As M_H_Ritzel mentioned, your truck prolly has 2 fuel pumps. It sounds like the high pressure 1 isn't pumping. Start checking fuses for pumps, & or (guessing here that the fuel tank switch is electronic) the fuel transfer switch fuse. To prove out that in fact both tank pumps are working (switch to 1 then the other), as the key is turned on. You should have your ear (or a screwdriver) up to the tank to hear pump run. Also. Switching valve or high pressure pump may have an in line filter which can be clogged (my 1997 F250 has in line filter before switching valve), & needs to be cleaned or replaced. Ask at your local auto parts if you can see their fuel system diagram for your truck. Said diagram should show everything related to this system.
Beyond this above I can't help ya anymore, i'm stumped ! To second guess you. Might ya have an ice blockage somewhere? Good Luck !
Saturday, January 15th, 2011 AT 10:26 PM