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Pontiac Grand Prix Starting / Stalling Issues

208 messages,  Last post on Nov 02, 2009 at 2:18 PM

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What is this discussion about? Pontiac Grand Prix, Engine, Sedan

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#199 of 208 Re: Still not working... [pat_from_grove] by jessewoo15 Oct 13, 2009 (3:25 pm)
Replying to: pat_from_grove (Oct 12, 2009 6:48 pm) Hey Pat,   thank you for your response. I did indeed try that fix. I used a wire brush to clean up the terminal, the screw, and the frame of the car where they all bolt together. I was initially encouraged because my car started quicker than I'm accustomed to, however it faded within minutes as the car stalled while idling. I spoke with the dealer again today who had been working on it. They test drove it last week with an Ignition Control Module (factory) from a spare engine they had in the shop and they said it never gave them a single problem. After installing my aftermarket part ("standard" brand) it didn't give me any problems after 3 short trips but sure enough, it stalled out again. This is the first time the CEL came on too, code P0300 (random multiple misfires), and the engine was oddly "revving" after a cold start, it would run rough too. They're going to put their ICM back in and let me test drive it for a few days, assuming it doesn't give them any problems. I'll keep my fingers crossed. Replies to this message: pat_from_grove (Oct 14, 2009 2:00 pm) jessewoo15 (Oct 24, 2009 10:15 pm)
#200 of 208 Re: Failing to start/ studdering then stalling [rjp81489] by smv1 Oct 14, 2009 (9:02 am)
Replying to: rjp81489 (Sep 25, 2009 10:33 pm) If your friend believes that you are getting a fuel cut; then I would suggest that you check your fuel preasure with a gauge. the guage will cost $35.00 to $45.00. If you do have low preasure, I would estimate that a new fuel pump will be aprox - $300.00 ..... Good luck and please post your result's....Sergio.
#201 of 208 Re: At A Loss With Similar Issues [05grandprix] by severedstar Oct 14, 2009 (10:25 am)
Replying to: 05grandprix (Oct 13, 2009 12:39 pm) Actually last night on my way home from work on the highway at 60MPH it decided to die out, I was able to get on the shoulder, kick it in neutral, and crank it back up with no problem. That was when my Check Engine Light FINALLY came on. A blessing in disguise! I took it to autozone, a code came up for bad/defective MAF sensor. The ACDelco MAF sensor is around 300, the Cordone brand is 150. Do I really need the ACDelco MAF sensor? I am also going to buy an air filter no worries there. But its double the price of the off-brand, and I know ACDelco is GM made but I don't really have that kind of money to spend right now and I need the car to run smoothly so I don't end up sh*tting bricks on the highway again LOL. By the way 05grandprix, I get 25 MPG right now, but then again I do a lot of highway driving (50+ miles daily). I had my oil changed in Sept, and I get it changed religiously along with checking coolant/power steering fluid levels etc. Ive had the car for 6 years and Ive put 15-20K on it, it's only been the last few months with my new job downtown that I've had to drive so much, but I would still change my oil and everything accordingly. Thank you for your advice everyone!!! I just need to know now if I really do need the ACDelco MAF sensor or if the off-brand is just as good due to $ issues. Thank you! Replies to this message: smv1 (Oct 14, 2009 5:15 pm)
#202 of 208 Re: At A Loss With Similar Issues [pontiacinky] by severedstar Oct 14, 2009 (10:29 am)
Replying to: pontiacinky (Oct 13, 2009 12:40 pm) Oh I feel ya! My boyfriend is going to go ahead and install the MAF sensor (I dont have $ to go to a shop, you spending $811 makes me shudder!), but whenever he drove the car to "feel" the sputters/lurching it ran fine. It ran fine on the highway for him too. But as soon as I get behind the wheel....LOL
#203 of 208 Re: Still not working... [jessewoo15] by pat_from_grove Oct 14, 2009 (2:00 pm)
Replying to: jessewoo15 (Oct 13, 2009 3:25 pm) Hi Jesse,   Too bad that what you did to the grounding cable did not fix your problem, My '99 Grand Prix GT was stalling up to 3 times per day until I cleaned and removed the paint from the grounding point. The stalling stopped immediately and I have driven over 8000 km (5000 miles) in one month since then (I have to drive into Detroit almost everyday for the past 4 weeks and desperately needed to have that problem fixed). Since I did not spend a penny on the fix, I bought an OBD-II analyser (on sale) with the money I saved so that I don't have to run to my friends to check for error or pending codes. By-the-way, there were never any codes tripped after the stalls. The key to see whether your grounding cable is a problem or whether you have fixed it properly, if it is, is to use a multi-meter to check for voltage drop or resistance that should not be there. A consummer grade digital multi-meter costs about $25. It is worth getting if you don't have one or can borrow one easily. You should confirm the engine, therefore all components such as PCM, sensors, etc. are seeing the full battery voltage. The unwanted resistance may be in a different part of the circuit. A multi-meter has many other usages too. Good luck! Replies to this message: jessewoo15 (Oct 24, 2009 10:15 pm)
#204 of 208 Re: At A Loss With Similar Issues [severedstar] by smv1 Oct 14, 2009 (5:15 pm)
Replying to: severedstar (Oct 14, 2009 10:25 am) My daughter's car is a 1997 grand prix and I replaced the MAF sensor with the Cardone brand and it has worked out fine ....Good luck...Sergio.
#205 of 208 Re: Still not working... [pat_from_grove] by jessewoo15 Oct 24, 2009 (10:15 pm)
Replying to: pat_from_grove (Oct 14, 2009 2:00 pm) The dealership replaced the Mass Airflow Sensor and I've been driving it for 2 days now without any stalling issues. Too bad it was after a PCM ($1000) and Ignition Contol Module ($400) and Crank Angle Sensor ($400). If you're having these same issues I'd certainly recommend taking a shot at the MAF yourself. It's very easy to get to and swaps out with a special screwdriver, the parts will be under $200.
#206 of 208 Starter question by olds409 Oct 28, 2009 (10:47 am)
Can I swap the starter from 3.5 engine into a 3.8?
#207 of 208 starting question by olds409 Nov 01, 2009 (12:45 pm)
I just picked up a 20004 Grand Prix GT.My question is.Is there suposed to be a 1sec delay before it cranks?
#208 of 208 Re: Intermittent Starting problems w/2000 Grand Prix GT [neustkg] by docsjeep Nov 02, 2009 (2:18 pm)
Replying to: neustkg (Feb 02, 2008 10:56 am) Did you ever find the root of the problem with your Grand Prix? My girlfriend is having the same exact problem with hers and of course the shop can't find what is wrong because it is not doing it while they have it. What makes it more frustrating for me right now is that she is not near my location so i just can't go down and help her whenever I like. So your experience may help me more rapidly answer the problem in a shorter amount of time. Thank You.

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