Duramax won't run, fuel or fuel pump problem?
Jumped in my truck yesterday (2005 Duramax 6.6 with 160k) and it cranked fine, won't run. Replaced fuel filter and primed many, many times. It would run about 3 seconds until, it seems, ran out of fuel. When I pump the primer with the bleed screw closed, a small amount of fuel comes out of the under the primer housing. Is that normal? The button does get firm.
When I open the bleed screw, it seems a small amount of air bubbles continue to come out. I had my friend continue pumping the primer button while I cranked it. The engine ran as long as he pumped the primer. As soon as he stopped, the engine stopped. Is it possible the primer housing has a leak and it is aerating or do you think the injector pump is gone? Other suggestions? My truck is out of town in Modesto CA. Anyone reasonable there if I have to have it towed in? Thanks!!