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Sepentine belt

Tiny
DAVECINCY
  • MEMBER
  • 1999 GMC SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 133 MILES
How to change a serpentine belt on 1999 GMC suburban
Sunday, November 14th, 2010 AT 5:14 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
There should be a belt tensioner. Once you release tension, you take belt off pulley. The tensioner may have a square cutout, for a rachet drive or breaker-over.
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Sunday, November 14th, 2010 AT 5:26 PM
Tiny
DAVECINCY
  • MEMBER
  • 13 POSTS
The tensioner has a nut in the center. Do I loosen the nut? It looks like the nut holds the tension on
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Sunday, November 14th, 2010 AT 5:52 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Sorry for the late reply, if there is a cut-out in the tensioner arm, view diagram, use the cut-out with rachet drive, maybe a 1/2 inch drive?
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Tuesday, December 28th, 2010 AT 6:06 PM

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