2004 Pontiac Grand Prix GTP Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Pontiac Grand Prix GTP
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2004 Pontiac Grand Prix GTP ProblemsIntake Manifold Gaskets May Leak Coolant or Engine Oil
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.
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue. RepairPal cannot confirm a recall for this concern on these models.