Chevrolet Suburban 2500 Problem Report

Chevrolet Suburban 2500 Intake Manifold Gasket May Leak Coolant or Engine Oil

(11 reports)

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.

Engine overheated due to loss of coolant x's. Shop replaced manifold gasket and oil switch, but DID NOT change oil. Oil changed at 117797. Engine failed (threw a rod)at 118870. Now I know why! -
at 75,000 miles the intake manifold gasket started to leek. -
had to have the gasket replaced they told me it was a common problem that happens on all 5.7's -
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