Four-Wheel Drive (4Wd) Operation - Ford f150 2001 Service Manual

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FOUR-WHEEL DRIVE (4WD) OPERATION (IF EQUIPPED)
For important information regarding safe operation of this type
of vehicle, see Preparing to drive your vehicle in this chapter.
When Four–wheel drive (4WD) is engaged, power is supplied to all four
wheels through a transfer case. 4WD power can be selected when
additional driving power is desired.
If equipped with the Electronic Shift 4WD System, and the
instrument panel control is moved to 4WD Low while the vehicle
is moving, the system will not engage and no damage will occur to
the 4WD system. Before 4WD Low can be engaged, the vehicle
must be brought to a complete stop with the brake pedal
depressed and the transmission placed in neutral (or the clutch
pedal depressed on manual transmissions).
4WD operation is not recommended on dry pavement. Doing so could
result in difficult disengagement of the transfer case, increased tire wear
and decreased fuel economy.
4WD system indicator lights
The 4WD system indicator lights illuminate only under the following
conditions. If these lights illuminate when driving in 2WD, contact your
Ford dealer as soon as possible.
• 4X4—momentarily illuminates
after the engine is started.
Illuminates when 4H (4WD High)
is engaged.
• LOW RANGE—momentarily
illuminates with the key in the
ON position and after the engine
is started. Illuminates when 4L
(4WD Low) is engaged.
Using lever-operated 4WD system (if equipped)
2H (2WD High) – Power to rear axle only.
4H (4WD High) – Power to front and rear axles.
N (Neutral) – No power to either axle.
4L (4WD Low)– Power to front and rear axles at reduced speed.
I n f o r ma t i o n P r o v i d e d b y :
Driving
4x4
LOW
RANGE
167

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