1999 Mercury Mountaineer four wheel drive

INFORMATION ABOUT THIS GUIDE
The information found in this guide was in effect at the time of printing.
Ford may change the contents without notice and without incurring
obligation.
SPECIAL NOTICES
Notice to owners of utility type vehicles
Before you drive your vehicle, please read this Owner's Guide carefully.
Your vehicle is not a passenger car. As with other vehicles of this type,
failure to operate this vehicle correctly may result in loss of control or an
accident.
Be sure to readDriving off roadin theDrivingchapter as well as the
ªFour Wheelingº supplement included with 4WD and utility type vehicles.
Using your vehicle as a snowplow
Do not use this vehicle for snowplowing.
Using your vehicle as an ambulance
Do not use this vehicle as an ambulance.
Your vehicle is not equipped with the Ford Ambulance Preparation
package.
Introduction
3

High beams
Illuminates when the high beam
headlamps are turned on.
Anti-theft system (if equipped)
Refer toSecuriLockypassive
anti-theft systemin theControls
and featureschapter.
Charging system
Illuminates when the ignition is
turned to the ON position and the
engine is off. The light also
illuminates when the battery is not
charging properly, requiring
electrical system service.
Check gage
Illuminates when the engine coolant
temperature is high, the engine oil
pressure is low or the fuel gauge is
at or near empty. The ignition must
be in the ON position for this lamp to illuminate. The lamp will also
illuminate for several seconds after the ignition is turned to the ON
position. Refer toEngine coolant temperature gauge, Engine oil
pressure gaugeorFuel gaugein this chapter for more information.
Four wheel drive low (if equipped)
This light momentarily illuminates
when the ignition is turned to ON.
Illuminates when four-wheel drive
low is engaged. If the light continues
to flash have the system serviced.
THEFT
CHECK
GAGE
4WD
LOW
Instrumentation
9

Four wheel drive high (if equipped)
This light momentarily illuminates
when the ignition is turned to ON.
Illuminates when four-wheel drive
high is engaged. If the light
continues to flash have the system
serviced.
Door ajar
Illuminates when the ignition is in
the ON or START position and any
door is open.
O/D off
Illuminates when the ignition is
turned to the ON position and
transmission control switch has
been pushed. When the light is on,
the transmission does not shift into
overdrive. If the light does not come on when the transmission control
switch is depressed or if the light flashes when you are driving, have
your vehicle serviced.
Check air suspension (if equipped)
Illuminates momentarily when the
ignition is turned to the ON position
and the engine is OFF. The light
also illuminates when the air
suspension system requires
servicing.
For information, refer toAir suspension systemin theDrivingchapter.
Speed control
This light comes on when either the
SET/ACCEL or RESUME controls
are pressed. It turns off when the
speed control OFF control is
4WD
HIGH
DOOR
AJAR
O/D
OFF
CHECK
SUSP
SPEED
CONT
Instrumentation
10

Forced Downshifts
To gain acceleration in(Overdrive) or Drive (O/D OFF) when passing
another vehicle, push the accelerator to the floor. The transmission will
downshift to the appropriate gear: fourth, third, second or first gear.
FOUR-WHEEL DRIVE (4WD) OPERATION (IF EQUIPPED)
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.
All utility-type vehicles and 4WD vehicles have special design and
equipment features to make them capable of performing in a wide
variety of off-road applications. Specific design characteristics give them
higher centers of gravity than ordinary passenger cars.
Utility and four-wheel drive vehicles arenotdesigned for
cornering at speeds as high as passenger cars any more than
low-slung sports cars are designed to perform satisfactorily under
off-road conditions. Avoid sharp turns or abrupt maneuvers in these
vehicles.
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.
CONTROL-TRAC AUTOMATIC FOUR-WHEEL DRIVE SYSTEM
(IF EQUIPPED)
The 4WD system uses all four wheels to power the vehicle. This
increases traction, enabling you to drive your 4x4 over terrain and road
conditions not normally traveled by two-wheel drive vehicles.
Power is supplied to all four wheels through a transfer case that allows
you to select a four-wheel drive mode best suited for your current
driving conditions.
Driving
152

Positions of the Control-Trac system
The Control-Trac system functions in three modes:
²The 4WD AUTO mode provides
four-wheel drive with full power
delivered to the rear axle, and to
the front axle as required for
increased traction. This is
appropriate for normal on-road
operating conditions, such as dry
road surfaces, wet pavement,
snow and gravel.
²The 4WD HIGH mode provides
four-wheel drive with full power
to both axles. It is only intended
for severe winter or off-road
conditions, such as deep snow
and ice (where no dry or wet
pavement remains uncovered),
and shallow sand.
²The 4WD LOW mode supplies
four-wheel drive with full power
to both axles and includes a
lower gear ratio for low-speed. It
is only intended for off-road
applications that require extra
power including deep sand, steep
grades and pulling a boat and
trailer out of the water.
The vehicle should not be operated in 4WD HIGH and 4WD LOW
on dry or merely wet pavement. Doing so will produce excessive
noise, increase tire wear and may damage driveline components.
These modes are intended for use only on consistently slippery or
loose surfaces.
HIGH4x4
LOW AUTO
HIGH4x4
LOW AUTO
HIGH4x4
LOW AUTO
Driving
153

If your vehicle is equipped with 4WD or AWD, a spare tire of a
different size than the road tires should never be used. Such a
tire could result in damage to driveline components and make the
vehicle difficult to control.
Utility and four-wheel drive vehicles arenotdesigned for
cornering at speeds as high as passenger cars any more than
low-slung sports cars are designed to perform satisfactorily under
off-road conditions. Avoid sharp turns or abrupt maneuvers in these
vehicles.
Using the Control-Trac system
Shifting between 4WD AUTO and 4WD HIGH
When you move the control to 4WD
HIGH, the indicator light will
illuminate in the instrument cluster.
When you move the control to 4WD
AUTO, the indicator light will turn
off.
Either shift can be done at a stop or
while driving at any speed.
Shifting from 4WD AUTO or 4WD HIGH to 4WD LOW
1. Bring the vehicle to a stop.
2. Depress the brake.
3. Place the gearshift in N (Neutral).
4. Move the 4WD control to the
4WD LOW position.
HIGH
LOW AUTO4x4
HIGH
LOW AUTO4x4
Driving
154

Shifting from 4WD LOW to 4WD AUTO or 4WD HIGH
1. Bring the vehicle to a stop.
2. Depress the brake.
3. Place the gearshift in N (Neutral).
4. Move the 4WD control to the
4WD AUTO or 4WD HIGH position.
Driving off-road with 4WD
Your vehicle is specially equipped for driving on sand, snow, mud and
rough terrain and has operating characteristics that are somewhat
different from conventional vehicles, both on and off the road.
Maintain steering wheel control at all times, especially in rough terrain.
Since sudden changes in terrain can result in abrupt steering wheel
motion, make sure you grip the steering wheel from the outside. Do not
grip the spokes.
Drive cautiously to avoid vehicle damage from concealed objects such as
rocks and stumps.
You should either know the terrain or examine maps of the area before
driving. Map out your route before driving in the area. For more
information on driving off-road, read the ªFour Wheelingº supplement in
your owner's portfolio.
If your vehicle gets stuck
If the vehicle is stuck in mud or snow it may be rocked out by shifting
from forward and reverse gears, stopping between shifts, in a steady
pattern. Press lightly on the accelerator in each gear.
Do not rock the vehicle for more than a few minutes. The
transmission and tires may be damaged or the engine can
overheat.
Do not spin the wheels at over 56 km/h (35 mph). The tires may
fail and injure a passenger or bystander.
HIGH
LOW AUTO4x4
Driving
155

Sand
When driving over sand, try to keep all four wheels on the most solid
area of the trail. Do not reduce the tire pressures but shift to a lower
gear and drive steadily through the terrain. Apply the accelerator slowly
and avoid spinning the wheels.
Mud and water
If you must drive through high water, drive slowly. Traction or brake
capability may be limited.
When driving through water, determine the depth; avoid water higher
than the bottom of the hubs (if possible) and proceed slowly. If the
ignition system gets wet, the vehicle may stall.
Once through water, always try the brakes. Wet brakes do not stop the
vehicle as effectively as dry brakes. Drying can be improved by moving
your vehicle slowly while applying light pressure on the brake pedal.
After driving through mud, clean off residue stuck to rotating driveshafts
and tires. Excess mud stuck on tires and rotating driveshafts causes an
imbalance that could damage drive components.
If the transmission, transfer case or front axle are submerged in water,
their fluids should be checked and changed, if necessary.
Water intrusion into the transmission may damage the
transmission.
If the rear axle is submerged in water, the rear axle lubricant should be
checked and changed, if necessary. The rear axle is filled with a
synthetic lubricant and does not normally require a lubricant change for
the life of the vehicle. Rear axle lubricant quantities should not need to
be checked unless a leak is suspected.
Driving on hilly or sloping terrain
When driving on a hill, avoid driving crosswise or turning on steep
slopes. You could lose traction and slip sideways. Drive straight up,
straight down or avoid the hill completely. Know the conditions on the
other side of a hill before driving over the crest.
When climbing a steep hill, start in a lower gear rather than downshifting
to a lower gear from a higher gear once the ascent has started. This
reduces the strain on the engine.
When descending a steep hill, avoid sudden braking. Shift to a lower gear
when added engine braking is desired.
Driving
156