Ford 1997 Aerostar Manual page 159

If the Engine Cranks but Does
Not Start or Does Not Start After
a Collision
Fuel Pump Shut-Off Switch
If the engine cranks but does not start or does
not start even after a small collision, the fuel
pump shut-off switch may have been activated.
The shut-off switch is a device intended to stop
the fuel pump when your vehicle has been
involved in a substantial jolt. Refer to the
Roadside Emergencies chapter.
Once the shut-off switch is activated, you must
reset the switch by hand before you can start
your vehicle.
Fuel pump shut-off switch location
If you see or smell fuel, do not reset the
switch or try to start your vehicle. Have
all the passengers get out of the vehicle
and call the local fire department or a
towing service.
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