1st Tranny down
Thread Starter
Launching!
Joined: Apr 2009
Posts: 233
Likes: 0
From: Boston, MA
1st Tranny down Well, my tranny died today. I was getting off the highway, and the whole car jerked so bad I almost hit the steering wheel, then stalled out. Every idiot light came on, and every warning scrolled through the info box under the speedo. I coasted to a stop (At the end of the off ramp) and restarted the car. All the idiot lights went out, and everything seemed ok. I threw it in drive and only have 1st and 3rd and it is shifting so hard it feels like the tranny is going to fall out.
I'm flashing the tune back to the factory tune, and going to try to limp it in to the dealership.
I'll post updates when I get them. I'm curious to see what they may/may not say about the aftermarket rims, and the cat-less pipe. I'll make sure I have a copy of the Magnuson-Moss Warranty Act in the glove box. hahahaha
C-ya
I'm flashing the tune back to the factory tune, and going to try to limp it in to the dealership.
I'll post updates when I get them. I'm curious to see what they may/may not say about the aftermarket rims, and the cat-less pipe. I'll make sure I have a copy of the Magnuson-Moss Warranty Act in the glove box. hahahaha
C-ya
Last edited by beznich; Aug 20, 2009 at 07:32 PM.
Teching In
Joined: Nov 2008
Posts: 37
Likes: 0
The trannies in these cars are very spotty. My 06 GXP trans acted up with 14k miles on it. Now I have an 08 Impala SS with 43k miles on it and the trans is awesome (knock on wood).
I don't necessarily abuse my cars, but I really USE the V8. I love torque.
I don't necessarily abuse my cars, but I really USE the V8. I love torque.
Thread Starter
Launching!
Joined: Apr 2009
Posts: 233
Likes: 0
From: Boston, MA
Good question, I called by buddy that helps with with the tune and gives me dyno time. I asked if it had a "limp mode" he wasn't sure. I'll post all the info once I get it to the dealership tomorrow. I'm having a hard time finding my stock tune, I know I put it somewhere, hahahahaha.
Trending Topics
Not sure about the 4T65-HD, but the 4T80-E I had in my 95 Aurora had a limp-home mode...It locked itself into 2nd gear when it failed on me, which the tech said it was programmed to do in case of a major failure. Of course, this caused the motor to spin 3 rod bearings, too!
Glad I bought the warranty!
Glad I bought the warranty!
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Staging Lane
Joined: Jul 2009
Posts: 72
Likes: 0
Is it fair to assume that you had a tune with a few tweaks to torque management and shifting characteristics?
I just turned 29k with mine (odd coincidence) and no problems so far, but so far I have not done anything to the trans tune except raise the shift points a little. The stock shifts are so weak I can't stand it.
I just turned 29k with mine (odd coincidence) and no problems so far, but so far I have not done anything to the trans tune except raise the shift points a little. The stock shifts are so weak I can't stand it.
TECH Enthusiast
Joined: Jun 2008
Posts: 621
Likes: 1
From: Zeeland, MI
I think there is a good chance that if you mess with the Tranny while tuning the car and have 20's you will have transmission failure...that or they built all your cars on Monday and Friday....
I bet they say the wheels took out the trans. I would find the exact weight of the stock wheels and the aftermarket ones just incase they try to stick it to you. Good luck with getting it fixed.
Welcome to the Tranny Drop club!!! You're member #53548571548421!!
Mine blew at a little over 50k and I was able to limp mine about 20 miles to my parents garage. I would have gone back home but it's a PITA to get a tow truck in my complex. Look on your door and see when it was built, mine was built in 11/06(holiday season) so thats why my tranny blew!!! lol
Mine blew at a little over 50k and I was able to limp mine about 20 miles to my parents garage. I would have gone back home but it's a PITA to get a tow truck in my complex. Look on your door and see when it was built, mine was built in 11/06(holiday season) so thats why my tranny blew!!! lol
Teching In
Joined: Nov 2008
Posts: 37
Likes: 0
There are dozens and dozens of LS4 tranny failures out there. You need to look on other forums to get the whole picture.
TECH Fanatic
Joined: Jan 2007
Posts: 1,029
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From: LITH, IL.
OK, 25 out of ~300000 = 0.008% failure rate. Hardly Earth shattering. Point is that while they do fail, and it sucks big time for the individual who is unlucky or stresses it beyond it's design, it is not the handgrenade with the pin pulled that some make it out to be.
Launching!
Joined: Sep 2008
Posts: 238
Likes: 0
From: Canada
*knocks on a whole lotta wood* ive had my 07 GXP since it was new. It has been tuned(70km) with a shift kit(60km) now at 80 km. So far no issues. Summer only driven. My winter beater though just got written off in a major hail storm where i live. So im scrambling to find another winter beater.
Thread Starter
Launching!
Joined: Apr 2009
Posts: 233
Likes: 0
From: Boston, MA
New tranny going in tomorrow, and I should have the car back Thursday. Yes the tune has many changes to both the engine, and the tranny and all TQM has been removed. They are also replacing the front right hub assembly again (3rd time for that), and they are also replacing the rack and pinion (they said there was a problem there as well), but I didn't notice anything. No complaint about having a tune in there (The tune I loaded to bring it in for service removed DOD and removed the emmission error light), or for the 20's, or the cat-less pipe, or anything. Very happy with the level of service, and can't wait to get my car back.
New tranny going in tomorrow, and I should have the car back Thursday. Yes the tune has many changes to both the engine, and the tranny and all TQM has been removed. They are also replacing the front right hub assembly again (3rd time for that), and they are also replacing the rack and pinion (they said there was a problem there as well), but I didn't notice anything. No complaint about having a tune in there (The tune I loaded to bring it in for service removed DOD and removed the emmission error light), or for the 20's, or the cat-less pipe, or anything. Very happy with the level of service, and can't wait to get my car back.