Intake Manifold Gaskets May Leak Coolant or Engine Oil on Chevrolet Express 1500
Problem overview
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.
40 people reported this problem
17 commentsChevrolet Express 1500 vehicles with this problem
7 model years affected
Average mileage: 110,150 miles
(50,000 - 200,000)
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