I have a 09 6.4 with 62k on it. has a spartan tuner and 4in dual exhaust and thats it. ill be driving along and the truck will just die and shut off, watch the fuel rail pressure just keep dropping till it shuts off. it isnt throwing any codes sometimes can turn the key a few times and itll start back up other times i have to reprogram it and itll fire right back up and drive fine. it happens every two weeks r so but one time it did it 6 times in one day and wouldnt restart. i put both fuel filters in it and it ran good untill today. spartan says they doubt its the programer so i dont kno what else it could be. lift pump? itll run great for a week r two then it happens again i cant even go on a long drive or a trip somewhere bcuz im scared it will die and not restart. i love the truck but really dissapointed in it shoulda kept my 7.3 any help is greatfully appriciated thanks!!