2000 Grand Prix GTP - Engine Troubleshooting


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2000 Grand Prix GTP

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Auto Repair Home>> Automotive Repair>> Engine Troubleshooting

emt7614
New User

Dec 2, 2007, 12:14 PM

Post #1 of 3 (1381 views)

2000 Grand Prix GTP	Sign In

I have a 2000 grand prix gtp 3.8l v6 w/ super charger...I have fuel, i have a new battery.....I can start the car, it will turn over and run for exactly 5 seconds and then stall out....I have replaced the battery and all fliuids...the fuel pump is working fine...any ideas????

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 3, 2007, 3:07 AM

Post #2 of 3 (1361 views)

Re: 2000 Grand Prix GTP	Sign In

I would watch the fuel pressure which probably drops too low after a few seconds. Just a guess,

T

mtnagel
New User

Dec 7, 2007, 10:29 AM

Post #3 of 3 (1351 views)

Re: 2000 Grand Prix GTP	Sign In

Sounds like the same thing that happened to my GTP also with a supercharger. I took it to a garage which they initially told me it was a fuel pump, but i think we got screwed on that one. They replaced the fuel pump, then called to tell me they found something else wrong with it, the fuel pump relay, which I think was the problem with it the whole time. They sent it to the dealer to find that problem. Chances are it is a relay.

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