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Pontiac Grand Prix - 2000-2005

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  • I am attempting to hook my radar detector to my new 2005 GP and want it to come on with ignition...and off when key is off. Which fuse can I connect it to and achieve this function??Thanks
  • I also have a 98 GTP and I'm experiencing the same intermittent problem (TCS off and RPM at zero). They said they're fairly sure it's a malfunctioning crankshaft position sensor which will cost me 300 dollars to replace. Ouch. I'm about to have it done though so I'll let you know if it works in a week or two.
  • The new crankshaft position sensor has fixed the problem and cost me around 200 dollars with labor. Hope this information helps you.
  • My '03 grand prix is doing the same thing.....Did you find out what was wrong with it??
  • have 2005 Grand Prix. driving down the road, the right front brake began grabbing. Took car in, had new rotors pads and calipers put on. Driving along, Trac light comes on accomponied by the ABS light. Sometimes it works just fine.
    Took car back in, said I needed a new front wheel bearing, this IS a major problem these cars have, Replaced wheel bearing, everything fine, WAIT !
    Car begins its old tricks, ABS and TRAC come on, peddal pulsating from false signals from the now fixed wheel bearing, this is where these cars detect wheel slippage and/or traction and use the brakes to either stop wheel spin for traction or unlock the brakes when they lock up, they are a connected problem.
    Car started having problems at 73,000 miles or so.Ofcourse the warranty was gone and the car is not even paid for. I have had chevy's all my life, I WILL NEVER BY ANOTHER unless it has a 235 , 6 cylinder, LOL.
    I have been told I now need a new right wheel bearing...what do you guys or gals think?
  • I forgot to mention, The intake mainifold on these GM vehicles WILL need replaced unless you drain the DEX cool out and use a less corosive Anit-Freeze...Good Luck
  • meant GASKET up there
  • I took car in (grand prix) had the connections to the wheel sensors cleaned, this completely stopped the abs/trac light and peddal pulsation for one moth, started again, assuming they need cleened again, poor design, but something you can do yourself, I have spent 350 for a wheel bearing, 541.00 for complete front brakes and all the time, the problem was dirty connections, before you spend money like I did, clean yours, see what happens!..Good Luck, Tj
  • headachheadach Posts: 17
    I have had to put wheels hubs on my 94 and 90 GP also 1999 Olds Alero, 89 buick regal . They go bad alot on these cars. on myt olds the sensor was built on the hub and went bad a week after putting it on the car. My only thought is to look for a wheel hub with a life time warrenty, can be expensive but will pay off latter.
  • headachheadach Posts: 17
    I just purchased a little fixer upper for $900.00. I is a 1990 Pontiac Grand Prix LE with the 3.1 Multi Port V6 with only 92000 miles. I have put a new alternator, oil change, tune up, and batt new before i bought the car. The cars is FAST and runs great except for minor problems like the slip in the tranny at 20 mph which has been occuring on my 89 Buick Regal since i bought it with 99000 and it now has 172000 and still is running great. My only problem i really want fixxed is that when the car is under load for example radio, turnsignal, lights, it has a rough almost stalling idle. It only stalled ounce when making a tight turn without moving and hasn't stalled since the alternator. what do u think it could be? I love this car and plan to have it for a while.
  • I have a 2004 grand prix and I experienced this problem when I first purchased it. If your tilt steering is not locked into position properly you will have these problems. Check on that if you are still having problems.

    good luck :shades:
  • druviedruvie Posts: 1
    I discovered today thatI have the same problen in my 2002 GTP. Do you have a fix?
  • mick7227mick7227 Posts: 2
    I am entering a 91 GrandPrix in an endurance race called 24 hours of Lemons. Car had to be purchased for under $500 and then you add safety equipment. Anyway, looking for some advice:
    - Is there a rear sway bar upgrade or other suspension tricks for this year car
    - Any tuning tweaks? It has the 3.1 engine and it runs pretty good now.

    Any advice on keeping this beast alive for 24hrs? Will be racing at Toledo Spwy in Sep.
  • mick7227mick7227 Posts: 2
    If you havent had it fixed yet, i would recommend checking the idle control valve. We have a 91 Grand Prix and a 90 Grand AM and experienced similar problem. We didnt even have to replace the part - just remove it and clean it good with carb cleaner. That did the trick
  • '97 Grand Prix-120K Miles
    Car will jerk and Tachometer quits working until car is turned off and turned back on. Usually happens when A/C or Heat have been on. Also, now this is strange, when you turn the wheel the radio volume goes down by itself...you can turn it right back up but obviously there is something wrong(and no I am not accidentally turning it down with the wheel volume controls). Just started doing this in the last 1000 miles. Electical issue??? Alternator??? Something more??? Anyone have and issues like this and maybe have what the solutions were??? If its gonna cost me a lot I am selling the thing, already put $3000 into it this past year.
  • monkey05monkey05 Posts: 1
    Kind of a unique problem I am having that hopefully someone can help me with

    I have a 99 GTP and the exterior temp gadge is always off on the low side. In the summer I can watch it fall to 30 degrees and when it does the AC quits working. If I wait a while it may start climbing again and the AC will start working again but it's hit or miss, it only seems to do it on the really hot days. Any Ideas
  • this is relatively easy issue and i jsut did it so its fresh on the mind... on the front of the engine take out the bolts on the motormounts and leave the car in park... take a tow strap and hook it to the back on the engine(my car had the hook where you can lift the engine out) and the other end hook to somethign firm on the front of the car near the hood latch... tighten the strap down and the engine should easily tilt forward about 6 inches allowing you to get to th back 3 sparkplugs much much easier. when finished jsut undo the strap and put the motor mount bolts back in... good luck
  • cafsafcafsaf Posts: 1
    Hi, I also have a 1990 pontiac grand prix. I think your problem is with the idle learn control. Any time the battery is disconnected for a period of time the computer(ecm) loses its idle learn memory and defaults to preset value. It will now have to be re programmed with the correct values. This can be done at your GM dealer for the cost of around $80.00 , depending where you are located. This is unique to 1998 through probably 1991 or 1992 pontiac models. After 92 GM fixed the problem and all you had to do was drive the car for about 10 miles at a proper speed above fifty mph. This would over write the limp back codes set in the ecm after losing the battery voltage for a period of time.
    I just replaced the radio in my pontiac and had the battery disconnected for two days, i now have to have the ecm re programmed with the correct values for the idle learn control. Symptoms are rough idle, stalling, engine surge and some times rough shifting when the torque convertor locks up putting the car in direct drive.
    Hope this was helpful
    Post if this fixes your problem
    cafsaf
  • nkairnsnkairns Posts: 27
    My 2004 Grand Prix GT has a few bulbs burrt out on the instrumentation panel. 4 on the radio buttons as well as the re-circulation button on the climate control.

    Can these bulbs be replaced without changing the entire console?
  • Wider is better!! more ground coverage makes it easier to corner. of course better tires and suspension will help too!
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