Last post on Sep 01, 2013 at 6:48 AM
You are in the Pontiac Grand Prix
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Pontiac Grand Prix, Car Leasing, Car Buying, Sedan
#1481 of 1496 Re: 2006 Grand Prix GXP [gxpjoey]
May 17, 2012 (11:21 am)
The GXP was produced during the time that GM was running out of money and went to the parts bin in trying to put together a performance car without spending any large amounts of money..They found a truck V-8 engine and probably adapted the V-6 S/C tranny, big wheels along with some tricky suspension items..Big name like "Bilstein" really enhanced the issue, WOW.
Take the Chevy Impala SS, same treatment, only no big names, went to the parts bin and used in-house items and used 4 wheels of the same size, whereas Pontiac came up with the crazy idea with "jumbo tires" in the front and smaller tires in the rear..Not too many FWD race cars???
Pontiac was a decent performer however the Chevy really didn't pass the muster for handling, horrendous amounts of torque steer and decent 0-60, good top end, but no big deal..If a tranny blows out of warranty, I don't see why anyone would get upset..Neither the GXP or the SS are sought after cars..I would go for the Chevy SS under 20k miles sitting used car lot at a Buick dealer..Got one spotted, way overpriced, but will shoot them a price and see what happens..
Owned too many cars in my life, 90% brand new, and it's more fun chasing used cars for there is usually a trail of maladies or problems that will hit the internet..
My current ride was bought almost 5 yrs ago w/4300 miles showing, 1/2 original MSRP paid, and now showing around 70k..2006 GPGT, few problems, smooth runner at all speeds..I could make mechanical trash out of it in short time but I have always found that high-speed cruising doesn't hurt the running gear, it's the jack-rabbit starts and quick acceleration in general..
I assume your oil consumption was brought to the dealers attention while in warranty??? Get rid of the Mobil oil and try Pennzoil, I had a similar problem on the "Shortstar" V-6 Olds engines used in the 1999-2002 Intrigues and Auroras.. Had GM buyback my 1998 Intrigue 26k miles based on steering and brake issues..
#1482 of 1496 Re: Transmission Overheating 2008 GPX [tammie5]
May 17, 2012 (12:19 pm)
I'm sorry that you are having difficulties getting this resolved with your dealership at the moment; if we can look into this further for you, please send the following information to socialmediagm.com: your name and Edmunds username, phone and address, the last 8 digits of your VIN and current mileage, and the name of your involved dealership along with any appointment details (date, money paid, etc) you can recall.
GM Customer Service
#1483 of 1496 Re: Transmission Overheating 2008 GPX [tammie5]
May 17, 2012 (2:08 pm)
Do what i'm gonna do........DUMP THAT OIL BURNIN,TRANNY SLIPPIN,NEW BATTERY,3 HEADLIGHTS,NEW EXHAUST, OVERPRICED ROTORS AND PADS TWICE ALL BEFORE 50K AND DUMP GM!!!!! More BS with my 2006 GXP than you could shake a stick at,only 68k miles....goin Japanese!!! Read my long post about what I went through from 2008 til today pretty sad I would say....
#1484 of 1496 2006 grad prix
Jun 12, 2012 (8:37 am)
Just started having issues with our transmission in slipping on our 06 grand prix with 87,000 miles. Do we know for certain if a tranny cooler will stop the slipping, or is there another option? We want to fix it before it gets any worse. HELP!
#1485 of 1496 Re: 2006 grad prix [pmager]
Jun 12, 2012 (8:56 am)
You need to consult a tranny shop. I know the cooler will save the torque converter from blowing up. When it's slipping, I don't know if the temperature is causing this slippage, or the torque conveter has already begun to break down, and causing the slippage. So adding a cooler may either slow the torque converter from breaking down, or solve the slippage issue. I would call a local Tranny shop and tell them about what you know so far, and just see what they say.
#1486 of 1496 2006 Grand Prix
Jun 12, 2012 (9:31 am)
This thursday I have an appt, I have already talked with them on whats going on and they are stumped. From what I have gathered on this blog I will relay to them to see what we can do, and with no warranty I think its going to hit the pocket book hard and thats if we can afford it at this time. Thanks
#1487 of 1496 Transmission update
Jul 13, 2012 (7:16 am)
Update we had the our transmission rebuilt for a around $3500.00 runs a lot better. 1 year warranty, and or 12,000 miles we are hoping to sell need more room. For Sale 2006 grand prix 88,000 miles $8,000.00 you can have a nice ride.
#1488 of 1496 2007 Pontiac Grand Prix
Nov 06, 2012 (1:40 pm)
I have 2007 Pontiac Grand Prix with 141,000 miles on it. When I take off it hesitates to switch in to gear and makes a thud. I have taken it to the dealership several times and no issue was found. The issue started around 90,000 miles and has gotten worse. I have completed the fuel service and transmission service twice to rectify the issue and it never fixes it. I have been told by the dealership that there isn't an issue with the transmission. If the car is parked for several days the issue stops for a day. There are no codes coming up. I am at my wits end with this issue. In addition, when trying to accelerate in traffic the car hesitates. It acts like the transmission isn't able to switch gears. I no longer feel safe driving my car and I'm seriously thinking of trading it for something else.
#1489 of 1496 Re: 2007 Pontiac Grand Prix [lboogierox88]
Dec 05, 2012 (10:09 am)
If I remember correctly I had the same problem at about 60k. I had them replace the torque converter which helped for a while. The problem started coming back at about 110k intermittently and now at 145k it is to the point where the car is stumbling when cruising or going uphill. You can see the rpms jump up and down when this happens. I really like the car and will explore having the torque converter replaced again.
Dec 05, 2012 (10:36 am)
lboogierox88, replace the converter quickly, before it blows, otherwise you may need a rebuilt trasmission. Read my other posts, you need to also install a transmission cooler, trust me. I had my transmission rebuilt 3 times before discovering the actual problem. Yes your trans temp is in the OK area of the gauge, but this temp is not good for the torque converter; the converter blows up when it gets too hot (again, even though the temp is ok for the transmission itself), and all those parts go flying through your transmission, ruining it.