Mechanics

SEPENTINE BELT

1999 GMC Suburban • V8 4WD Automatic • 133 miles

How to change a serpentine belt on 1999 GMC suburban
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Davecincy
November 14, 2010.




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.

JDL
Nov 14, 2010.
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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Tiny
Davecincy
Nov 14, 2010.
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?

JDL
Dec 28, 2010.

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