1998 Pontiac Grand Prix GTP Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1998 Pontiac Grand Prix GTP

1998 Pontiac Grand Prix GTP Problems

Water Pump May Fail Prematurely

The water pump may develop a coolant leak resulting in an engine overheating condition.

Intake 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.

Noise from front section of supercharger
The supercharger may develop a noise in the front section of the supercharger assembly. The is due to a worn coupler. Our technicians tell us that a remanufactured coupler section is available from aftermarket suppliers.

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1998 Pontiac Grand Prix GTP Reviews

Really great car and super fast when you have the need for speed. I even beat benz's and bmw's on the straight-aways.
Great Car picked mine up with 30,000 miles on it. Have only had minor issues as wiring, Lights, Battery, Wheel Bearings. Would recommend this car to anyone that loves a fast smooth ride that 3.8 motor is great. If you have the GTP I would recommend PFYC.com they have great parts for upgrading your ride.

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