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 Chevrolet G Series Van (G30)
Average mileage: (–)
Engines affected: 5.7L V8, Gasoline
11 people reported this problem
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1995 Chevrolet G Series Van (G30) - 5.7L V8
The manifold gasket leaks onto the transmition bell housing. I haven't fixed it yet.