1999 Mercury Mountaineer 4WD

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
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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
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155

When speed control is on and you are driving uphill, your vehicle speed
may drop considerably, especially if you are carrying a heavy load.
If vehicle speed drops more than 16 km/h (10 mph), the speed control
will cancel automatically. Resume speed with accelerator pedal.
If speed control cancels after climbing the hill, reset speed by pressing
and holding the SET ACCEL button (to resume speeds over 50 km/h (30
mph).
Automatic transmissions may shift frequently while driving up steep
grades. Eliminate frequent shifting by shifting out of
(Overdrive) into
D (Drive).
Driving on snow and ice
A 4WD vehicle has advantages over 2WD vehicles in snow and ice but
can skid like any other vehicle.
Avoid sudden applications of power and quick changes of direction on
snow and ice. Apply the accelerator slowly and steadily when starting
from a full stop.
When braking, apply the brakes as you normally would. In order to allow
the anti-lock brake system (ABS) to operate properly, keep steady
pressure on the brake pedal.
Allow more stopping distance and drive slower than usual. Consider
using one of the lower gears.
ALL WHEEL DRIVE (AWD) SYSTEM (IF EQUIPPED) (5.0L ENGINES
ONLY)
Your vehicle is equipped with a full-time All Wheel Drive (AWD) transfer
case. Power is supplied to all four wheels all the time with no need to
shift between two-wheel drive and four-wheel drive.
For the lubricant specification and refill capacity of the AWD transfer
case refer toCapacities and specificationschapter.
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.
Driving
157

CHANGING THE TIRES
If you get a flat tire while driving, do not apply the brake heavily.
Instead, gradually decrease your speed. Hold the steering wheel firmly
and slowly move to a safe place on the side of the road.
Spare tire information
Your vehicle is equipped with a spare tire that must be used for
emergencies only. The spare tire for your vehicle is not as wide as a
regular tire and is designed for emergency use only. Replace this tire
with a full-size tire as soon as possible.
If your vehicle is equipped with 4WD or AWD, a spare tire of a
different size than the road tires should not be used. Such a tire
could result in damage to driveline components and make the
vehicle difficult to control.
Location of the spare tire and tools
The spare tire and tools for your vehicle are stowed in the following
locations:
Tool Location
Spare tire Under the vehicle, just in front of
the rear bumper
Jack, lug nut wrench Left rear quarter panel behind
interior trim
Jack handle Lower rear seat base
Removing the spare tire
1. Insert the jack handle into the
rear bumper opening.
The handle will stop moving and
forward resistance to turning will be
felt when properly engaged.
2. Turn the handle counterclockwise
until tire is lowered to the ground,
the tire can be slid rearward and the
cable is slightly slack.
3. Remove the retainer from the spare tire.
Roadside emergencies
178

Fluid Ford Part
NameApplication
Capacity
Transmission
fluidMotorcraft
MERCONtV
AT F4R70W
Automatic with
5.0L V8 engine
(AWD)13.1L
(13.9 quarts)
5R55E
Automatic with
4.0L SOHC V6
engine (4x2)9.5L
(10.0 quarts)
5R55E
Automatic with
4.0L SOHC V6
engine (4x4)9.8L
(10.3 quarts)
Transfer case Motorcraft
MERCONtAT FAWD 1.25L
(1.3 quarts)
4WD 1.4L
(1.5 quarts)
Engine coolant
1See footnote 4.0L SOHC V6
engine13.2L
(14.0 quarts)
5.0L V8 engine 14.9L
(15.7 quarts)
Front axle fluid Motorcraft
80W90 Axle
Lubricant4x4 vehicles
1.7L
(1.8 quarts)
Rear axle
lubricant
2Motorcraft SAE
80W90 Premium
Rear Axle
LubricantRefer to
footnote 3
2.9-3.1L
(5.5-5.8 pints) Motorcraft SAE
75W140 High
Performance
Synthetic Rear
Axle LubricantRefer to
footnote 4
Windshield
washer fluidUltra-Clear
Windshield
Washer
ConcentrateAll vehicles
2.6L
(2.7 quarts)
Capacities and specifications
234