just want to be sure its fuel pump, the truck die and it hard to crank, I had to do the old trick, hit bottom of fuel tank couple time while other try to crank it and it crank, it stay running til I turn it off, and it wont crank again, some time it crank right away, but most time it wont. if I hit bottom of fuel tank while someone try crank it, it will crank and run fine til i shut it off.