Lmm truck 70,000 miles the other day i was drib=ving and it flashed up 0% fuel filter life and then started running horribly. If u putted along it was fine but if u mashed it it would act like it was in limp mode. Anyway got to where i was going cut the truck off and just for curiousity tried to restart the truck no luck. Wouldnt start. So i primed it and it fired and ran for about 5 seconds. Went to auto zone put new filter on and almost the same problem. Now you have to prime to start and keep pumping on it to get it to keep running. Can see no visible fuel leaks..any ideas?