I have an 04 3500 stock except for a K&N air filter. I went to pick up a trailer about 70 miles away, everything is fine. Got the trailer and started home, got almost all the way home and stopped to eat, still everything is fine. Came out of eating and truck would not start, turns over fine but nothing. Got it towed home and checked fuel in filter, it is pumping fine, checked fuses, all ok. Opened a line from fuel rail to injector, had fuel there but not sure of the pressure since I was by myself. Still nothing, no smoke like it's not getting fuel. Anyone got any ideas, only has 122500 miles.