LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Fvck this car!!!!

Old Oct 26, 2010 | 09:59 AM
  #41  
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mine went not too long ago as well where can i find a good tranny cooler?
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Old Oct 26, 2010 | 12:37 PM
  #42  
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i bought mine from triple edge performance as well as my shift kit.
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Old Oct 26, 2010 | 02:13 PM
  #43  
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Originally Posted by SSCoop
I just gave GM Customer Service a call and the C.S rep was real nice. She did tell me however that i have to get a diagnosis on the vehicle before she could go to her higher power and get a verdict.

I have been in warranty for a very long time, from the side of the manufacturer, however, not GM.
Anyways, do what she says. Get her name, see if you can talk to her boss. The key is to be VERY kind, AND, keep in your back pocket the knowledge that they have had many issues with these transmissions.
Can you show that it was serviced properly? Not modified? Previous and future GM customer? I know you have mods in your sig, but you know what i'm saying. Again, be nice but knowledgeable. It's a fine line. If you're too nice and they think they can tell you no then they will just because it's easier. If you're nice but they think it you'll make a big deal, it may be different. If you're an *** to them, forget it.

Request that GM provides goodwill warranty coverage due to the known failures this transmission experiences and the fact it's only a month and 12k over.
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Old Oct 26, 2010 | 09:29 PM
  #44  
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Originally Posted by indynotch50
I have been in warranty for a very long time, from the side of the manufacturer, however, not GM.
Anyways, do what she says. Get her name, see if you can talk to her boss. The key is to be VERY kind, AND, keep in your back pocket the knowledge that they have had many issues with these transmissions.
Can you show that it was serviced properly? Not modified? Previous and future GM customer? I know you have mods in your sig, but you know what i'm saying. Again, be nice but knowledgeable. It's a fine line. If you're too nice and they think they can tell you no then they will just because it's easier. If you're nice but they think it you'll make a big deal, it may be different. If you're an *** to them, forget it.

Request that GM provides goodwill warranty coverage due to the known failures this transmission experiences and the fact it's only a month and 12k over.


I appreciate it man. I took her name, number and all the other info. Im going to get it diagnosed saturday. Do you think they would blame the tranny going bad because of the intake and the exhaust? I still have my catalyic converter on there. i just hope they do something about it or work something out with me at least
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Old Oct 27, 2010 | 09:02 PM
  #45  
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no flush and fill?

Then how do you change the fluid in these trans?
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Old Oct 27, 2010 | 09:04 PM
  #46  
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Originally Posted by Z28 Autobot
no flush and fill?

Then how do you change the fluid in these trans?
Drop the pan, clean the pan, reinstall the pan, fill through dipstick.
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Old Oct 27, 2010 | 09:36 PM
  #47  
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ohh..ok..
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Old Oct 27, 2010 | 10:19 PM
  #48  
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The Service Manager is trying to charge me 4500 bucks for it and im definitely not doing that so i will go with my mechanic who is gonna charge me 1500 for a rebuild. The service manager was an ******* even though i was being nice to him
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Old Oct 27, 2010 | 11:17 PM
  #49  
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you try another dealer?

Especially if your going to contact GM about this. Its not that far out of warranty and these cars are known for blowing trans. they know this.
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Old Oct 28, 2010 | 04:10 PM
  #50  
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Originally Posted by Z28 Autobot
you try another dealer?

Especially if your going to contact GM about this. Its not that far out of warranty and these cars are known for blowing trans. they know this.

na its a freakin headache man
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Old Oct 28, 2010 | 04:49 PM
  #51  
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So you're willing to waste $1500 because it's a "headache" to try to get GM to cover it?

.......... I wish I had that much extra $$$ laying around to throw around because it's a "headache"....
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Old Oct 28, 2010 | 06:50 PM
  #52  
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Thats what I am trying to say..

If mine goes a few months out of warranty I would be calling GM telling them that both GM and I know that the FWD trans on the LS4 powered cars are failing and this failed only a short time out of warranty? I would be calling every day.

The way trans have been droppin on this car I am surprised that there is no TSB on it.

if your going to shell out 1500 thats fine man but I would be trying to get GM to cover thier mistake.
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Old Oct 28, 2010 | 07:15 PM
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Or pay the 1500 and go ahead and have your guy put upgraded parts in it.
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Old Oct 28, 2010 | 07:34 PM
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Just out of curiousity, what was/is the factory warranty on an 06 grand prix gxp
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Old Oct 28, 2010 | 07:43 PM
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Originally Posted by jeffs42885
Just out of curiousity, what was/is the factory warranty on an 06 grand prix gxp
3/36 from the factory.
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Old Oct 29, 2010 | 05:13 AM
  #56  
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if its certified used its 5/100,000
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Old Oct 29, 2010 | 09:05 AM
  #57  
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From the sound of it this trans should never have been mated to a V8! It barely held up in a supercharged V6.

GM has a 4T80 in the Northstar cars, why not these LS4's?
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Old Oct 29, 2010 | 10:31 AM
  #58  
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I don't think the 4T80 would fit.

Also the extra cost of development probably outweighed the cost of replacing/rebuilding the total number of expected failures while under warranty.

These weren't designed to be performance/sports based cars....just fun cruisers.
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Old Oct 29, 2010 | 10:32 AM
  #59  
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Originally Posted by dcrews
So you're willing to waste $1500 because it's a "headache" to try to get GM to cover it?

.......... I wish I had that much extra $$$ laying around to throw around because it's a "headache"....

i have been calling everyday to different places and they wont do anything about it. trust me i've tried. im just going to have my mechanic rebuild the transmission with the upgraded parts. definitely no racing for me
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Old Oct 29, 2010 | 10:58 AM
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Originally Posted by ImpSS07
Post links cause I'm too lazy to search!
Yes please.


And man, does that suck. I'm sorry you're having these issues. It worries me.
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