Ford 2004 F150 Classic Owner's Manual page 120

4. Move the transfer case lever through N (Neutral) directly to the
desired position. The LOW RANGE indicator will illuminate once the
transfer case has engaged.
• If the transfer case will not engage into 4L (4WD Low), drive abve 5
mph (8 km/h), then repeat steps 1 through 4.
Note: Some noise may be heard as the system shifts or engages; this is
normal.
Note: For proper operation in 4WD Low, ensure the transfer case shift
lever is moved entirely rearward into the 4L (4WD Low) positions and
that the LOW RANGE light is illuminated.
Using the N (Neutral) position
The transfer case N (Neutral) position overrides the transmission
and puts the vehicle in neutral regardless of transmission
gearshift lever position. The vehicle can move forward or
backward.
This position should only be used when towing the vehicle.
Do not leave the vehicle unattended with the transfer case in the
N (Neutral) position. Always set the parking brake fully and turn
off the ignition when leaving the vehicle.
Using the electronic shift 4WD system (if equipped)
2H (2WD High) - Power to the rear wheels only; used for street and
highway driving. Provides optimal smoothness and fuel economy at high
speeds.
4H (4WD High) - Used for extra traction such as in snow or icy roads
or in off-road situations. Not intended for use on dry pavement.
2004 F150 Classic (p96)
Owners Guide (post-2002-fmt)
USA English (fus)
4H
2H
4L
Driving
119