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Sedans Pontiac Grand Prix Pontiac Grand Prix Transmission Problems
217 messages, Last post on Nov 17, 2009 at 6:18 PM
You are in the Pontiac Grand Prix Forum. Your Hosts are pat & karens
Hey guys/gals. I bought a 2000 GP GT with 141k a couple weeks ago. I recently went on a small road trip (about 60 miles) and my friend and I noticed that my car was running high RPMs. Around 4000  80mph. My friend said that my overdrive might be out. Luckily I got a 18/18000 power train warranty with the car. I'm going to bring it into the shop tomorrow. I've been reading on here that a few have mentioned a hub assembly. To me I don't think that would cause the overdrive to go out. I'll let you all know what they find out tomorrow, if anything.
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Replying to: redclownn (Jul 22, 2009 12:28 pm) 
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I found this website that might help a lot of us that have the 4T65E transmission. I list a lot of problems people have listed on here. 4T65E Transmission Info.. Some things it lists are: Neutrals at stops, Shudders on take off Tach bounces up and down a few hundered rpm while cruising in lockup No 4th Gear and a few others. Hope this helps a lot of us! 
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have a Pontiac GrandPrix 1995 SE V6 3.1 VIN M. The EGR is leaking exhaust air through EGR valves. I changed the EGR with 2 used one and got the same issue. I installed a new one and I got the same issue. This hot air is causing cables and vacuum lines to burn. I changed the EGR gasket too and is not leaking hot air at the gasket. I verified any burned cables and there are no cables burned. I changed the vacuum lines that goes to MAP sensor, PCV, and intake air tube. This occurs when I push the throttle up to 1500 - 2000 rpms. This issue is annoying. Please help. I am thinking to change the TPS and the MAP sensors because these sensors usually controls the EGR but I am not sure. 
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Replying to: pohodar (Jul 20, 2009 7:46 pm) !#$#%$% not very happy about that but works fine now...
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Replying to: bcarson1 (Aug 07, 2007 5:50 am) I have the same issues with my GP - now progressed to failing in Drive, 3 and 2 last week and now this morning Drive and 3 acting like reverse and 2 working...and locks not working except manually... Did you come to any solution? Thanks
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Replying to: redclownn (Jul 22, 2009 12:28 pm) |
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Replying to: gp1998 (Aug 31, 2009 8:39 am) |
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Replying to: lukas18733 (Jul 13, 2009 4:42 am) |
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| i have a 2000 grand prix gt with tranny problems when i shift it in to drive it wont move but if i shift from low range on threw to drive it will then move but if i was to suddenly stop and try to go aging it wont accelerate there fore i have to start the process back over once i get going its ok for the most part could this be caused from a software problem or the shift servo | |
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