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  1. Drivetrain
    I have an issue with my 2005 2500HD Duramax where the power steering and brakes don't work for the first few seconds after starting the truck. After a few seconds they start to work normally. I have replaced the power steering pump, all power steering hoses, and the hydro boost unit in the...
  2. 11-16 LML Duramax Powertrain
    The other night my truck got stuck in park. The shifter would not budge at all. Replaced the brake position sensor. As well as the transmission shift interlock solenoid. Now the truck shifts, but its shifting without pressing the brake pedal at all. Anyone have any insight to this?
  3. Towing & Hauling
    I am acquiring my dad's 07.5 GMC and would like to know if I the harness is there to install the factory brake control or if anyone has ever done this? Thanks in advance.
  4. 07.5-10 LMM Duramax Powertrain
    I'm still a little new to this game although I've had my truck for over a year now. I saw on someone's sig that they have the Banks Exhaust Brake on their 2007.5 LMM. I've also read that using EFI Live the Turbo Brake can be enabled. How does all of this work? Is it a hardware thing or just...
  5. 911 Problems Forum
    Help, I'm really in a pickle. I have a 1990 Pace Arrow on a Chevy P-30 chassis. I can not get the parking brake to function. Replaced power steering pump, front calipers and flushed system with new fluid. I get pressure from the spool valve but no pressure to parking brake. Every mechanic I...