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Pontiac Grand Prix Transmission Problems

217 messages,  Last post on Nov 17, 2009 at 6:18 PM

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What is this discussion about? Pontiac Grand Prix, Transmission, Sedan

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#177 of 217 by sillybabydaddy Oct 02, 2008 (2:06 am)
replaced a front right wheel bearing hub assembly on my 2001 Pontiac Grand Prix GT about a mouth ago. but still making loud drone inside the car,but noise sounds like i have big tires.Noise is coming from right front please help!
#178 of 217 pontaic grand prix 3.1 auto transmission by rutled03 Oct 06, 2008 (6:03 pm)
warning dash message says 2nd gear start. miliage trany. within 5,000 miles i'll call 125,000. 1st gear no response or does not ingage
#179 of 217 2nd tranny by raynick Oct 12, 2008 (5:31 am)
I have a 2000 se 3.1. I have just recently put in a used transmission as I had noticed the car to be hard shifting from first to second after about an hour of run time. The reason for the used tranny was that mister transmission wanted 4000$ to do a rebuild. The new transmission is still doing the same thing the old one did. Was hoping that someone out there might have an idea if it is the computer, or pressure sensor that might be causing this, or just bad luck and got a dud of a used tranny. One other thing that I was wondering, does anyone know where to find out what transmission is for this car? I have been told that there are two for this model. The id tag was not on the original that was taken out. I had to do a gear ratio to get the new one.
#180 of 217 Pontiac tranny by pete81 Oct 28, 2008 (12:07 pm)
Hello, I have a 1995 pontiac and I have a problem with the pawl pin sticking. When I press on the brake the car does not want to shift out of park.The bad part is, it does it on level ground, seems to get worse when it gets colder.Is it a electrical problem or mechanical ???   Thnask, Pete Replies to this message: cnw (Oct 28, 2008 5:26 pm) pete81 (Oct 29, 2008 12:56 pm)
#181 of 217 Re: Pontiac tranny [pete81] by cnw Oct 28, 2008 (5:26 pm)
Replying to: pete81 (Oct 28, 2008 12:07 pm) Have you ruled out torque lock caused by the car rolling forward or backward after being put in "park"? Assuming older models were so equipped, it could also be electro-mechanical; the interlocks between the brake and gear shift lever are electrically actuated to release so you can move the gear shift lever. However, I don't see a correlation between this possibility and the temperature. Temperature could certainly affect the fit/tolerence of the mechanical components, but no to the extent that brute force could 't overcome it. Sorry, I don't have an answer--just more questions to consider in trouble shooting. Replies to this message: pete81 (Oct 29, 2008 12:56 pm)
#182 of 217 Re: Pontiac tranny [cnw] by pete81 Oct 29, 2008 (12:56 pm)
Replying to: cnw (Oct 28, 2008 5:26 pm) Thanks for your help. I will pay more attention when parking on flat ground to see if I roll a little.
#183 of 217 Transmission problems!!! by sk8ct Oct 30, 2008 (7:01 am)
I have a 2002 Grand Prix with just under 60,000 miles on it. It's been very well maintained. We've started having problems with starting from a stop. It revs out and then finally bumps into gear and goes. It doesn't happen all the time, but it is a bit scary. The tranny guy says it needs to be rebuilt, and quoted $2800.   1. The transmission should not quit before 60K miles - any chance GM will reimburse for this? 2. What is the normal cost of having a transmission rebuilt? $2800 seems like alot. They do warranty it for 3 years. 3. Could it be something other than the transmission needing a total overhaul?   Thanks for any answers!! Replies to this message: raynick (Oct 30, 2008 10:50 am)
#184 of 217 Re: Transmission problems!!! [sk8ct] by raynick Oct 30, 2008 (10:50 am)
Replying to: sk8ct (Oct 30, 2008 7:01 am) $2800 is alot better than I was quoted from Mister Transmission to rebuild the one in my 2000 SE. They wanted $4000. I am in the midst of trying to figure out the problem with mine. I have changed the pressure solenoid, and had the computer checked. (this is with the second tranny for this car) I am also getting the valve body checked and possibly replaced. Does this happen when the car is cold or after you have been driving for a while??
#185 of 217 2001 Grand prix gt by nemesys06 Nov 17, 2008 (1:50 pm)
Late i've had problems with my transmission. It doesn't want to accelerate. Its like it's stuck in second gear. It will accelerate slowly, then when i get to 25 mph, it acts like it's confused. it starts to shift between gears. i can't go any faster than 25-30 mph. i have a chance to buy a used transmission, that works like new. a friend too the motor from a 99 bonneville, and has no use for the rest of the parts. it had the 3.8 liter, same size as my motor. any idea if the casing would fit in the grand prix? or any ideas what may be causing my problems in the current transmission? Replies to this message: ottawam42 (Nov 17, 2008 1:57 pm)
#186 of 217 Re: 2001 Grand prix gt [nemesys06] by ottawam42 Nov 17, 2008 (1:57 pm)
Replying to: nemesys06 (Nov 17, 2008 1:50 pm) I would have my computer checked for this problem first.

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