Intake Manifold Gasket May Leak Coolant or Engine Oil on GMC Jimmy

Problem Description and Possible Solution

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

Problem Data
RepairPal Verified
Average mileage: 105,000 (85,000–125,000)
7 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 2001
8 people reported this problem
Viewing 1 - 2 of 2 problem details
THE INTAKE HOSE JUST CAME OFF WHILE IN A PARKING LOT THANK GOD. I COULDN'T GET THE JIMMY TO STOP I HAD TO STAND ON BRAKES. IT ALSO HAD A LEAK RAN BAD TILL I REPLACED THE O-RING.
new intake manifold gasket installed