the truck runs fine sometimes but most of the time it will have a bad misfire after starting. sometimes it will miss the whole time your driving it. the truck wont start when it was running fine before it was shut off. i can unhook one of the fuel lines on the inlet of the fuel filter and it starts. i have changed the fuel filter, and it seems to have fuel pressure. i havent got a chance to check the pressure when its not starting. it died once when i was driving. looking for some new ideas, thanks.