Last post on Aug 22, 2013 at 12:43 PM
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Pontiac Grand Prix, Transmission, Sedan
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#123 of 498 2007 Grand Prix transmission and brake issue
Nov 19, 2007 (5:42 pm)
I am having issues with my grand prix with the car when it is in drive mode losing power and bogging down. The dealer says the see the problem but there is no fix for the problem except to drive it in 3rd gear instead of overdrive. I argued my case with Pontiac on the phone and they will not fix it as they say there is no problem, but yet on my receipt they stated there was. I hope someone out there has the same problem and I can get this fixed. My car is only 8 weeks old. Also I have a brake issue with them clicking when first used and they say this is also normal . HELP???
#124 of 498 2007 grand prix surging problem
Nov 20, 2007 (3:57 pm)
I own a 2007 grand priz with 4000 miles on it. It has a surging problem mostly in overdrive but also in 3rd gear. You can watch the tack and it gets surges and the engine feels like it loses power and you have to punch it to get it to go. The dealer says there is no problem, to just drive my car in 3rd gear. This helps but doesn't stop it. Also I have never heard of driving a car in 3rd gear just to fix the problem. I have been in contact with Pontiac and they also say there is nothing they can do. I am so mad. I also had a second opinion of an "old school" mechanic and he says it is an electronic problem, somewhere. But POntiac refuses to check the problem. HELP??
#125 of 498 2003 Grand Prix Transmission
Dec 28, 2007 (12:36 pm)
#126 of 498 2003 Grand Prix Transmission
Dec 27, 2007 (9:08 pm)
I have a 2003 Grand Prix SE 3.1 with 150,000 miles on it. I have a PO742 code. When it is cold the tranny shifts fine but when it is driven about 10 miles and slows then starts the shifting it shifts hard, I mean hard all 4 gears. twice in the last week when slowing for a turn it didn't down shift it stayed in 3rd or 4th gear. I can stop and shut turn it off for 5 minutes and it will shift fine until it is drove for a few miles and have to slow for a turn or stop and starts then it starts the hard shifting again. When on the hwy and it has to shift to a higher gear (out of OD) going uphill it is as smooth as a new car. It shifts smooth until it gets warm. and sometimes it doesn't hard shift at all but that is rare. I have changed the filter and fluid. I am about ready to trade it off for something else. Anyone have any suggestions? What would it cost to have the trannny changed? I have a friend who has an auto salvage with one that has 47k on the tranny. fix or trade? I need a dependable car.
#127 of 498 Re: 2003 Grand Prix Transmission [angel50]
Dec 28, 2007 (12:36 pm)
It sounds like a valve in the trans. is sticking and that is not good you may want to replace it.
it may put fine metel shaveing in the trans.
#128 of 498 2005 grand prix
Jan 01, 2008 (1:03 pm)
I have an 05 grand prix with 52,000 miles. I think it is slipping. When I back up and put it in drive it slips and then surges and sometimes while driving up hills it does the same thing. It doesn't always do it so I'm afraid to have the dealer look at it. Last time I took it there they charged me 100.00 and didn't find anything. Any ideas?
#129 of 498 Re: 2007 Grand Prix transmission and brake issue [purplefreak8]
Jan 14, 2008 (8:27 pm)
It sounds like your catalatic convertor which is a covered item up to 80000 miles or 10 years. for some earlier models with known problems, GM extended this warranty to 2 years or 120000 miles.
#130 of 498 Re: 2007 Grand Prix transmission and brake issue [shashadela]
Jan 14, 2008 (8:28 pm)
I meant to say 12 years and not 2.
#131 of 498 Re: 2007 Grand Prix transmission and brake issue [purplefreak8]
Feb 03, 2008 (10:36 pm)
do you mean while at a stop when you give it gas it tries to die? i have that problem with my 93 i took it to a dude and said it was the spark plugs but i knew it wasnt and so i still have the problem and dont know what it is
#132 of 498 transmission life.....!
Feb 23, 2008 (5:22 pm)
how long will the transmission in a 2001 Pontiac Grand Prix last? and how often should you change your filters and fluids. in order for the car to perform to its full potential ?