Intake Manifold Gasket May Leak Coolant or Engine Oil on Chevrolet Blazer

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: 137,708 (118,543–183,000)
Engines affected: 5.7L V8, Gasoline
10 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1997, 1998, 2000, 2004
15 people reported this problem
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Loss of coolant over heating now milky oil
I have the same problem