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Old Mar 16, 2012 | 09:29 AM
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Default A/C Compressor

Hi All. I had A/C compressor changed on 2001 a few months ago. The compressor works well and the car gets very cold. However, at times I hear a noise from the compressor. It' kind of a squeek and is usually heard at startup. The noise lasts for various amounts of time and is heard mostly with the compressor on. Any idea why I'm would be getting this noise?
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Old Mar 16, 2012 | 01:52 PM
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I am thinking the belt might be doing it. Spray something on the belt (I use wd40) and see if it silences it. If not then the clutch on the compressor might be going bad. I know the compressor is faily new but it still might be the problem.
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Old Mar 18, 2012 | 12:31 PM
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Yikes. Thanks. It would not be an indication of low compressor oil or anything would it?
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Old Mar 18, 2012 | 01:33 PM
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Originally Posted by hgoodwiniii
Yikes. Thanks. It would not be an indication of low compressor oil or anything would it?
Could also be the pulley on the tensioner or the idler puller. Common problem, just replaced mine.
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Old Mar 20, 2012 | 09:35 AM
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Ok, thanks. Do you have the GM part numbers for them?
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Old Mar 20, 2012 | 10:59 AM
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GM usually only carries the entire tensioner assemblies but you can get just the pulleys from Napa and save a ton of money.
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Old Mar 20, 2012 | 11:58 AM
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what brand of compressor did you put on? new or remanufactured? from what i've heard, a new Delphi compressor is the only sure way to go. anything else can be a gamble.

that being said, it's most likely one of the other ac pullies or the belt.
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Old Mar 20, 2012 | 09:44 PM
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It was a new AC Delco compressor. Thanks.
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