SS Specific Service Issues/Repairs Service/Repairs specific to the SS. Turbo-Brembo Brakes-2.0 Engine-Limited Slip Differential-Programmable Display-MU3 Transmission

Auto tranny strong enough for stage 1?

Old Mar 15, 2010 | 04:38 PM
  #31  
asanti's Avatar
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From: Waterbury CT
Originally Posted by HHR 'Black Death'
Well thay said tranny is broke, just not sure what. It is out of car and they tear into it tomorrow.

I sure hope you're still under warranty!
Old Mar 15, 2010 | 05:29 PM
  #32  
esmarkey's Avatar
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Originally Posted by asanti
I sure hope you're still under warranty!
All SS transmissions would still be under warranty unless over 100,000 miles.
Old Mar 15, 2010 | 09:23 PM
  #33  
chudlychudson's Avatar
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From: Southern New Jersey
Originally Posted by jerSSey HHR
This begs the question why Chevy detuned the auto down from 260 HP, if they allow the Stage 1 kit to boost it up to 290 HP.
I had pointed out some time ago that on the official GM specs site GM Media Online that the official published engine torque limits are 221 lb-ft for the 4T45, and 260 lb-ft for the F35 (probably why the stock config is 222 at and 260 man), and that although GM has indicated they will honor the new car / powertrain warranty when the stage kit is installed by an authorized dealer, no one seems to be able to produce an official, publicly released specs or engineering type document (like the ones on the above website) that states that either of these units has been validated at 315 lb-ft, which might be of concern to someone who is looking beyond the warranty period.
Old Mar 15, 2010 | 09:28 PM
  #34  
JJ's BLACK SS's Avatar
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there is a right up in the how to build a ecotec book from gm the shows how to make the auto tranny stronger.
Old Mar 16, 2010 | 11:34 AM
  #35  
HHR 'Black Death''s Avatar
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Chudly, That was exactly my thoughts!

*********starting small rant cause I am pissed :) *********

So great, warranty is still good...NOW! But this was supposed to be my daily driver not my hot rod. The Jeep was getting the Supercharger and was allowed to break, not the HHR! My worry is three to four years down the road...... then what? looks like I might trade them both in on a new to me Jeep! Might have to go back to my roots and get a TJ or LJ with a STOUT and tested over time drivetrain!

************ rant over *****************

I love this car and have been a GM fan longer than a Jeep fan, but they have lost their way if they can't build a proper tranny for a mild performance car! I don't care if it is an auto! I ran 700-r4's, TH400/350 til the motors burned up and never has a GM tranny given out on me! They used to know how to build items without worring about bottom dollars over performance!

Last edited by HHR 'Black Death'; Mar 16, 2010 at 02:19 PM.
Old Mar 16, 2010 | 12:46 PM
  #36  
hyperv6's Avatar
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From: Akron Ohio
This is why they are not going to make this tranny anymore. The new trannys are great. Too bad it would not fit in the HHR.
Old Mar 16, 2010 | 02:17 PM
  #37  
HHR 'Black Death''s Avatar
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Just got the call! Total tranny failure. Sounds like the planetary gears came out of position and caused a complete shell-out of the gears. Under warranty and said was not part of "normal" driving, even for normal driving of an SS. Sounds like it might have been a retaining clip, but still has me a bit worried. I am worried cause I baby this thing and the worse driving condition it sees is some mild goosing from time to time. I don't spin tires cause they cost money :) and the most hard acceleration is done at 25 mph plus.

I think it just might be a crap shoot and I lost :) Asked if they would like to do a Stage 1 while it was in the shop :)
Old Mar 16, 2010 | 02:44 PM
  #38  
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Originally Posted by HHR 'Black Death'
Just got the call! Total tranny failure. Sounds like the planetary gears came out of position and caused a complete shell-out of the gears. Under warranty and said was not part of "normal" driving, even for normal driving of an SS. Sounds like it might have been a retaining clip, but still has me a bit worried. I am worried cause I baby this thing and the worse driving condition it sees is some mild goosing from time to time. I don't spin tires cause they cost money :) and the most hard acceleration is done at 25 mph plus.

I think it just might be a crap shoot and I lost :) Asked if they would like to do a Stage 1 while it was in the shop :)
Well, at least it is covered! I have not seen many posts on hear about tranny failure, so it sure seems like you just got a bad one; sometimes it just happens that way.
Old Mar 16, 2010 | 02:52 PM
  #39  
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Ouch! Well at least be glad that you're covered under the warranty.
Edit: Pitbull beat me to it lol.
Old Mar 16, 2010 | 03:49 PM
  #40  
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Even with this being one of GM's weaker trannys it is still a far better unit than many others out there. Out of so many million made you get a bad one once in a while.

I figured it was covered.

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