Last post on May 19, 2013 at 6:05 AM
You are in the Pontiac Grand Prix
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Pontiac Grand Prix, Transmission, Sedan
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#412 of 484 Re: 2006 Pontiac Grand Prix GXP Transmission Problem [mtdzwill]
Feb 23, 2012 (11:38 pm)
I am in agreement that the GXP's transmission has a design flaw. I had to replace my transmission (about $3K) 1,000 miles away from home in July of 2010. Although it had about 118,000 miles on on the odometer, I bought the car off the showroom floor, followed the service schedule, and used authorized GM service centers exclusively. I replaced it with a Jasper transmision and now at 143,000 miles, 20 months later, this transmission again has failed. The syptoms were exactly the same each time. Fortunately, the transmission is under warranty with Jasper and they are replacing it but they are not replacing the fluid cooler that was severely damaged when the tranny came apart. I will go with an external cooler to keep the temp down ($200).
I would like to know if anyone knows the issue. The initial codes from the shop indicate excessive overheating of the transmission and Jasper will advise their findings once they recieve this tranny back at their facility.
I love my car but I cannot keep replacing transmissions and I feel GM should make it right since they were aware of the problem early on. There are several service bulletins, addressing the issue. Someone please help!
NHTSA Complaint Line
(800) 424-9153; Open 8AM - 8PM (EST)
(This is only one of the service bulletins.)
Make / Models: Model/Build Years:
CHEVROLET / IMPALA 2006-2007
CHEVROLET / MONTE CARLO 2005-2007
PONTIAC / GRAND PRIX 2005-2007
Service Bulletin Number: 070730012
NHTSA Item Number: 10021844
4T65-E TRANSMISSION SLIPS, NO DRIVE/REVERSE, TCC SHUDDER, NOISE WITH TCC APPLIED. *KB UPDATED 08-15-07. *KB (DIAGNOSIS & REPLACE TRANSMISSION, IF NECESSARY). UPDATED 2/19/08. *NJ
#413 of 484 Re: 2000 Grand Prix GT problem [dustinryan]
Feb 27, 2012 (9:17 pm)
Did you find out the problem on your car? I have a 97 that's doing the same thing and can't afford a new tranny I'm hoping it's a simple problem please help me if you can
#414 of 484 97 grand prix tranny!
Feb 27, 2012 (9:22 pm)
I have a 97 Pontiac grand prix gt with the 3800 moor. When I drive the car it'll drive just fine for a short distance then it's like it goes into neutral. When it does this I can turn off the car and restart it and it'll engage however shortly after the tranny will kick out of gear again. It doesn't slip when engaged and it still has power it's just like it slips until neutral hil cruising st highway speeds. Please help me I can't afford to by a tranny.. I hope it's a simple electronic fix. I've already changed the filter and fluid and it stopped acting up for a day or so them started again someone please help
#415 of 484 Re: 2000 Grand Prix GT problem [keithk24]
Feb 28, 2012 (5:38 pm)
I am very sorry to report that my wife's 2006 Pontiac Grand Prix GXP is at the doctors office. They are doing a transmission replacement. Yep it only took about 1 week after symptoms started showing up before it went completely out. I am also sorry to report that in our area it is going to cost about $3000.00 to fix. We checked wit two mechanics and a dealer. All said the same price. Sorry it isn't good news.
#416 of 484 Re: 2000 Grand Prix GT problem [ddoster1967]
Feb 29, 2012 (7:32 am)
I hope that the transmission replacement goes well and look forward to hearing an update!
GM Customer Service
#417 of 484 1984 Grand Prix 3 Speed Auto
Mar 15, 2012 (4:44 pm)
#418 of 484 1984 Grand Prix 3 Speed Auto
Mar 15, 2012 (4:44 pm)
I have a 84 Grand Prix with a 3 Speed Automatic Transmission... I need a list of transmissions that would work with the 305 V8 (perfer slap stick)
#419 of 484 Re: 2007 Grand Prix GXP
Apr 09, 2012 (3:55 pm)
Add me to the list. 96,000 miles (6 months past warranty) transmission totally failed at a traffic light! Had to leave the car 5 hours away to have the $3300 transmission rebuild done. So I have that to pay, plus rental car, lost work and a hotel stay.
#420 of 484 Re: 2007 Grand Prix GXP [steve4979]
Apr 10, 2012 (4:46 am)
And I should add that this is the second GM transmission that has failed for me in the past two years. We have an 05 Chevy Trailblazer whose transmission had to be entirely replaced at only 65,000 miles, again stranding us in another state.
Over 40 years of owning cars and I've never had these issues with automatic transmissions until we started buying GM products.
#421 of 484 Re: 2007 Grand Prix GXP [steve4979]
Apr 18, 2012 (4:37 pm)
The District Specialist called me today and they offered to reimburse me for half the cost of the transmission repair. I consider that to be fair and appreciate General Motors standing behind their vehicles, even when the warranty has recently expired.