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.
Intake Manifold Gasket May Leak Coolant or Engine Oil on GMC Jimmy
Average mileage: 105,000 (85,000–125,000)
8 people reported this problem
2 people shared problem details
2001 GMC Jimmy85,000Visitor
new intake manifold gasket installed
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.
I have a '92 Jimmy 4WD with high miles on it. Seems to be losing oil and coolant. I just replac...
The past 2 months I had to put coolant in. I just looked and I have to add more. I have found c...