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Pontiac Grand Prix - 2000-2005



  • Have you guys seen Wouldn't that be nice to have the brand go on forever....A new Grand Prix?
  • I admit I've scratched my head over GM's decision - but I guess Buicks will sell better in China. Personally, I'd have dumped Chevy as a trash brand (excl. Camaro/Corvette - which could stand brand-free IMHO). Develop out the G6/GP as sport-oriented import contenders and introduce a mass-appeal new-fuel people's car a la the original Beetle. (Volt in production? I don't think so). Pontiac is a proud American name, so this tree-hugging car lover (oxymoronic? not necessarily.) thinks GM could have appealed to the next gen by evolving Pontiac into a brand that represents the best of nature... the Pontiac Fire, Sun or Star, maybe, in homage to the -fires and -birds of yore.
  • Fordfanatic....we are trying to work on that very thought....Let's build a car that appeals to people that they want to own! That is what we hope to accomplish.
  • I'm wanting to purchase a remote start w/ keyless entry for my 2004 GP GT2. I've talked to two retailers so far and both are trying to sell me an extra relay module of some kind. Is this really necessary? One mentioned it has to do with an antitheft immobilizer on the car. Does this car have that? There is nothing inside the car "advertising" anti-theft anything.
  • keelinkeelin Posts: 1
    Does anyone have a step by step plan to remove & replace the factory speakers?
  • 694door694door Posts: 1
    I'm getting to change out the driver door on my son's '95 Grand Prix. Got a door from the salvage yard, but I need to swap the outside moldings. I'm not sure and the Haynes manual doesn't show how to get them off. Can anyone tell me how to get them off so I can swap the moldings?
  • I have a 2004 Pontiac Grand Prix, check gas cap light keeps coming on along with engine light, (not flashing) which in the Owner's manual says could be emissions.

    I live in MN and as the weather warms up sometimes it goes off and when it's cold outside it comes back on.

    I repalced with OEM gas cap from GM dealership and light still comes on, I went to Auto Zone and their code checker just comes up with large vacuum leak. Anyone have any ideas for me?
  • ghelmerghelmer Posts: 1
    If you check under the fender wall near the filler cap there is an canistar looking valve that is installed in the filler vent line. This is defective. Im in Canada and it is about $40 dollars at GM and is very simple to replace about 10 mins. I replaced 3 caps before being told this is a common problem.
    This should solve your problem
  • jmcuencajmcuenca Posts: 1

    I have the same problem with my 1997 and I can not even find where the sensor is located, can you please tell me where the sensor can be found/


    picture would be great....
  • good man! hold on to these cars, I own a red '90 LE coupe 3.1 and I only paid $500 and it has NO RUST ANYWHERE. It'll be an antique in 5 years, and its a car thats got character and its fun to drive
  • I found a Pontiac Grand Prix on Craigslist that was on a dealership. I went and looked at it the guy said that the Intake Manifold Gasket needed to be replaced. Well the oil is white which leads me to believe that it is the Head Gasket that is bad. I need to know 100% what is wrong with the car before I buy it. I don't see how an Intake Manifold Gasket could cause moisture to get in the oil. Any advice helps. :confuse:
  • luweegyluweegy Posts: 3
    You have a blown head gasket which means there was another problem that caused that.Bad water pump or cooling fan inop maybe. It will probabaly use oil when your all done with repairs.Most cars do that have been overheated enough to blow the headgaskets.
  • Had a complete gasket job (both heads, intake, exhaust, etc.) done, oil changed, antifreeze changed... Less than 1,000 miles later today, all of a sudden the engine is knocking like crazy (speeds up with acceleration), idle fluctuating between 6-900 at stop, cutting off/stalling at stoplights, etc.. I can`t get a hold of the mechanic who worked on it - it`s too late on a Friday afternoon - but I have to imagine it`s not a coincidence - even he remarked at the time that everything else looked great? Help!
  • Hi all! I just bought a red 2001 grand prix gt 1 owner car!! All maintenance records were on the car fax report it only has 59000 miles!!! I love this car probably the best car i have ever owned!!
  • if that gp has the 3800 engine with the plastic intake, it is very possible that all that is needed is an intake and gasket... 3800 have a serious problem with the egr port burning a whole in the intake into the water jacket .. which puts antifreeze in the oil or exaust depending on when it blew ...
  • Recently my "service variable effort steering" light came on. I took it to my mechanic and they said it was my rack & pinion. $1200 later, my light is still on and now my cruise control isn't working too. I took it to the dealer where I purchased it and at first, they told me the same thing, it was my rack & pinion. I explained everything that I had replaced 2 months ago and they rechecked it. They said its my EBCM module and that it's a $985 job. Anyone else experience this issue and do you have any suggestions?? Thank you!
  • I have the same issue w/ others as well for my 2004 GTP.. I just un hooked the plug at the bottom of the dash on the passenger side and I can get it to stop running, and then plug it in when needed, but since then I have taken it out because I tried to buy the part for it and couldn't read the # on it so when i did they lied to me as GM CS with the price and I don't have the money for it...
  • I just bought my GTP with 70,000 miles yesterday and love it! :)

    Does anyone know the brake line diameter size? I believe there are two different sizes depending on which line needs replacing.

    Thank you!
  • I have no heat in my 04 Grand Prix. I just changed the t/stat and that did not help. Coolant in full, was flushed a few years ago, no coolant leaks, blower fan works fine. Any thoughts?
  • chriso7chriso7 Posts: 34
    I recently bought the car with <70k miles. I was driving last weekend and the rear drivers side strut cup (below spring) collapsed onto my tire and consequently I wore the tire (1" wide piece) down to the steel belt. I had thought the white smoke emanating from it was due to an exhaust issue.

    Unfortenatly, I noticed inside the trunk that the quarter inch wide machine weld facing the fender surrounding the bearing plate where the strut bolts to was cracked (or split) 70% of the way through.

    Most likely due to the stress reflected back to it from driving it about 3 miles on city roads.

    Does anyone know if this impacts the structural integrity or is inconsequential? What is the best way to fix it?

    Thank you. :sick:
  • charmoncharmon Posts: 1
    My son has this car, and the motor is blown. I have been looking for used motors for it, but ghow can I tell what series motor is needed? He is going to use his existing supercharger, so does it even matter which 3800 series he gets?
  • josh55303josh55303 Posts: 3
    Hello everyone:

    I am having a couple of issues with my 2004 Grand Prix. I've had the car for approx. 5 years now, and never really any problems, but went over 140K miles, so I know the sounds of my car and know when somethings wrong.
    I was driving home the other day and gave the car some gas to go when the car infront of me abruptly stopped to allow a car turn, to which I had to slam the breaks. But the car "semi-stalled & hiccup'd" from the gas I just gave it and then slamming on the breaks.
    Anyways, after that and pulling out onto the highway I could hear what sounded like a small grind coming from the drivers side front tire area. Very faint, but I could hear it, and then the car proceeded to "semi stall" a couple of more times when I would come to a stop at lights. I immediately took it to my garage for diagnosis. To which they couldn't find anything wrong other than some breaks, bearing, and sway bars that needed replacing. Thanks a lot!
    So problem is still there. The only real change is the "semi stall" isnt there anymore. I hear it when I drive, and it really picks up when I am parked on an incline, like in my garage. Small downhill grade for water to move down. But once I park my car you can really hear this "grind".

    Also, there is some sort of water build up below the windshield and dash....anyone know how I can drain this water. Ive seen some posts about what I think is the problem, but haven't read a way to drain it.

    Any thoughts on both??

  • woosleywoosley Posts: 1
    have you tried the air breather the filter could be cloged.
  • fantaziofantazio Posts: 1
    Hi, Actually I hav ethe same problem with my pontiac grand prix gtp 2004. I took it to the mechanic and he told me the problem is rack and pinion whereas even when I pour steering wheel fluid in the car the alarm still exists, so the problem should be something rather than rack and pinion. please let me know if you found any solution for the problem. Thanks
  • What is this part called and what is the part number?
  • theraztheraz Posts: 2
    I had the exact problem happen in my car except the hot air was coming out of the passenger side. We figured it was just the slider or some connection with the slider not registering where the control was set at. We just replaced the climate control panel/box and I have no problems now. FYI...the part at the dealer is about $450+ is what they told my dad. We got it at a junk yard for $68.
  • jpfjpf Posts: 496
    You need to make sure that the bolt pattern of the engine matches with your vehicle. For example, a 1997 Grand Prix with the same engine may have a different bolt pattern than your vehicle. I would think that you could get this information from a Haynes a Chilton manual. Good luck.
  • jpfjpf Posts: 496
    Just purchased a 94 Grand Prix with 125k miles. I would like to hear about maintenance issues from Grand Prix owners that had owned one. Thank you.
This discussion has been closed.