Pontiac Grand Prix: Problems & Solutions - READ ONLY

980 messages, Last post on Oct 12, 2006 at 5:30 PM

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What is this discussion about? Pontiac Grand Prix, Sedan

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#961 of 980 Lack of power-Disgusted with Dealer by lkerr Sep 26, 2006 (1:48 pm)
A 97 GP GT. I had the lack of power thing with the surging, bucking, almost like it was stalling but keeping itself going. Took it to a local shop after the check engine light came on. The scan revealed all cylinders misfire. He checked all wires and plugs, no real problems, noticed antifreeze and oil all over the upper part of the engine. He changed the intake manifold and plenum gaskets ($700) no fix. Thats ok cause eventually that wouldve ruined the engine. I changed the plugs and wires, no fix, no problem regular maintenance. Took it to a dealer in Halifax, Nova Scotia. The brakes were working when i dropped it off. They said they scanned it and found it was misfiring. I asked which cylinders, and they couldnt tell me. I knew i was in for a ride. They suggested it could be the tranny, or the wiring harness, or they could start changing ignition parts, and see what happens. I asked about the brakes, and they said it was like that when the service person took it out of the drive through, and they wouldnt do any work unless I authorized it. WOW (Master cylinder completely empty) A car that is now undriveable at the dealer for $75.00 an hour. It cost me $240.00 to get it released and i had it towed to my local shop. The local mechanic, hooked up a fuel pressure meter to the fuel rail and took it for a drive, after he fixed the breaks. Turns out i needed a fuel pump. While we were at it we got a new tank and filter also. Morale of the story do not go to the dealer for anything, unless your under warranty. I wonder if i will buy foreign next time. Good luck to all.
#968 of 980 Re: Hard shift in 99 Pontiac Grand Prix [rwhowes] by debmc03 Sep 30, 2006 (8:27 am)
Replying to: rwhowes (Mar 17, 2005 4:59 am) hello i just wondered how long after you notice the hard shifts that the thing blows? or is it cheaper to get it fixed before that?was yours the sensor or the trans?? i bought this 98 grand prix for my daughters first car.......she doesnt have her license yet and this is very distressing!!!!!!!!!!!! any words of wisdom would help Replies to this message: falster (Oct 10, 2006 10:38 pm)

#961 of 980: Lack of power-Disgusted with Dealer by lkerr; Sep 26, 2006 (1:48 pm)

A 97 GP GT. I had the lack of power thing with the surging, bucking, almost like it was stalling but keeping itself going. Took it to a local shop after the check engine light came on. The scan revealed all cylinders misfire. He checked all wires and plugs, no real problems, noticed antifreeze and oil all over the upper part of the engine. He changed the intake manifold and plenum gaskets ($700) no fix. Thats ok cause eventually that wouldve ruined the engine. I changed the plugs and wires, no fix, no problem regular maintenance.
Took it to a dealer in Halifax, Nova Scotia. The brakes were working when i dropped it off. They said they scanned it and found it was misfiring. I asked which cylinders, and they couldnt tell me. I knew i was in for a ride. They suggested it could be the tranny, or the wiring harness, or they could start changing ignition parts, and see what happens. I asked about the brakes, and they said it was like that when the service person took it out of the drive through, and they wouldnt do any work unless I authorized it. WOW (Master cylinder completely empty)
A car that is now undriveable at the dealer for $75.00 an hour. It cost me $240.00 to get it released and i had it towed to my local shop.
The local mechanic, hooked up a fuel pressure meter to the fuel rail and took it for a drive, after he fixed the breaks. Turns out i needed a fuel pump. While we were at it we got a new tank and filter also.
Morale of the story do not go to the dealer for anything, unless your under warranty. I wonder if i will buy foreign next time.
Good luck to all.

#968 of 980: Re: Hard shift in 99 Pontiac Grand Prix [rwhowes] by debmc03; Sep 30, 2006 (8:27 am)

Replying to: rwhowes (Mar 17, 2005 4:59 am)

hello

i just wondered how long after you notice the hard shifts that the thing blows? or is it cheaper to get it fixed before that?was yours the sensor or the trans??
i bought this 98 grand prix for my daughters first car.......she doesnt have her license yet and this is very distressing!!!!!!!!!!!!
any words of wisdom would help