Formula413

iTrader: (1)

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...

5.7mmImportkilla

It might be a good chance is the belt.. Have you replaced it too?

Formula413

iTrader: (1)

Serpentine belt is brand new, and again no noise with stock compressor.

1 FMF

iTrader: (1)

did you put oil in the new compressor before installing it?

Formula413

iTrader: (1)

Yup. Compressor has not even been run yet, it's the pulley making the noise.

wrencher

iTrader: (2)

Is there alignment dowels on the new compressor to mount it properly to the bracket?

Formula413

iTrader: (1)

I didn't see anything like that, the mounting ears sit right against the accessory bracket.