tow Mercury Mountaineer 1999 s Owner's Guide

Trailer towing table (4x2)
GCWR (Gross Combined Weight Rating)/Trailer Weights
EngineRear
axle
ratioMaximum
GCWR-kg
(lbs.)Trailer Weight
Range-kg
(lbs.)
0-MaximumMaximum
frontal area of
trailer-m
2(ft2)
4.0L
SOHC3.554 082
(9 000)0-2 041
(0-4 500)4.64 (50)
4.0L
SOHC3.734 535
(10 000)0-2 649
(0-5 840)4.64 (50)
5.0L 3.734 990
(11 000)0-3 030
(0-6 680)4.64 (50)
Trailer towing table (4x4 and AWD automatic transmission)
4.0L
SOHC3.554 082
(9 000)0-2 041
(0-4 500)4.64 (50)
4.0L
SOHC3.734 535
(10 000)0-2 540
(0-5 600)4.64 (50)
5.0L 3.734 990
(11 000)0-2 921
(0-6 440)4.64 (50)
Notes:For high altitude operation, reduce GCW by 2% per 300 meters
(1 000 ft) elevation. For definition of terms and instructions on
calculating your vehicle's load, refer toVehicle loadingin this chapter.
Maximum trailer weights shown. The combined weight of the
completed towing vehicle and the loaded trailer must not exceed the
GCWR.
Towing a trailer over 1 588kg (3 500 lbs.) requires a weight distributing
hitch.
Do not exceed the GVWR or the GAWR specified on the Safety
Compliance Certification Label.
Towing trailers beyond the maximum recommended gross trailer
weight exceeds the limit of the vehicle and could result in
engine damage, transmission damage, structural damage, loss of
control, and personal injury.
Driving
164

Preparing to tow
Use the proper equipment for towing a trailer, and make sure it is
properly attached to your vehicle. See your dealer or a reliable trailer
dealer if you require assistance.
Hitches
Do not use hitches that clamp onto the vehicle bumper. Use a load
carrying hitch. You must distribute the load in your trailer so that 10% of
the total weight of the trailer is on the tongue.
Use a frame-mounted weight distributing hitch for trailers over 1
588 kg (3 500 lb).
Safety chains
Always connect the trailer's safety chains to the vehicle. To connect the
trailer's safety chains, cross the chains under the trailer tongue and allow
slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency
gives to you.
Do not attach safety chains to the bumper.
Trailer brakes
Electric brakes and manual, automatic or surge-type brakes are safe if
installed properly and adjusted to the manufacturer's specifications. The
trailer brakes must meet local and Federal regulations.
Do not connect a trailer's hydraulic brake system directly to your
vehicle's brake system. Your vehicle may not have enough
braking power and your chances of having a collision greatly increase.
The braking system of the tow vehicle is rated for operation at the
GVWR not GCWR.
Trailer lamps
Trailer lamps are required on most towed vehicles. Make sure your
trailer lamps conform to local and Federal regulations. See your dealer or
trailer rental agency for proper instructions and equipment for hooking
up trailer lamps.
Driving
165

Never connect any trailer lighting to the vehicle's taillamp
circuits, because it may damage the electrical system resulting in
fire. Contact your local Ford dealership for assistance in proper trailer
tow wiring installation. Additional electrical equipment may be
required.
Using a step bumper
The rear bumper is equipped with an integral hitch and requires only a
ball with a 19 mm (3/4 inch) shank diameter. The bumper has a 1 590 kg
(3 500 lb.) trailer weight and 159 kg (350 lb.) tongue weight capability.
Use a frame-mounted weight distributing hitch for trailers over 1 590 kg
(3 500 lb).
Driving while you tow
Do not drive faster than 88 km/h (55 mph) when towing a trailer.
Speed control may shut off if you are towing on long, steep grades.
When towing a trailer:
²Use a lower gear when towing up or down steep hills. This will
eliminate excessive downshifting and upshifting for optimum fuel
economy and transmission cooling.
²Anticipate stops and brake gradually.
Exceeding the GCWR rating may cause internal transmission
damage and void your warranty coverage.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to your Scheduled Maintenance guide
for more information.
Trailer towing tips
²Practice turning, stopping and backing up in an area before starting on
a trip to get the feel of the vehicle trailer combination. When turning,
make wider turns so the trailer wheels will clear curbs and other
obstacles.
²Allow more distance for stopping with a trailer attached.
²The trailer tongue weight should be 10% of the loaded trailer weight.
Driving
166

²After you have traveled 80 km (50 miles), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
²When stopped in traffic for long periods of time in hot weather, place
the gearshift in P (Park) and increase idle speed. This aids engine
cooling and air conditioner efficiency.
²Vehicles with trailers should not be parked on a grade. If you must
park on a grade, place wheel chocks under the trailer's wheels.
Launching or retrieving a boat
When backing down a ramp during boat launching or retrieval,
²Do not allow the static water level to rise above the bottom edge of
the rear bumper and
²Do not allow waves to break higher than 15 cm (six inches) above the
bottom edge of the rear bumper.
Exceeding these limits may allow water to enter critical vehicle
components, adversely affecting driveability, emissions, reliability and
causing internal transmission damage.
Replace the rear axle lubricant anytime the axle has been submerged in
water. Rear axle lubricant quantities are not to be checked or changed
unless a leak is suspected or repair required.
Disconnect the wiring to the trailer before backing the trailer into the
water. Reconnect the wiring to the trailer after the trailer is removed
from the water.
Recreational towing (all wheels on the ground)
Do not tow your vehicle with all wheels on the ground as vehicle damage
may occur.
LUGGAGE RACK
Maximum load is 75 kg (165 lbs), evenly distributed. If it is not possible
to distribute the load, position it as far rearward as possible. Adjustable
tie down loops (not equipped) must be used to secure the load.
Driving
167

To adjust cross-bar position:
1. Slide the locking switches at each
end of the crossbar toward the rear
of the vehicle until UNLOCKED
appears.
2. Slide cross-bar to the desired
location.
3. Lock the cross-bar into position
by pushing the locking switches on
each end of the crossbar toward the
front of the vehicle.
The rear rack can be completely
removed in the UNLOCKED position
by sliding the cross-bar rearward
until it frees the guides.
Driving
168

The fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingDescription
1 7.5A Power Mirror Switch, Power Antenna
2 7.5A Blower Motor Relay, Air Bag Diagnostic
Monitor
3 7.5A Left Stop/Turn Trailer Tow Connector
4 10A Left Headlamp
5 10A Data Link Connector (DLC)
6 7.5A Rear Blower Motor (Without EATC)
7 7.5A Right Stop/Turn Trailer Tow Connector
8 10A Right Headlamp, Foglamp Relay
9 7.5A Brake Pedal Position Switch
10 7.5A Speed Control/Amplifier Assembly, Generic
Electronic Module (GEM), Shift Lock
Actuator, Blend Door Actuator, A/C - Heater
Assembly, Flasher, Overhead Console, Load
Leveling Module
11 7.5A Instrument Cluster
12 7.5A Washer Pump Relay, Rear Washer Pump
Relay
13 20A Brake Pedal Position Switch, Brake Pressure
Switch
14 10A 4 Wheel Anti-Lock Brake System (4WABS)
Module, 4WABS Main Relay
15 7.5A Instrument Cluster
16 30A Windshield Wiper Motor, Wiper Hi-Lo Relay,
Wiper Run/Park Relay
17 25A Cigar Lighter
18 25A Drivers Unlock Relay, All Unlock Relay, All
Lock Relay
19 25A PCM Power Diode
20 7.5A RAP Module, Generic Electronic Module
(GEM), Radio, Cellular Phone
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Fuse/Relay
LocationFuse Amp
RatingDescription
21 15A Flasher (Hazard)
22 20A Auxiliary Power Socket
23 Ð Not Used
24 7.5A Clutch Pedal Position (CPP) Switch, Starter
Interrupt Relay, Anti-Theft
25 7.5A Generic Electronic Module (GEM),
Instrument Cluster, Securi-Lock
26 10A Battery Saver Relay, Electronic Shift Relay,
Interior Lamp Relay, Electronic Shift Control
Module
27 15A DRL, Backup Lamps Switch, DTR Sensor
28 7.5A Generic Electronic Module (GEM), Radio,
Memory Seat
29 10A Radio
30 15A Park Lamp/Trailer Tow Relay
31 Ð Not Used
32 10A Heated Mirror
33 15A Headlamps, Daytime Running Lamps (DRL)
Module, Instrument Cluster
34 7.5A Rear Integrated Control Panel, CD
35 7.5A Rear Blower Motor (With EATC)
36 7.5A EATC Memory, CD, Rear Integrated Control
Panel, Memory Seat, Message Center
Roadside emergencies
174

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.
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178

Stowing the spare
1. Lay the tire on the ground with the valve stem facing up.
2. Slide the wheel under the vehicle
and install the retainer through the
wheel center.
3. Turn the jack handle clockwise
until the tire is raised to its original
position underneath the vehicle. The
jack handle ratchets when the tire is
raised to the stowed position. It will
not allow you to overtighten.
Tire change procedure
To prevent the vehicle from moving when you change a tire, be
sure the parking brake is set, then block (in both directions) the
wheel that is diagonally opposite (other side and end of the vehicle) to
the tire being changed.
If the vehicle slips off the jack, you or someone else could be
seriously injured.
On vehicles equipped with Air Suspension, turn OFF the Air
Suspension switch prior to jacking, hoisting or towing your
vehicle.
Refer to the instruction sheet for detailed tire change instructions.
1. Park on a level surface, activate
hazard flashers and set the parking
brake.
2. Place gearshift lever in P (Park)
and turn engine OFF.
Roadside emergencies
179

To lessen the risk of
personal injury, do not put
any part of your body under the
vehicle while changing a tire. Do
not start the engine when your
vehicle is on the jack. The jack is
only meant for changing the tire.
²Never use the front or rear
differential as a jacking point.
8. Remove the lug nuts with the lug wrench.
9. Replace the flat tire with the spare tire, making sure the valve stem is
facing outward. Reinstall the lug nuts, cone side in, until the wheel is
snug against the hub. Do not fully tighten the lug nuts until the wheel
has been lowered.
10. Lower the wheel by turning the jack handle counterclockwise.
11. Remove the jack and fully
tighten the lug nuts in the order
shown.
12. Stow the flat tire, jack and lug
wrench. Make sure the jack is
fastened so it does not rattle when
you drive.
13. Turn ON the air suspension
switch (if equipped).
14. Unblock the wheels.
1
4 3
52
Roadside emergencies
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