Last post on Nov 23, 2013 at 4:09 AM
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Pontiac Grand Prix, Engine, Sedan
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#98 of 367 1992 Pontiac Grand Prix
Aug 04, 2008 (2:23 pm)
. The car is a 1992 Pontiac Grand Prix, loaded with options, including power windows, heads-up display and the radio controls on the steering wheel. The car was originally my brother-in-laws. He purchased it from a friend at the chevy plant where he worked. It was originally a friends wifes car and she passed away. So the vehicle was never hot-rodded and is low mileage at 68000. It sat alot. The problem started with the car dying at stop lights or signs. At first it would restart, but after a short period of time it progressed to the point it had to be towed home. It now fails to start at all. I have checked the fuel log, it has 40psi fuel pressure. The injectors ohm within 1 ohm of each other at 13 or 14 ohms. With a Fluke multi meter it reads .6 volts at the injectors. The ignition has good spark at the plugs, bright and blue. I hooked up a 12v bulb across the injector harness and the bulb glows orange/yellow, very dim but does flicker like it's receiving a pulse to spray. If I spray starting fluid or even gas into the plenum the car will start and run briefly. I have looked at the schmatic for the engine and I don't see anything upstream from the injectors except the ECM. Someone advised that with the car sitting as long as it has the injectors could be gummed up, and failing to spray. Someone else mentioned a "passlock" which I am not familiar with. I'm getting what is probably good advice, but I'm still chasing my tail. Is there another componet that controls fuel discharge?
#99 of 367 Re: 2001 Grand Prix GT [btighe]
Aug 08, 2008 (11:39 am)
I just purchased the Crankshaft Position Sensor and I was wondering where it was located. I have a 2000 pontiac grand prix gt 3.8. Thanks.
#101 of 367 engine shuts off when driving
Aug 15, 2008 (11:01 am)
My 2007 pontiac grand prix is just fine, then all of a sudden the engine will shut off. this happened while on the freeway going 60 mph, it happened in a drive thru at walgreens while sitting, and everytime we take it to the dealer, they cannot locate a problem. It has happened 4 times, and the I have only owned the car for 1 year (23k miles). I am stumped, and the dealer keeps telling me they hook it up to their diagnostic computer and there is nothing showing wrong. has anyone else had this problem...if so, is there an answer?
#102 of 367 2002 Pontiac Gran Prix
Aug 16, 2008 (10:43 am)
I have had a complete tune up on my car. From the oil change, spark plugs, fuel line tune up, cool system flush, plus other things. I start my car and it will shut off. So I start it again and then go. This happens every time I turn it on!! Then while I'm driving down the road, it will just suddenly turn off on me. No one seems to be able to find the problem and I'm tired out putting out money with nothing in return. Can anyone help with this?
#103 of 367 Re: 2002 Pontiac Gran Prix [cristyz]
Aug 16, 2008 (1:55 pm)
Try replacing the ignition module and coils, that sounds like it could be the problem.
#104 of 367 Re: 1991 Pontiac Grand Prix SE Need help !!!!!!!! [yuryb]
Aug 20, 2008 (2:12 pm)
smart money says it's the fuel pressure regulator. with a little know how you can do it yourself or if you pay a shop around 250-300 dollars
#105 of 367 Re: engine shuts off when driving [ozzy7]
Sep 04, 2008 (3:48 pm)
I have the same problem with my 2007 GXP. The car has 12k miles on it and today is the 2nd time my car just shut off while driving for no apparent reason. The same thing happened about 2 months ago just driving down a hill and it shut off. No warning light just shut off. Today I was using TAP shift to go between gears going down a hill and all of a sudden it shut off...No warning lights nothing...The only reason i knew it shut off was because steering and braking got very hard. I told the dealer about this once before and they said chances are there are no codes in the computer. They said dont worry about it unless it keeps happening. This doesnt seem right. Any ideas what I should tell the dealer to look 4. I know they are going to give me nothing but problems and wont be able to find anything. This just doesnt seem safe for the car just to shut off at random
#106 of 367 Re: engine shuts off when driving [am3376]
Sep 05, 2008 (7:21 am)
I have had everything possible done to my car, still nothing has been found. My car does the exact same thing. Turns off while driving and it turns stiff. The next thing that I am going to have them check out, is the park lock actuator. I'm not sure if this is going to work but since I don't know anything about cars, well I guess I will keep spending the money until I find a solution. The dealer hasn't been able to find anything wrong. I get all my information from Edmund's about what it might be. Good Luck and let me know if you have it fixed. Maybe you could help me out.
#107 of 367 Re: 2001 Grand Prix GT [jclangh]
Sep 06, 2008 (8:09 am)
Sorry all been away alot and I have not had the time to get on and help best I can.
Being an ASE master mechanic 4 12 years and then moving on to other job " I hate hate cars" After doing it for so long you just can't do it any more.
Your CSP "crankshaft position sensor" is located behind the Lowest pully and Is the largest one on the crank shaft. To pull this pullt you will need a special puller that will cost you $150 or so most parts stores do not have the right 1 to rent. Good luck finding the right 1. Best bet a stearing wheel puller but you will need to buy very long very small boltz that will go thru the puller and all the way back the the threded area of the balancer. they ar I thin 4" and 10mm head so small stuff.
The center of the puller is to short so you will need to use a spacer 1/2 inch deep socket 3/8 drive. When threding in the puller go slow and don't use an impact wrench those little 10mm boltz will pop and now you have a new problem. GUILTY Yes I did the impact thing once"once" the I had to fab up some offset boltz when turned 1/4 turn they are bigger and lock in place in the balancer. Ugly idea but it worked and was lucky not to tear the rubber balancer apart. All this can and will just piss you off. Break out the BFH a knife cut of the balancer $250 ouch and pull the old fasion way. Bad Idea. Oh the dealer will not sell you a puller, Snap on has no clue Mac Matco Cornwell There all lost too. Good luck.