Intake Manifold Gaskets May Leak Coolant or Engine Oil: GMC G25/G2500 Van Engine & Powertrain

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.

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GMC G25/G2500 Van vehicles with this problem

6 model years affected

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Intake Manifold Gaskets May Leak Coolant or Engine Oil on GMC G25/G2500 Van

Problem overview

GMC G25/G2500 Van vehicles with this problem

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