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2012 duramax

  1. General Discussion
    Hey guys so i have a 2012 gmc duramax slt, i have 72k miles on it. Its deleted and tuned 100hp, werlic custom air intake. New aftermarket tire rods super good quality. Over time this sound started coming on its a werid knocking sound. It only happens in the front of my vehicle, it only happens...
  2. 11-16 LML Duramax Powertrain
    My Lml is throwing the P0137 code which according to my diagnostic tool is Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2). I was under the impression that duramax didn't use oxygen sensors so Im at a total loss. Does anyone have any ideas at what the problem is and how to fix it...
  3. 2011-2016 (Non Powertrain)
    Hi All New to the forum (even though i created a profile several years ago, just never used it). Have a question about the grill on my 2012 Chevrolet Silverado 2500hd LT. I am looking for a specific grille but can't seem to find it. I am looking for one similar to the pictures below. I bought...
  4. Cranks but won't fire

    Bought this truck 2 weeks ago, ran perfect. Code P0087 popped up for fuel rail/system - too low. I dropped the performance level on the tuner(mini maxx). After that it would crank but not fire. After a while it would crank crank crank then fire up running rough. I replaced fuel filter and head...
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