FORD 2003 Expedition v.4 - Manual (Page 247)

FUEL PUMP SHUT-OFF SWITCH FUEL
RESET
This device stops the electric fuel pump from sending fuel to the engine
when your vehicle has had a substantial jolt.
After an accident, if the engine cranks but does not start, this switch
may have been activated.
The fuel pump shut-off switch is
located in the left rear quarter trim
panel, near the liftgate. The switch
is located behind two access panels;
the second panel has a tab that
needs to be pushed down to remove
the access panel door.
Roadside Emergencies
247