Ive got a 2000 SD and one day i was driving and had a loss of power with shuddering the the truck died i reprimed it then it drovefor about a mile then died this repeated until i got it home. Ive replaced the fuel pump and cleaned out the lines and tank and its still doing the same thing i popped off the filter and my pump isnt pumping fuel to the bowl i prime it and getting it pumping right then it drives for a few miles then starts up again. I'm thinking the fuel line is corroded but ford doesnt make the line anymore and i cant find one anywhere does anyone have any ideas to what it is or should i just keep replacing parts until i get it fixed? Any advice is helpful.