Chevy and GMC Duramax Diesel Forum banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!

lb7 electrical issues

  1. General Discussion
    Hello, I have a 2003 GMC Sierra Lb7 and I am having multiple intermittent electrical issues, my windows won’t go up and down, my nothing works in my gauge cluster except speedometer and tachometer, my ac doesn’t work, ABS, Brake light, and battery lights come on, my power locks won’t work...