The 2000 Ford Expedition does
not have a readily accessible fuel pump shut-off switch like some other vehicles. There's no easily located button or switch in the cabin or engine bay. To shut off the fuel supply, you'd need to either disconnect the fuel pump relay (which requires some mechanical knowledge and locating the relay in the underhood fuse box) or disconnect the fuel pump electrical connection itself (a more involved process requiring expertise and potentially specialized tools).
Warning: Working with the fuel system is dangerous due to the flammability of gasoline. If you're not comfortable with automotive repair, it's best to leave this task to a qualified mechanic.
