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Question about AC compressors, having some issues

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Old Aug 2, 2011 | 03:39 PM
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Default Question about AC compressors, having some issues

I'm replacing the AC compressor on my car and I'm running into a problem. I've put two different compressors on there, brand new (not reman), different brands, and they both have the same problem. As soon as I start it up the pulley starts squeaking. It sometimes quiets down a little as I drive but the next time I drive the car it comes right back. I can put the stock one back on (replacing it due to it leaking) and no noise at all. I can't believe two different brand new compressors could have the same problem. Is it normal for this to happen? The only thing I could think was that maybe the noise would go away after a few engage/disengage cycles of the clutch, does that make any sense? Just want to make sure I'm not missing anything before I R&R the compressor for the THIRD time...
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Old Aug 2, 2011 | 03:51 PM
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It might be a good chance is the belt.. Have you replaced it too?
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Old Aug 2, 2011 | 03:54 PM
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Serpentine belt is brand new, and again no noise with stock compressor.
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Old Aug 2, 2011 | 09:54 PM
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did you put oil in the new compressor before installing it?
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Old Aug 2, 2011 | 10:25 PM
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Yup. Compressor has not even been run yet, it's the pulley making the noise.
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Old Aug 2, 2011 | 10:37 PM
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Is there alignment dowels on the new compressor to mount it properly to the bracket?
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Old Aug 2, 2011 | 10:46 PM
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I didn't see anything like that, the mounting ears sit right against the accessory bracket.
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