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  1. Duramax Fifth Generation: 2011-2016 (LML)
    Helping a buddy with his truck. 2015 GMC head gasket is leaking. He has a 64mm turbo, down pipe, and "CALIBRATED" cp3 injection pump, and head stud kit to install while it is down. Will his truck run simply by bolting this stuff on?
  2. Electrical
    I have a 2013 gmc 3500 Denali dually. It’s been deleted and single stage tune. Took truck to shop to have the down pipes replaced since one of them cracked. They pulled cab and brought back to me with my e-brake light showing in dash, abs light showing in dash, trailer brake control not working...
  3. Duramax Fifth Generation: 2011-2016 (LML)
    I am new to this forum and am hoping someone on here will be able to point me in the right direction. I have read a hundred threads on this issue without finding one that is the same as what I have going on. So I figured it's time to post. My 2015 LML (159k) had a code for the Bank 2 NOX sensor...
  4. Duramax Fifth Generation: 2011-2016 (LML)
    I broke the crank on my original engine and replaced it with a reman. Prior to the breakdown, all things worked at optimal condition. Now that we have the new engine in, I'm showing 260-305 psi in the fuel system. Turns well and strong but won't start. Not enough pressure. I've primed the system...
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