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2002 GMC Savana 3500 Question: What makes my box van give off loud vibration ? When in gear an hold the brake?

 

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box truck, 5.7L V8, Houston, MO, March 30, 2013, 11:02
 Rookie

Increasses when heat or air is on and lowers in park.

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  • Answer #1

    arturo08 March 30, 2013, 16:37
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     Master

    be some thing run by belt. failing pully kit or failing component.

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