Pontiac Grand Prix

Asked by May 31, 2017 at 01:55 PM about the 2004 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

My 204 Pontiac Grand Prix is now saying reduce
engine power I changed the throttle body now it's
still sayingbthe same thing and it won't acclerate
when I drive over 35mph can anyone help me what
should I do now

2 Answers

115,475

Have the engine trouble codes read and then post them here. Without more information it is hard to say what is wrong.

2,490

My guess is the cam sensor.

Your Answer:

Pontiac Grand Prix Experts

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    Js08016
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    munron
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