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HOW DOES FOUR-WHEEL
DRIVE WORK
Using the Electronic Shift On the
Fly System
(If Equipped)
This four-wheel drive system utilizes a
2-speed Electronic Shift On the Fly (ESOF)
transfer case which is also known as a
part-time system. This system offers the
driver two-wheel drive high, four-wheel
drive high, and four-wheel drive low as
available modes of operation. When you
select either four-wheel drive high or
four-wheel drive low, the system provides
mechanically locked four-wheel drive
power to both the front and rear wheels
for use in off-road or slippery conditions
such as deep snow, sand or mud. When
you select four-wheel drive low, the system
provides additional gearing for increased
torque multiplication for conditions like
deep sand, steep slopes, or pulling heavy
objects. Additionally, the system is capable
of recreational flat towing by putting the
transfer case into a neutral position. See
Recreationally Towing Your Vehicle
(page 384).
E339076
2022 Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202103, First-Printing
Four-Wheel Drive
(If Equipped)
For proper operation, make sure that each
hub is fully engaged and that both hub
locks are set to the same position (both
set to lock or both set to auto). To engage
lock, turn the hub locks completely
clockwise. To engage auto, turn the hub
locks completely counterclockwise.
The ESOF four-wheel drive system:
•
Provides 4x4 High engagement and
disengagement while the vehicle is
moving.
•
Operates by a rotary control located
on the instrument panel that allows
you select 4x2, 4x4 High or 4x4 Low
operation.
•
Uses auto-manual hub locks that can
be engaged and disengaged
automatically based on the 4x4 mode
you select.
•
Increases fuel economy when used in
the hub lock's recommended auto
mode.
Note: Auto-manual hub locks manually
lock by rotating the hub lock control from
auto to lock.
FOUR-WHEEL DRIVE
PRECAUTIONS
WARNING: Vehicles with a higher
center of gravity (utility and four-wheel
drive vehicles) handle differently than
vehicles with a lower center of gravity
(passenger cars). Avoid sharp turns,
excessive speed and abrupt steering in
these vehicles. Failure to drive cautiously
increases the risk of losing control of your
vehicle, vehicle rollover, personal injury
and death.
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Troubleshooting
