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  1. Duramax Fifth Generation: 2011-2016 (LML)
    I’m new to duramax please help if anyone knows the issue I’m having there is a higher idle check engine light is on and dpf full light shows when I start the truck but goes out about 5 mins later I unscrewed where the 9th injector goes into down pipe and it’s covered in soot
  2. Duramax Fifth Generation: 2011-2016 (LML)
    I am new to this forum. Have not been on any automotive forum in 12+ years so forgive me if this information has been thoroughly covered else where. I drive a 2013 LML LTZ crew cab. 145,000 miles. Second owner. Have owned and driven daily for 3.5 years. Long story short 6 months ago I kept...
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