2004 Pontiac Grand Prix GTP Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Pontiac Grand Prix GTP
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
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 crankshaft position sensor, ignition module, and/or powertrain control module (PCM) may fail resulting in illumination of the Check Engine Light with ignition system related fault codes stored in the PCM. Patience is necessary when dealing with this specific situation as normal diagnostic procedures are not effective. In many cases, the best option is to replace parts, one at a time until the fault is corrected.
2004 Pontiac Grand Prix GTP QuestionsRandom Cylinder Misfire and engine stuttering (1 answer)
When I am driving down the road and I get on the gas the car shakes. If I keep on the gas the check engine light will flash. I've already replaced the spark plugs and wires. This occurs all the time. Also I've notices lately that when I start my car sometimes it has problems starting. It&...