CAR IS MAKING SQUEALING NOISE

  • Tiny
  • ray9191
  • 1998 Pontiac Bonneville
  • 240,000 miles

My car is making a squealing noise every time I drive it or start it

Tuesday, January 17th, 2012 AT 2:49 AM

4 Answers

  • Tiny
  • PROTECH1980
  • Expert
  • 928 posts

First thing that comes to mind is the serpentine belt, have you checked this?

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Tuesday, January 17th, 2012 AT 2:53 AM
  • Tiny
  • caradiodoc
  • Expert
  • 25,257 posts

Can't really hear it over a computer but serpentine belts are a common cause of a squeal. Check it for proper tightness, (with the engine not running of course). Also try dribbling a little water on the smooth back side while the engine is running and the noise is occurring. If the noise changes, pulley misalignment or a worn belt are the likely suspects along with a spring-loaded tensioner that is rusted tight in the released position.

Don't use any type of belt dressing on serpentine belts. Even in the rare event it quiets the noise for a little while, dirt will stick to it making the noise even worse.

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Tuesday, January 17th, 2012 AT 2:55 AM
  • Tiny
  • ray9191
  • Member

Yeah I have check the belt it looks good I thought it might be the pulley

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Tuesday, January 17th, 2012 AT 3:22 AM
  • Tiny
  • PROTECH1980
  • Expert
  • 928 posts

Take the belt off, hand spin all pulleys to try pinpoint noise, Also with belt removed, start car (just for a few seconds) make sure noise is gone, then you have it narrowed done to belt or belt driven accessory.

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Tuesday, January 17th, 2012 AT 3:34 AM

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