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wont start

  1. Duramax Fifth Generation: 2011-2016 (LML)
    Today i went to go change the fuel filter on my truck but forgot to pressure the system and turned it on. It stayed on for 10 seconds and stalled out. Went on to prime with screw closed and got all air out. Did it like 5 times. Checked the Schrader valve and it had some air in it too. Did that...
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