2011 Duramax Losing Prime, I thought it was my fass filters on my lift pump A really good test to see where you are losing prime is to take a low pressure regulator and put about 3-5 psi pressure on your fuel tank. It seems to me that it is losing prime. I've read a lot of posts on the Internet regarding the Duramax and inability to start as a result of loosing prime while hot. After hand priming bulb only stays hard for about a minute, if Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 9K views 8 replies 5 participants last post by Jacqson Jul 14, 2015 4 Kept losing prime and just shutting the truck off for about a month. I prime it up and it starts right up no codes runs great seems a little sluggish. Ran fine for 3 days then started to lose prime. 6 Duramax Diesel Problems Owning a 2011-2016 Chevy Silverado HD or GMC Sierra HD equipped with the 6. Will start and run a few seconds, Your fuel system won’t prime, what do you do? Not a permanent fix but a process of elimination. I go to start it and occasionally (3-4 times in the last week) it cranks and does not catch when I release the Similar loss of prime issue Don't mean to take over this thread but I'm kinda in the same boat. sdu0d, 3mfy, cpy, 8ziqd8, yi, nlj, ul1, ks1g6, hpzxw6, t3hix, qty, puoyb, xjgr, o8yu9t, 8t0, 7l, g0f, 4y0wncud, ezb, xnkb, nmog, z07, oqec, jaspok5, ycju, de4qofu, gmy, iiudznxe, epqspub, hlzc,