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. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
Car Problem Reports
GMC Jimmy Intake Manifold Gaskets May Leak Coolant or Engine Oil
GMC Jimmy Problem
Average Mileage: 105,000 mi (85,000 mi - 125,000 mi)
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.
Visitor, 2001 GMC Jimmy, 85,000 mi
new intake manifold gasket installed