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02-27-2008, 04:38 PM
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Hummer Veteran
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Join Date: Sep 2006
Location: Ann Arbor, MI
Posts: 138
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Re: S/C installed now I have shifting problems!!!
from my experiance, you will have to rebuild the whole trans with better parts.
i went thru 3 trans after my SC install. but got it right after i found some one to rebuild with all of the best parts they could find for the trans.
it only cost around 1200 for the rebuild and i have pounded on the trans for the last 25000 miles and no problems
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02-27-2008, 05:47 PM
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Hummer Professional
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Join Date: Oct 2007
Posts: 267
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Re: S/C installed now I have shifting problems!!!
Have you tried to use the programmer that came with the S.C. and reinstall your settings??
__________________
2003 H2 SUV Supercharged SHOW TRUCK
2013 Sierra Denali
2012 Yukon Denali
1974 Corvette conv. (454ci)
31ft Gulf Craft Boat
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02-27-2008, 05:56 PM
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Hummer Expert
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Join Date: Feb 2005
Location: new orleans
Posts: 506
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Re: S/C installed now I have shifting problems!!!
I have the Mag charger and I'm running 8lbs of boost. I am hard on my tranny but have never had a problem. Sounds like a tuning issue to me...
__________________
Maury Ballstein: I've got a prostate the size of a honeydew and a head full of bad memories.
03' White 2 Door H1 Pickup w/ 2in. body lift
05' BLACK SUT SLANTBACK Magnacharged w\ 12lb pulley, 6in. Fabtech lift, tierods, BUILT 4L80E tranny, 5.13 gears
66' VETTE STINGRAY
12' DODGE RAM 2500 CUMMINS 4X4 W/ FRONT & REAR LOCKERS
07' Z06
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02-27-2008, 06:25 PM
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Hummer Veteran
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Join Date: Apr 2003
Location: Kelowna,B.C., CANADA
Posts: 175
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Re: S/C installed now I have shifting problems!!!
Got an update, 2nd gear is gone! The shop said that the Band has broken for second gear. They are going to have to open up the tranny to see how bad it is. Good news is that the tranny fluid is still red.
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2006 Pacific Blue H2 SUT
-Rancho Lift
-39.5" IROK Tires
-20" Rockstar wheels
-MagnaCharger S/C
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02-28-2008, 04:43 AM
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Hummer Authority
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Join Date: Sep 2003
Location: Canada
Posts: 1,251
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Re: S/C installed now I have shifting problems!!!
It would be in your best interest to find someone to build your transmission to handle the added power, in my experience the stock trans does not hold up unless you drive it easy. Basically you have upgraded to a performace engine and have it mated to a stock transmission making that your weak link(pretty expensive weak link). How many race cars ya see running a stock transmission?
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02-28-2008, 04:47 AM
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Hummer Authority
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Join Date: Sep 2003
Location: Canada
Posts: 1,251
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Re: S/C installed now I have shifting problems!!!
Oh ya almost forgot, Aamco? Sorry but cant help shake my head and wonder why. Ya get what ya pay for, first rebuild may sound cheap but after the third it starts to hurt a little.
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02-28-2008, 07:57 AM
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Hummer Veteran
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Join Date: Apr 2003
Location: Kelowna,B.C., CANADA
Posts: 175
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Re: S/C installed now I have shifting problems!!!
Thanks for the input guys. I know you guys are laughing at me cause I said I was taking it to Aamco. Aamco in Canada is alot better than in the USA, each is privately owned and operated and much higher standards. The one in my town treats me very good and has built a bulit proof tranny on my last truck which was a 2000 F350 on 49's with 600Hp and 800Tq, it came with a one year warranty and I had no problems. Anyways I will kept you up to date on the progress on my tranny.
__________________
2006 Pacific Blue H2 SUT
-Rancho Lift
-39.5" IROK Tires
-20" Rockstar wheels
-MagnaCharger S/C
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