Last post on Oct 12, 2006 at 6:30 PM
You are in the Pontiac Grand Prix
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Pontiac Grand Prix, Sedan
Jan 15, 2006 (1:35 am)
I've got a 99 GTP that I bought about a month ago. It works great except for one thing; I've noticed the boost gauge getting "stuck" when I'm driving on the highway (getting up to speed or passing) or up large hills which causes the car to stall. I've had it into the dealership and they kept it for nearly a week and they didn't fix a thing. Has anyone had anything similar happen to them or is my car just weird? Anyways, does anyone have any advice?
#585 of 980 Re: HELP! serious hesitation, rpm's move up & down, shifts kinda hard and s
Jan 15, 2006 (9:25 am)
Hay lvg did you ever get a valid fix for this problem?? I have a 2002 GP Gt with same problem. Car has 71000+ miles.
Runs great other than this. No problem above 60mph. Is irritating to say least.. Anybody get this fixed ?? Thanks a bunch.. devil2
#586 of 980 Unable to shift from Park & RPM fluctuations
Jan 15, 2006 (3:59 pm)
I currently own a 2000 Pontiac GP GT, every winter for some unknown reason, the car will not shift out of park. The indicator arrow that shows whether you are in Park, Drive or Neutral will not show up, meaning that I cannot shift out of park without pressing down on the override button beside the shifter. Also for the last 6 months the car's RPM fluctuates between 2000 & 3000 RPMs as I'm speeding up. According to the dealership there's nothing wrong.... Any ideas or suggestions on how to fix??
#587 of 980 Re: Leaking Grand Prix!!! [vbonamo]
Jan 16, 2006 (7:53 pm)
Believe it or not the water is more than likely coming from the passenger window. There is a heavy gauge of plastic the covers the inside of the door before the door panel is put on. This is to prevent water and air leaks from protruding into the vehicle. Sometime when the window motor is repaired or replaced the tech or in most cases the "mechanic" does not properly reinstall it. Try running water around your front passenger window(if a four door otherwise your passenger window) at the door to window seal and see. The water will run down the inside of the door to the kick plate and from there to the floorboard. It might not be in your case but I have watch the professionals at Leak Pro a number of times find it there.
#588 of 980 Re: 2005 GP Vibration in front end [scapagliata]
Jan 16, 2006 (8:15 pm)
We had a Buick Lesabre in the shop at a dealership I worked at several years ago with the same problem of vibrating around 40-45mph. "A Buick LeSabre!?", you say, "what does that have to do with my Pontiac Grand Prix!?" Well, just follow me on this and you see the relevance! It was a 2000 model and had around 65k miles on it. The Buick lesabre has the same running gear as our grand prix.
The guy had been to Wal-mart, of all places, and spent a butt load of money on tires, struts tie rod ends, alignments, and you name he bought it trying to fix the vibration. We actually had a tech that knew what he was doing. Found the driver side axle had started to go bad, replaced, and what do you know the gentleman had the best riding buick on the road. I am not saying this will fix yours but I am having the same problem on my 2000 grand prix and plan on replacing both axles. www.3800performance.com check it out!
#590 of 980 Re: Check Gas Cap Light/Chime in My 2004 Pontiac Grand Prix GT [green_wolf7
Jan 16, 2006 (10:51 pm)
Try getting a OEM Gas cap from GM and see what happens. If that does not help get a pressure check done to see if there are any other leaks in your fuel system. The EVAP code is to inform you if your system is leaking gas or fumes. Thanks to good old uncle sam, this had to be put on every make and model after a certain date for safety reason. Not just pontiac.
#591 of 980 Re: 2005 GP Vibration in front end [gtpwannabe]
Jan 17, 2006 (4:41 am)
oh yeah.... this sounds familiar. My dad has a Buick LeSabre so I was with you on the similarities between the Buick and our Grand Prix. I took the car to the tire place (not wal-mart), a trusted mechanic, and to the Pontiac Dealer (Certified GM Mechanics), and all were scratching their heads. My first question was "Could it be the axels or CV joints". Noooooo Nooooo... it it were that you'd feel this, see this, blah blah blah, they'd all say. So, like your story, I too spent a butt load of money replacing this or that. Finally the axel/cv's were the only thing left. Replaced them, and YESSS... I too have the best driving vehichle on the road. What a way to learn a lesson huh. Next time I go with my own instinct. Heck if we're just playing the guessing game, which is what everyone was doing... I can do that and save a ton of money.
#592 of 980 Re: Check Gas Cap Light/Chime in My 2004 Pontiac Grand Prix GT [green_wolf7 [gtpwannabe]
Jan 17, 2006 (12:04 pm)
The date was 1996. The system is OBD II. The reason is to reduce hydrocarbon emissions to the atmosphere. Has nothing to do with safety concerns.