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1999 Other GMC Models belt pretensioner

Tiny
SALTONSEADOG
  • MEMBER
  • 1999 GMC
  • V8
  • 4WD
  • AUTOMATIC
  • 15,000 MILES
My trucks belt started squeeling pretty bad thisa week. Spraying WD 40 only helped for a while, and it started again. I am also seeing reduced AC effectivness. Could this be a bad tensioner?
How do I confirm this? Can I replace it myself without a nightmare?
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Friday, June 20th, 2008 AT 11:10 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi:
Yes the tensionier can cause the problem. The belt should be tight enough that you can only move it back and forth about an inch. To replace it shouldn't be too hard. If you need the routing schematic, go to belt routing on this page.
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Wednesday, December 10th, 2008 AT 3:22 PM

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