Chevy and GMC Duramax Diesel Forum banner

tranny

  1. Durmax 06 limp mode PLZ HELP

    Test Forum
    So I just got this 06 a few weeks ago and car fax says one owner I get it driving feels fine. And out of no where one day it doesn’t start at all no crank nothing. Say I need to do maintenance on the 4x4. Abs break light and check engine. Replaced a relay started up for a few seconds dies.. I...
  2. Is my Transmission going bad?

    Drivetrain
    I have a 2007.5 GMC Serria 2500HD LMM with the 6-speed Allison Transmission 4 wheel drive, the other day I went and picked up a mini excavator and was towing it home when I noticed something iv never noticed before. I stopped at a red light in town and when the light turned green I let off the...
  3. Another power/Allison question

    Transmission Shop
    Like most of us I want to do a bunch of power upgrades to my engine. With that comes thoughts of building my tranny. Of course I'm driven by budget. I have read that you can electronically control the line pressure on the Torqueshift trannies which makes them handle more power in stock form...
  4. Your tranny just bit the big one!

    01-04.5 LB7 Duramax Powertrain
    So I have a feeling that my tranny is about to take a dirt nap. Which isn't that cool but it has been throwing some p0700 p0840 p0746 codes and its done that twice as of late. It started leaking fluid, i got that to stop now i can smell tranny fluid when i get out of the truck. Hasnt thrown any...
  5. I can smell tranny fluid...

    01-04.5 LB7 Duramax Powertrain
    Am I just paranoid?? So it started as a small leak between the tranny and engine. There was also a small leak next to my spin on filter this little aluminum tab thing (not sure what its for). Leak stopped fluid level is perfect but I can smell transmission fluid when I step out of the truck...
  6. installed a new nsbu switch and still having trouble with it

    Transmission Shop
    i have an 01 duramax that i just installed a new nsbu switch on. i thought that the old one went bad becuase the indicator light would only flash in reverse and wouldnt come on at all in any other gears. got in the truck and drove it down the road and it done fine, after driving it for a few...
  7. Help needed

    01-04.5 LB7 Duramax Powertrain
    Hey guy I was hoping to get some good advise I'm looking into buying a Duramax. It's a 03 gmc lb7 with 130k on it it's a slt the guy had put in brand new injectors a year ago here are some of the mods INSIDE -- ARC AUDIO SYSTEM, DASH MATCHING AUTO METER GUAGES, OUT SIDE-- FRESH NEW PAINT JOB...
  8. Need advise please help

    01-04.5 LB7 Duramax Powertrain
    Hey guy I was hoping to get some good advise I'm looking into buying a Duramax. It's a 03 gmc lb7 with 130k on it it's a slt the guy had put in brand new injectors a year ago here are some of the mods MOTOR- BRAND NEW INJECTORS, NEW HTT TURBO 64-71-13 SS HOUSING, FULLY BUILT SUNCOAST IV...
  9. HELP! 93 6.5 4L80E Trans issues

    6.5L Diesel Forum
    Hello I hope I am putting this thread in the right place, I have made a few searches and didnt come up with the info I need. My dad has a 93 plow truck its a 2500 4x4 with 6.5 and the 4L80 trans. The rig has about 140k on the odo, and the rig had never had any previous major failures, it was...
Top