2001 GMC Yukon Squeeky sound coming from belt area

2001 GMC YUKON
83,000 MILES • V8 • AWD • AUTOMATIC
Avatar
BRADFSD
  • MEMBER
  • 1 POST
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?
Sep 18, 2009 at 5:04 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 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.
Oct 5, 2009 at 11:04 AM