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Pontiac Grand Prix: Problems & Solutions

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  • snojoesnojoe Posts: 2
    It's your window regulator. I just replace both my front passenger one and the rear right side one. They're pretty expensive if bought through the dealer but you can get them for cheap on ebay. (The dealer sells for like $300 I bought mine for $60 and it works fine) Just search by window location (ie. Left Rear, Right Front, etc) The back window ones are like twice as expensive as front window regulators.
  • snojoesnojoe Posts: 2
    My alarm goes off for no apparent reason at all (Usually at night) There really isn't an alarm just the remote key with the panic button. The lights flash on and off and the horn honks continually. Anyone know what's wrong?
  • Just to let you know, in case somebody discovers a similar problem......

    The service department seemed to know right away what the trouble was, they had seen it before. Fortunately, it was a relatively easy fix, covered by warranty. The problem apparently is an occasional design flaw in the molding of the antenna in the front of the car (I believe it is the onstar antenna). It was what was causing water to leak into the hood and inside the domw lights. At any rate, the molding was re-sealed and the problem seems to be gone.

    Which is fortunate, because Long Island has been inundated with rain and my car would have been in bad shape had I not gotten this taken care of.
  • dan007dan007 Posts: 4
    Hi , I have buyed a Pontiac GrandPrix GT 1999 today and when i was driving home with the car the transmision was malfunction and it turned out that the SOLENOID TCC was malfunction and i went to the dealer and they said not to worry because they will fix the problem , but there was also another problem with the dashboard climate control and when i was driving on the hwy the fan and the dashboard lights went off for 1 minute and then went on again , and the info panel that displays all the information it shut off and on all the time , now i know this is not normal to do so and i wanted to ask you if you know or if you had the same problems with the car . my car have only 75000km and i don't know what to do
    THX......
  • dan007dan007 Posts: 4
    Hi , I have buyed a Pontiac GrandPrix GT 1999 today and when i was driving home with the car the transmision was malfunction and it turned out that the SOLENOID TCC was malfunction and i went to the dealer and they said not to worry because they will fix the problem , but there was also another problem with the dashboard climate control and when i was driving on the hwy the fan and the dashboard lights went off for 1 minute and then went on again , and the info panel that displays all the information it shut off and on all the time , now i know this is not normal to do so and i want to know if this is a big problem or not
    PLEASE HELP THX.....
  • dan007dan007 Posts: 4
    HI I have the same problem with my 1999GP and now the car is at the dealer but when it did that also the dashboard was on and off by itself and the climate control was malfunctioning when the solenoid malfunctioning . Is that normal ?
    Please help....THX
  • knfordknford Posts: 4
    We just got a 2001 GTP a couple months ago and have already experienced the problem with the windows - front passenger side will not roll down as of last week. Also last week, while waiting at a stop light, the whole dashboard information display went out along with the climate controls and blower fan. It came back on after a minute. This has occurred a few times in the past couple weeks. I am very interested in knowing what the problem is if anybody knows. Thanks.
  • Also just purchased a 2001 Grand Prix GT, same problem with passenger window, dealer replaced master switch,said they go all the time on these cars.
  • 2001 Grand Prix, 52,000 miles. Fuel Gauge always shows 1/2 to full, unless I park for a while, then it will drop down and show actual level, does this sound like a float problem or something else, Any ideas appreciated.

    Thanks!
  • knfordknford Posts: 4
    The car did it again today when I braked hard. My wife said that is when it happed the first time too, after she braked hard. I turned the climate control blower off and the ticking noise near the instrument cluster started up. When I turned the knob for the climate control blower on, the ticking noise stops. While the blower is off and the ticking noise is going, I can see the digital information display trying to turn back on, but keeps going out. After turning the knob for the blower back on, everything will start working again after a minute. Maybe a short somewhere? The blower? Why would this happen when you brake hard?
  • knfordknford Posts: 4
    We just purchased a 2001 Grand Prix GTP and after reading of the issues posted on this forum, I am thinking about purchasing an extended warranty for the car before it reaches the cut-off point of 100K miles. The warranty is pretty extensive, but costs $2650 for five years, 60,000 miles, which means it'll be covered up to 151,000 miles or five years from now. How likely is it that I will spend more than $2650 in repairs on this car in the next 5 years? Thanks for the advice.
  • I'd say buy it, I just purchased a 2001 Grand Prix GT with 49,000 miles. In addition to the problems I've already posted, Window not working and Fuel Gauge not working, I have also had to have the ABS sensors replaced. All of this was covered under the 3 month / 3000 mile dealer warranty. Now this AM my Check Engine Light is on and I am over my mileage, wish I would have picked up the Extended Warranty.
  • loppisloppis Posts: 1
    I don't know if you found your answer to your problem, but I have an 97 Grand Prix and the RPM's would drop to zero and the car would die also. I replaced the crank shaft position sensor (about $25.00 at Auto Zone) and the RPM's have never went to zero again and the car has never died since. Good Luck
  • My mechanic cleaned all the connections for the computer, operating the car dashboard lights ,abs lights etc...
    And so far so good.These connections for the incar computer must remain clean ,or it can lead to improper startups etc...
    This is the first day the car has been driven in 5 weeks while it was parked at the mechanics.
    :)
  • tlg1tlg1 Posts: 1
    We've been having this problem for years and can't find the answer. This is a 1998 Grand Prix GTP. At any given time while driving at a consistent speed with cruise on or off the car can start a serious hesitation problem with the rpm's moving up and down. Like it bogs down, like you were pushing and releasing very fast on the accelerator. The car doesn't really make a huge jerking motion but you can feel the car doing this. You can feel this happening and then see the rpm's moving. It also has a slow shift in maybe 2nd gear? Not sure which gear. I've had this to the GM dealership and they can't find a problem with it. It will do it for minutes or hours. Sometime doesn't do it at all. There is no specific weather condition to which this happens. It has done it for a few years and is starting to happen more now. Some days it never happens. I've read every post on here and can't find the answer to this problem. We thought it may be the fuel filter but that was not it. The dealership put this cleaner stuff through it and blew black stuff out the exhaust and that did not help it either. You can floor it while this is happening and the car will speeds up but then you resume a consistent speed it continues to hesitate till it decides to stop. It has great pick-up and runs really good but when this happens, it is a definite problem that is apparently hard to detect. This car has had the Sunoco 94 gas in it almost always unless unavailable then maybe Shell high octane. Never cheap gas in this car. Oil changes regular. We really don't drive it that much. It only has 72,000 miles on it. Our friend that is a mechanic says it could be a clog or a varnish build-up on the fuel pump screen from sitting or something. Nobody really knows and that is why I am posting this. The slow shift is probably not related to the hesitation problem but who knows. Gas mileage seems to be fine. Anybody ever heard of this? The hesitation is really my main concern although the slow shift isn't great either. By the way our car gets the passenger floor a little wet when going through a car wash also but right now that isn't my concern. We may look at that problem later but the hesitation is our major problem. Thanks in advance to anybody who knows what to do.
  • Hi~

    My car was doing the very same thing. It's been to the shop several times and finally after having a Vehicle Data Recorder installed so that they could see what was going on, they discovered that my crank sensor was bad. They replaced that, but left the recorder in the vehicle in case it has this same problem. It still acts like it wants to stall out on occasional start ups, so i'm not sure that i'm out of the woods yet. The service manager did tell me that the crank sensor is a known issue on GM vehicles, so that may be one option. Also, when I was there to pick up my car I asked what the next step was if this continues to happen and they told me that it was to replace the ignition module. I'm so fed up with this issue. I have a 2004 Grand Prix and i've only owned it for about 2 months. In those two months it's been in the shop 6 different times. Good luck to you.
  • mitzijmitzij Posts: 611
    What is the name of the company and what plan are they selling? Is there a deductible? I'm not sure GM will sell their best one with that kind of mileage.

    That's a big pile of $$$ for a service contract.

    Chances are you'd be better off putting that $2650 in savings and keeping it for a rainy day. At least you'd be earning interest.
    Do you plan on keeping that car for five years?
    (or 60,000 miles-for one of my customers, 60k miles is equal to about 6 months)
  • kevvokevvo Posts: 1
    hey, i had the same problem with my 2000 gtp. i searched and searched around the windshield looking for an opening of some sort and couldn't find a thing. are you sure this only happens in the rain, or is when you have your air cond. on? there is a little rubber elbow under your car that drains your air. when i located this elbow onder my car i found it was plugged. the air was draining through the blower motor and onto the passenger side floor. check it out. the elbow is a [non-permissible content removed] to find, its right on the fire-wall, passenger side about a foot up into the engine. i used a close hanger to unplug mine... if i were you i wouldn't park my head directly below when you unplug it.

    kevvo
  • I have a 2000 Grand Prix GT with 92000 miles and I haven't had any major problems with the vehicle. Is there a website that list the common problems that may occur on this specific car do to milage or age of the vehicle? I know that all cars and drivers are different, but I looking for possible problems I may run into if I keep the vehicle.
  • 2000 Grand Prix, GTP
    Newest problem, fuel gage went bonkers this week. It either sits on completely full or completely empty; if empty, all other indicators for empty fuel come on as normal.
    Sometimes hard braking or going around corners will make it change from one to the other. Anyone know the fix?
    All other displays appear to function normally, although not 100% sure ventillation system is working properly now.
    Previous problem -Transmission had strange whinning sound and hard shifting intermittently, then one day TRAC light came on. Took to mechanic, think he might have done something to solenoid, that seemed to have fixed that problem.
    Have replaced front wheel bearings 3 TIMES in 90k miles! :mad:
This discussion has been closed.