Dieselguy123
Full Access Member
Hey all, My 6.9 was running great and then all the sudden I go to start it up and nothing??? I changed the fuel filter and the injector return lines and still nothing. It acts like it wants to start(sounds like a few cylinders are trying to fire but nothing more than that....It also puffs smoke when you are cranking it. The glow plugs are all good, I just tested them all. What could be wrong? Thanks in advance...Brad King T.C. Michigan.