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Squeaking noise during operation.

Tiny
MCLEODR66
  • MEMBER
  • 1990 CHEVROLET CHEYENNE
  • 380,022 MILES
I have a squeaking sound during operation. It really gets bad when there is an overcast or it's raining. I have replaced all pullies and even gone down two sizes on the belt. It goes away for the moment but then it starts back agiain.
Saturday, April 13th, 2013 AT 11:19 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Take the belt off and start the engine, if the noise is gone it's in that system someplace. Either a n alternator bearing, water pump bearing etc. If it has a clutch fan cold be in there as well. Or the fan may behitting the fan shroud if squeak still thee then it's in the engine someplace.
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Saturday, April 13th, 2013 AT 11:35 AM

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