Working With The Engine Off; Working With The Engine On - Ford F150 1997 Owner's Manual

could get caught in moving
parts. Take precautions with
long hair.
• Do not work on a vehicle with
the engine running in an
enclosed space, unless you are
sure you have enough
ventilation.
• Keep all lit cigarettes, open
flames and other lit material
away from the battery and all
fuel related parts.
If you disconnect the battery, the
engine must "relearn" its idle
conditions before your vehicle will
drive properly, as explained in
Battery in this chapter.

Working with the engine off

• Automatic transmission
1. Set the parking brake fully and
ensure the gearshift is securely
latched in P (Park).
2. Turn off the engine and remove
the key.
3. Block the wheels to prevent the
vehicle from moving unexpectedly.
• Manual transmission
1. Set the parking brake, depress
the clutch and place the gearshift
in 1 (First).
2. Turn off the engine and remove
the key.
3. Block the wheels to prevent the
vehicle from moving unexpectedly.

Working with the engine on

• Automatic transmission
Maintenance and care
155