Ford 1996 Taurus Manual page 67

For best results, plug the heater in at least three
hours before you start your vehicle. Using the
heater for longer than three hours will not
damage the engine, so you can plug it in at
night to start your vehicle the following
morning.
To prevent electrical shock, do not use
your heater with ungrounded electrical
systems or two-pronged (cheater) adapters.
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.
Once the shut-off switch is activated, you must
reset the switch by hand before you can start
your vehicle. If you have a sedan, the switch is
on the right side of the trunk behind the trunk
liner. If you have a wagon, it is behind the
service panel on the right side of the cargo area.
RWARNING
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