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2001 GMC Yukon Squeeky sound coming from belt area

Tiny
BRADFSD
  • MEMBER
  • 2001 GMC YUKON
  • V8
  • AWD
  • AUTOMATIC
  • 83,000 MILES
I have a 2001 Yukon Denali and when the engine is cold there is a loud squeeking sound coming from the serpentine/pulley area. Tends to get worse when I rev it up but goes away once the vehicle warms up. The belt shows no signs of wear. Any suggestions?
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Friday, September 18th, 2009 AT 5:04 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
When the car is first started, the alt needs to work harder to recharge the battery. If the belt is good, chances are you have a belt tenisoner going bad. Make sure the belt's tension is proper.
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Monday, October 5th, 2009 AT 11:04 AM

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