Where is the fuse for fuel system in a ford econoline 350 ford box truck?

In a Ford Econoline 350 box truck, the fuse for the fuel system is typically located in the fuse box under the dashboard on the driver's side or in the engine compartment. You can identify the specific fuse by consulting the owner's manual, which provides a diagram of the fuse box and indicates which fuse corresponds to the fuel pump or fuel system. If you're unable to locate the manual, a visual inspection of the fuses may be necessary to find the one labeled for the fuel system.