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Serpentine belts have a self tensioner and if it is too loose then either the belt has streatched and needs replacing or the tensioner is bad and needs replacing. There is no adjustment.

If it is a new belt they do make two sizes based on which alternator you have I guessed on mine and was wrong, it was almost the right size but would slip alot.

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โˆ™ 2011-09-13 05:48:53
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Q: How to you tighten a new serpentine belt on a 1997 Chevy Venture Van?
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