| Whining sound fro GM A/C Air Conditioner compressor on a Winnebago built on a ‘95 Chevy van Chassis?

Whining sound fro GM A/C Air Conditioner compressor on a Winnebago built on a ‘95 Chevy van Chassis?

raptrout asked:


I hear a whining/grinding sound when I turn my A/C on. It goes away when the fan clutch engages the fan. I used a stethoscope and verified that the sound is coming from the compressor and goes away when the fan engages. The engine is a 454 and has two V-belts, one for fan and alternator and a smaller one for A/C and P/S. Any ideas?
Thanks
I looked at the egine again and saw 3 v-belts. One belt powers the P/S pump. This belt was a bit loose. P/S fluid reservoir was at proper level. Engine has 33,000 miles on it.
I looked at the egine again and saw 3 v-belts. One belt powers the P/S pump. This belt was a bit loose. P/S fluid reservoir was at proper level. Engine has 33,000 miles on it.

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One Response to “Whining sound fro GM A/C Air Conditioner compressor on a Winnebago built on a ‘95 Chevy van Chassis?”

  1. jcr on June 1st, 2009 1:27 pm

    the whinning is probably the p/s pump. the a/c compressor doesn’t usually whine….check the fluid in the p/s resivoir.