Car Problem Reports

GMC 3500 Pickup Idling Problems Due to Vacuum Leak in Throttle Body Gasket

 
GMC 3500 Pickup Problem
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Model Years Affected: 1996, 1997, 1998, 1999, 2000

Engine Affected: Gasoline

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An engine vacuum leak may develop from the throttle body gasket causing a higher than normal idle speed. Failed gaskets should be replaced.

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