My 2000 Pontiac grand prix cranks up strong but shuts off after about 3 seconds. I had a brand new fuel pump installed and the car ran fine and i was able to drive it around for a while.

Reggie Ceoofmightymenmovers Dabassa

Asked by Jul 16, 2015 at 11:58 AM about the 2000 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

Check engine light came on when I
was driving for the short period of
time but the car shows no codes. The
fuel pressure is normal but drops
down when the car shuts off. I had 3
mechanics check it out but can't
figure it out. I just want it fixed can
someone help?

1 Answer


Sounds like your security system might be shutting it down although any competent mechanic should be able to diagnose that (and that doesn't explain the check engine code). Try a different key. The chip in your current key my have been damaged somehow.

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