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lml disaster

  1. 11-16 LML Duramax Powertrain
    Hey guys, sorry to bother. I'm starting to scratch my head wondering where to begin the diagnostic process. So the truck acted like it had bad batteries, and would begin to crank for a few seconds, but then click. So, I tried checking batteries, and they said 12.3V @ both batteries. (Was using a...
  2. How To's, DIY and Write ups
    Hey guys, I have a 2014 GMC 2500 with the LML and had the infamous CP4 failure the other day at 118k. Im currently pulling the injectors and got 1-7 done but I'm having a total brain block on how to get the 8th injector high pressure line off the fuel rail without pulling the turbo. I cant get a...
  3. General Discussion
    Bough a 2012 lml Duramax in 2016. The first year was great, year two got home one day with the truck running rough and wouldn't restart after that. Got it towed to dealership only to find out if was a cp4 failure with a 15,000+ repair bill. Get it back two weeks later only to have the def...