Last post on Nov 23, 2013 at 4:09 AM
You are in the Pontiac Grand Prix
What is this discussion about?
Pontiac Grand Prix, Engine, Sedan
Go to NHTSA to file a safety complaint.
Or call Monday-Friday (8 am to 8 pm ET) (888) 327-4236 TTY: (800)424-9153
#183 of 367 Re: 2002 Pontiac Grand Prix won't start after sitting outside in heat [tamarado]
Sep 13, 2009 (4:25 pm)
we have a 1997 pontiac grand prix gt and had simialar problem until we replaced the cam shaft sensor & crank shaft sensor. The key problem was resolved by a loose wire in the console between the ignition colum; this is an automatic. I hope this help's you.
#184 of 367 2008 grand prix wont start... "charging system failure"?
Sep 11, 2009 (5:41 am)
i have a 2008 GP ... purchased in march since then towed twice... taken in four times and boosted my self at least a dozen... heres the problem...
get in turn the key all i get is a clicking noise (very fast 30 times in 30 sec's) resets clock, date etc... and display says charging system failure, sum times the horn will even go off in the process... sumtimes it will start but still reset the system ... dealer says cant find problem... im now less then 10,000 kms away from b-b warr off the car they say they will " fix " after but i dont trust them....
anyone with same problem? possiable fixes to problem?? anyhelp is a place to start
#185 of 367 Re: Does ANYBODY have these 2 same problems? [trange1]
Sep 18, 2009 (11:14 am)
This is my car!
I sat in the driveway this morning for 25 minutes cranking away.
Then suddenly and unaccountably: perfect start!
I'll be on the road driving along and the engine will die. No fluttering before hand (although I've noticed the flutter while pressing uphill). Just sudden death.
I've learned a great deal about maneuvering a dead car off the road, but would prefer some fellow owner advice before taking the car to the mechanic.
#186 of 367 Re: Does ANYBODY have these 2 same problems? [pontiacinky]
Sep 19, 2009 (3:30 am)
My daughter has a 1997 Grand Prix GT and we were having the same problems, our solution was replacing both the cranksaft sensor and the camsaft sensor. They work togther and the Hall effect is refered to in repair manuals as the problem, any way we repaced one at a time; with the cranksaft sensor replaced last. I believe that this intermitent problem is only when these sensors get too hot. I hope that this resolves your current problem;since this was our solution and we have not had this stalling issue or starting problem.... Sergio.
#187 of 367 Stalling and Starting Issues
Sep 22, 2009 (1:16 pm)
I've been dealing with a stalling/starting issue for about a month. 2002 Grand Prix, 3.8 liter. The car initially stalled while driving. The tack dropped to zero, i lost power steering, had to pull over. The car started fine and I was able to drive it home. The car started fine and drove over to the mechanic no problem. He replaced a vacuum sensor somewhere, the crank sensor, a cam sensor, a throttle sensor, and checked all the wires to make sure they weren't shorting out. The codes indicated it was a CAS but that's been replaced twice, still stalling out. This car is like Jekyl and Hide, I can't point to a single behavior which makes it stall. Sometimes it will start, sometimes it won't. He seems to think the computer (PCM?) needs to be replaced. Could it be the MAF like other people have suggested, or the fuel pump regulator?
#188 of 367 Failing to start/ studdering then stalling
Sep 25, 2009 (10:33 pm)
I have a 2004 grand prix gt 3.8. Ive taken it to 4 mechanics and none of them could figure out this problem includeing the dealership. They always tell me they dont know cause it doesnt do it to them no matter how much in detail i describe the problem.
I bought my car memorial day, my first car so im still learning things about them as i go along. Sometimes it doesnt start, i have to step on the gas while turning the key to get it to start.
Lately, it has been studdering when im stepping on the gas. I was driving on my way home from work today and my car was studdering then eventaully stalled out. No matter if i floored it or if i stepped on it , the car would not accelerate and in which caused it to stall out. After it stalled i tried starting it, however it would crank over but never actually ever start. Till like 20 minutes later when god finnaly cut me a breake and let it start and i was able to drive home with it like nothing happened.
My friend also believes that i am getting a fuel cut when i start my car he made me rev my engine and said it sounded like i was getting a fuel cut
PLEASE SOMEONE HELP ME. I would be extremely greatful, this is my first car and i cannot afford to get another one.
thank you very much guys.
#189 of 367 Re: Stalling and Starting Issues [jessewoo15]
Sep 25, 2009 (10:35 pm)
befor it dies out does your car studder with the gas like no matter how hard you press it it wont go and then all of sudden accelerate. and if you cant start it do you step on the gas to get it tod do it? cause thats my same problem, if you find a solution please let me know.
#190 of 367 Re: Stalling and Starting Issues [jessewoo15]
Sep 27, 2009 (7:36 am)
To all those with the same problems:
My 1999 Grand Prix has been acting up with all the same symptoms many people described. Engine cut out at highway or low speed; hard to start after a hot shut down; the Trac light stayed on after the engine cut out and immediate restart in neutral etc. It was getting worse lately with the hot weather. I contemplated replacing the crank position sensor, mass air flow sensor, PCM one at a time, and hundreds of $ at a time, like many people before me. Then, I found the way to fix my problem at ZERO DOLLAR!
I figured that it could be a voltage problem. I used a multi-meter. I measured the voltage across my battery, which show the normal 12.7 V. But from the positive terminal junction to a good ground on the engine (e.g. Al engine mount) the voltage has dropped down. I also measure the conductivity as well, and I did not get zero Ohm between the negative terminal to the good ground spot on the engine. I removed the grounding cable attached to the body panel and found that it was bolted on to a part with original body paint! What a bad design! Paint is not the best conductor in the world! After years of dirt and rust build-up, the conduction between the bolt threads won't be as good as before. So you get intermittent voltage drops that stalled the engine. I gave the contact a good rubbing with sand paper. I check voltage and conductivity after and it was good as you would expect. Since than, I never had a single staling. It has been three weeks with lots of kilometers in hot weather.
I trust that the same remedy will solve a lot of your problems. I apologize to many garages for reducing tens of thousands of dollars of their potential business.
#191 of 367 Re: Stalling and Starting Issues [pat_from_grove]
Sep 28, 2009 (2:57 am)
I have a 2005 GP base model - I had similar issues. My engine did not die at hwy speeds BUT the computer would crash leaving me to fly a dead elephant down the hwy with no gas or instruments. There is a secret GM TSB I pasted it a while back for Chev, Pontiac and Buick cars running on the Impala platform. The first recommendation is to check the ground strap and the second procedure is to flash the PCM's with a firmware update (not your naked body - although you can try this for kicks). I did what you did and cleaned off the strap and have had no issues apart from a rough start after a hard drive which is likely an oxy sensor on its way out or a filter. Good on yah dude - that's a good fix. Sorry you had to spend so much money - but it sure feels good when you stop!
#192 of 367 1998 Grand Prix SE 3.1 Questions.
Oct 06, 2009 (9:20 pm)
Hello everyone. First off, thanks for taking the time to read my post.
I have recently bought a 1998 Pontiac Grand Prix SE 3.1 for $600.
When I purchased it, it had the Low Coolant light on, and check engine light on.
I knew right off the go what the coolant light was. Damage to the intake manifold gasket due to the DexCool that was in the cooling system. I had that replaced. The Low Coolant light is still blinking, I'm thinking it is a bad sensor because I had also just replaced the radiator cap and upper hose, no further leaks are found in a pressure test. Oil was changed when intake was replaced as to get out all the coolant/water from the engine oil. This is not my main problem.
The main problem is the car has a somewhat of a rough idle. More now than before.When you start the car (It starts fine by the way) the RPMs fluctuate from 500 RPM - 1000 RPM. It doesn't die out, but sounds sluggish. It is fine while moving, and when it slows back down to idle, it fluctuates only minorly.
The Check Engine light I am getting is for a Camshaft Positioning Sensor.
I know where it is, and how to change it. But, would this be the reason of why it is acting so strangely?