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check all fuses under the dash,under hood first. check power and ground on fuel pump in the truck. if power and ground are good and fuel pump is not running you probably have the defected fuel pump, if power is not at the pump you probably have blown fuse or defective relay under dash,now if you have no ground or ground side have voltage this video is how to repair ground pulse. learn how to use relay is explained at the 3/4 of video