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Sedans Pontiac Grand Prix Pontiac Grand Prix Starting / Stalling Issues
208 messages, Last post on Nov 02, 2009 at 2:18 PM
You are in the Pontiac Grand Prix Forum. Your Hosts are pat & karens
About a month ago I went to start my 2001 Grand Prix and it wouldn't start. Tested for a spark and came up with nothing from the coil pack. I had the coils and the ignition module tested and they were all fine. I also replaced the ECM and the Crankshaft position sensor and it still won't start. Does anyone have any other ideas for me?
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Replying to: bandi_00 (Nov 13, 2008 3:42 pm) |
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I have a 2005 Grand Prix with about 72000 miles on it... I've had no problems with it whatsoever and I actually love it haha Anywho... when I start it, it completes the cycle and sounds like it in fact fully started and is fine but in actuality, it doesn't stay on and I'm forced to continuously turn the key a few times eventually having to pump the gas peddle for it to actually start and stay started... that can't be good for the car right!?... it's becoming a frequent daily hassle so I had the fuel pump replaced and no dice... same old story... After reading through everyones advice I'm going to try cleaning the throttle plate as suggested in message #112... it's worth a try since i can do it myself for virtually free which I like! Soooo I'll definitely update you all ASAP with the results of simply cleaning the throttle plate... I REALLYYYYY hope this is the simple fix to this ever growing annoyance! any other suggestions with some do it yourself maintenance that may help??
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Replying to: ckafriend (Mar 26, 2009 7:35 am) |
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| For anyone that has had a problem with their car not starting or turning off while driving. I had the same problems with my car and finally had the Fuel Pressure Regulator replaced. After I had it done, I haven't had any problems!! It is a small inexpensive part that was located in the front part of my engine. I have a 2002 Pontiac Gran Prix. I hope this helps anyone out there with this same problem. | |
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Replying to: angcan (Apr 01, 2009 10:59 pm) |
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Replying to: bookster (Sep 06, 2008 8:09 am) Thank you John Arenburg johnarenburg  live.ca
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It started as a transmission that went bad. I had it rebuilt by AAMCO and they also replaced the plug wires and fluids while they had it. After I got it back there were issues with shifter interlock not releasing so I couldn't put it in drive without the key override. After the replacement of the shifter assembly and the computer module under the center console I'm back to having the same sort of electrical problems. 1. the Traction control light comes on and stays on. 2. The tach and speedometer will intermittantly fluxuate while driving. 3. The Airbag light comes on. AAMCO after the first instance adjusted a selenoid having to do with the shifter assembly. The problem is occuring again and I want to know if anyone has seen this issue? |
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Replying to: arenburg (Apr 12, 2009 3:45 pm) |
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Replying to: arenburg (Apr 12, 2009 3:45 pm) I notice that my issues also occurs in warmer weather with a high level of humidity. Only once did it happen in the winter and that was after a very aggressive emergency maneuver. A recent post about the tsb I posted in #139 mentions that computer is looking for barometric pressure - which might be why the issue is weather related. While the stall at highway speeds is my greatest concern, I also have problems similar to yours. I'll find that the first start of the day can be just fine. I go pick up groceries about 5min down the road in light city traffic and the second start in the lot will be rough or stall completely. I dismissed this as bad fuel the first time - but not the case. Here is one more thing I will mention. At the same time the engine runs "rough" or stalls when I do get it running it looks like the transmission is resetting or "defaulting" it doesn't shift smoothly and sticks in gear longer than normal. My solution is to the turn the car off and back on and this resolves the issue - so this I think definitely points to a computer issue as well or it would not be so easily dismissed with a restart. I have not implemented the TSB I posted in #139 but will do so in the coming months and will report back. Have a look at my previous posts after you read this. I'm curious to know how many people are having this problem. My work brings me in contact with a lot of GM dealers all of whom are not very knowledgeable about issues with the GrandPrix. The standard response appears to be that the car is "bulletproof" and there are no such issues like the one I mentioned. I'll try the TSB solution and report back any findings. http://townhall-talk.edmunds.com/direct/view/.f103f6d/137 http://townhall-talk.edmunds.com/direct/view/.f103f6d/139 |
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