2004 Pontiac Grand Prix GTP Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 Pontiac Grand Prix GTP

2004 Pontiac Grand Prix GTP Problems

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.
Inspect transmission/fluid every 30,000 miles

You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be completely flushed.

Serpentine Belt Tensioner Pulley May Wear Out

The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.

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2004 Pontiac Grand Prix GTP Questions

I need a ecm and the labor done for a good price...Where can I go? (1 answer)

The dealership wants $910

Random 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&...

Not passing smog test, Under the engine cover is a rubber tube not attatched (1 answer)

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2004 Pontiac Grand Prix GTP Reviews

Bought this car with 22,000 miles in 2004. I love my car, would never trade it in, unless I could get another one!! Starting to need some repairs (150,000) but nothing out of the ordinary. I hope this one runs forever!!! My sons are constantly arguing who will get the car when I can no longer drive, LOL!
wonderful car!!! i can not say more than that, it is a great car
This is a fast and fun car. I have the comp G package.

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