Chevrolet
3500 Pickup
11

Highter Than Nornal Idle Due to Vacuum Leak on Chevrolet 3500 Pickup

Problem Description and Possible Solution

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

Problem Data
RepairPal Verified
Average mileage: (–)
Engine affected: Gasoline
11 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000
11 people reported this problem