Highter Than Nornal Idle Due to Vacuum Leak on GMC Jimmy

The throttle body gasket may develop a vacuum leak which may result in a higher than normal engine idle. Failed gaskets will require replacement.

RepairPal Verified
Average mileage: (–)
2 model years affected: 1990, 1991
2 people reported this problem
0 people shared problem details
Related Items:
I have a '92 Jimmy 4WD with high miles on it. Seems to be losing oil and coolant. I just replac...
96 Jimmy with auto Transmission leaks between the pan and the case when warm out side and you t...
WHEN I START THE VEHICLE THE ENGINE IDLES IRRATICALLY

Related Content