Runs and stalls after injector swap

[Benwood]

Helped a buddy change passengers side injectors in his 06 6.0 which was not fun, Got it all back together started after a little cranking, probably a minute or so accumulated cranks. Ran fine no missing or chugging, let it run for 20 min checked everything. He drove home 20 miles, parked it and this mornin it was running rough and doggy, 5 miles into the trip it straightened up. He floored it mid day and it quit, now it will start if you cycle the key several times (running fuel pump) and run for 30 sec~ less if you push the pedal. Changed fuel filters left top off engine filter and it only has 1" fuel in after dying, cycle the key on nothing but bubbles, for two key cycles and on the third it will start pumping fuel, every time, Heard it may be lift pump an unrelated problem, i hope it is we will install tomorrow any different ideas? Sorry for the long post just wanted to include all the info i could, 100% Stock

[Benwood]

Bump up to the top

[dannyboy950]

sounds like you are getting air in somewhere,check the cap on the fuel pump filter, make shure all the lines to the pump are snapped in securely, look for any signs of leaking around the pump area. Check the lines going back to the tank.

[tkpatter]

Check the plug and oring on the frame mounted primary fuel filter. I have noticed trucks running off road and fuel from questionable sources have had this plug and oring corrode and deteriorate. I agree with the pulling are diagnosis.