Auto 101 Basics are Suck Squeeze Bang and Blow. Concentrate on the Suck part of Fords. No plastic bag sucked into the air cleaner housing ? Fuel pump work?Got a few gallons of fresh Diesel you can put in tank, just in case all it is inaccurate fuel sender issue. Did you check for water in drains and test low side supply pressure and take a fuel sample testing low side volumne in to a glass container, rule out a clogged fuel filter?