor has a good chance of locking up due to the fact its losing oil. I do have a sqeaking noise coming from the engine compartment but I don't know if its the alternator or AC compressor since they one on top of the other.
I see that this site only has a reman compressor for this car. How good of a compressor is it? I'm generally leery of buying reman parts as I have not had good luck with them in the past. Thanks for any info.
I'm not sure which compressor your vehicle has but I ran into a smiliar issue with a V5 compressor from a Pontiac Grand Prix a few years back. The client had put a reman compressor in it (at another shop) and it leaked oil right where the compressor case halves come together (there's a large o-ring there).
The original shop wouldn't warranty it so I looked into it for him. It seems that if the compressor mounting bolts are not torqued down properly the case can distort a little and cause a leak. In his case the symptoms were that he would park the car and overnight he would see a puddle of oil under the compressor :-(
Anyway, what I did was this, I reached up under the car and tightened the through-bolts located right behind the clutch (as best I could). I think I managed to get maybe half a turn on most of them (one or two I couldn't reach). I then added a few ounces of oil and gave it back to the customer so that he could tell me if it was still leaking (the idea was that if it was still leaking I'd put another compressor in it)
Surprise, surprise - no leaks and it worked for years :-) What seemed to fix it was tightening up the compressor through-bolts - hopefully you'll have the same luck :-)
Best & Thanks;
Thanks for the reply. I do have the V5 compressor on this car. The compressor is the original one on the car. Mine has been leaving a few drops of fluid on the ground under the compressor. I will try and tighten up the mounting bolts to see what happens. I assume I will have to evacuate and recharge to add any oil to this system? This car still has R12 in it and I don't know what it would cost to recharge it with this again. Thanks again.
Actually, what cased it for me (pardon the pun) was tightening the compressor through-bolts (that hold the two halves of the compressor together). They have a small head located behind the clutch. It's just a guess but it costs nothing and worked for me :-) It would be a good idea to check the mounting bolts too.
You can add oil to a charged system. You need to have a tool to do it though. In your case I would probably try tightening the bolts and if that works (or seems to) then just take it to a decent A/C shop and ask them to install a couple of ounces of mineral oil (r12 oil) to the system and remind them it's under pressure :-)
If all goes well you'll have a cheap fix.
Best & Thanks;
you have 2 92 vintage cavaliers? and the a/c works on both? you are a dedicated car guy. i don't think there are any left in MN from that era.
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