99 7.3 diesel......IM kinda clueless on this one...My truck will be running fine then all of a sudden it just dogs out and barely wants to stay running... but if i shut it off and start it back up it starts running fine...sometimes for awile ..other times for only a few minutes...heres what ive done to it recently...first off i thought it was the fuel pump....put one on ...ran fine for awile..but it didnt last....so i thought for sure after that it was a cps....put a new one a those on prolly only a couple a months ago...ran fine up until now...ive replaced the fuel filter several times...the only other thing i can see wrong with it right now is i do have oil leaking from what i can tell the hpop lines...guess my question now is is it possible for them to leak enuf oil to where the injectors wont have enuf pressure to fire..that is if im understanding how the system works right....its not a terrible leak but im prolly 3 qts low in a coulple days of driving but ive been keeping the oil level up until i have time to get them fixed...the other daywhen it done this it was running so ruff that the o/d light came on and it started shiftin like crap.....i havent had time to go get the codes pulled but if we cant figure it out here i guess thats what ill have to go do...any help is appreciated