The car accelerates without the operator depressing the accelerator pedal. Here were two near miss crashes when the car was being driven in town and accelerated by itself . One incident was when my preganant wife nearly struck a train. *ak the actual date of the incident below is not correct, I do not have that information with me. I do know that the first time was in january of 2004.
2004 Pontiac Grand Prix fuel system complaints
Page 2 of 2: complaints 11 to 12 of 12, newest first, as owners wrote them.
Upon cold startup vehicle will stall, hesitate or surge upon the first press of the accelerator pedal. Computer has been replaced and reprogrammed on prior attempts along with new throttle bodies and stalling no longer present, but hesitation and surging are still present. Service engine soon lamp has started illuminating. Code is p0452 for the fuel tank pressure sensor. According to a gm administrative message to dealers on 4/2/04, "dealers are advised to order fuel tank pressure sensor p/n 16238399 instead of p/n 09377680. Fuel tank pressure sensor p/n 09377680 has proved to be unreliable and it is likely to fail again shortly after installation. Production change to use p/n 16238399 is scheduled for mid-april." dealer will be replacing sensor on subsequent visit.
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