while driving the truck it acts like it running out of gas.
a missing in engine while running, acts like running out of gass? on 1996 Ford F-150
What is Overall condition of Ignition system (Tune Up) . Diagnostic of fuel system should be performed using a fuel gauge and inspecting for proper volume. Fuel filter condition? has it been replaced or inspected? Your local repair shop should Perform a full Diagnostic of all systems including computer control system for stored trouble codes.