engine FORD EXPLORER 2006 4.G Owner's Guide

4WD
GCWR (Gross Combined Weight Rating)/Trailer Weight
Engine Rear axle ratio Maximum
GCWR-lb. (kg)Trailer weight
range-lb. (kg)
(0-Maximum)
4.0L SOHC Class
II towing3.55 8000 (36 29) 0±3230 (0±1465)
4.6L* Class II
towing3.55 8000 (3629) 0±3140 (0±1424
)
4.0L SOHC Class
III/IV towing3.73 10000 (4536) 0±5210 (0±2363)
4.6L* Class III/IV
towing3.55 12000 (5443) 0±7120 (0±3330)
Notes:- For high altitude operation, reduce GCW by 2% per 1,000 ft.
(300 meters) elevation. For definitions of terms used in this table and
instructions on how to calculate your vehicle 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
*-When towing maximum loads under high outside temperatures and/or
on steep grades, the A/C system may cycle on and off to protect the
engine from overheating. This may result in a temporary increase of
interior temperatures.
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. See your authorized 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±15% of the total weight of the trailer is on the tongue, not to exceed
the maximum tongue loads as stated:
²Class II receiver: 350 lb. (159 kg)
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202

Never connect any trailer lighting to the vehicle's taillamp
circuits, because it may damage the electrical system resulting in
fire. Contact your authorized dealer for assistance in proper trailer tow
wiring installation. Additional electrical equipment may be required.
Driving while you tow
When towing a trailer:
²Keep your speed no faster than 70 mph (112 km/h) during the first
500 miles (800 km) of towing a trailer, and don't make full throttle
starts.
²Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
²Consult your local motor vehicle speed regulations for towing a trailer.
²To eliminate excessive shifting, use a lower gear. This will also assist
in transmission cooling. (For additional information, refer to the
Driving with an automatic transmissionsection in theDriving
chapter.)
²Under extreme conditions with large frontal trailers, high outside
temperatures and highway speeds, the coolant gauge may indicate
higher than normal coolant temperatures. If this occurs, reduce speed
until the coolant temperature returns to the normal range. Refer to
Engine coolant temperature gaugein theInstrument Cluster
chapter.
²Anticipate stops and brake gradually.
²Do not exceed the GCWR rating or transmission damage may occur.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to yourScheduled Maintenance
Informationfor more information.
Trailer towing tips
²Practice turning, stopping and backing up 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.
²If you are driving down a long or steep hill, shift to a lower gear. Do
not apply the brakes continuously, as they may overheat and become
less effective.
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204

²The trailer tongue weight should be 10±15% of the loaded trailer
weight.
²If you will be towing a trailer frequently in hot weather, hilly
conditions, at GCW, or any combination of these factors, consider
refilling your rear axle with synthetic gear lube if not already so
equipped. Refer to theMaintenance and specificationschapter for
the lubricant specification. Remember that regardless of the rear axle
lube used, do not tow a trailer for the first 500 miles (800 km) of a
new vehicle, and that the first 500 miles (800 km) of towing be done
at no faster than 70 mph (112 km/h) with no full throttle starts.
²After you have traveled 50 miles (80 km), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
²To aid in engine/transmission cooling and A/C efficiency during hot
weather while stopped in traffic, place the gearshift lever in P (Park).
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
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.
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.
²do not allow waves to break higher than 6 inches (15 cm) above the
bottom edge of the rear bumper.
Exceeding these limits may allow water to enter vehicle components:
²causing internal damage to the components.
²affecting driveability, emissions and reliability.
Replace the rear axle lubricant any time 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.
RECREATIONAL TOWING (ALL WHEELS ON THE GROUND)
Follow these guidelines for your specific powertrain combination to tow
your vehicle with all four wheels on the ground (such as behind a
recreational vehicle).
These guidelines are designed to ensure that your transmission is not
damaged due to insufficient lubrication.
Tires, Wheels and Loading
205

STARTING
Positions of the ignition
1. OFF/LOCK, shuts off the engine
and all accessories/locks the steering
wheel, gearshift lever and allows key
removal.
2. ACC, allows the electrical
accessories such as the radio to
operate while the engine is not
running. This position also unlocks
the steering wheel.
3. ON, all electrical circuits
operational. Warning lights illuminated. Key position when driving.
4. START, cranks the engine. Release the key as soon as the engine
starts.
Important safety precautions
When the engine starts, the idle RPM runs faster to warm the engine. If
the engine idle speed does not slow down automatically, have the vehicle
checked.
If the vehicle is operated in a heavy snow storm or blowing snow
conditions, the engine air induction may become partially clogged with
snow and/or ice. If this occurs the engine may experience a significant
reduction in power output. At the earliest opportunity, clear all snow
and/or ice away for the air induction inlet.
Before starting the vehicle:
1. Make sure all occupants buckle their safety belts. For more
information on safety belts and their proper usage, refer to theSeating
and Safety Restraintschapter.
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207

Starting the engine
1. Turn the key to 3 (ON) without
turning the key to 4 (START). If
there is difficulty in turning the key,
rotate the steering wheel until the
key turns freely. This condition may
occur when:
²the front wheels are turned
²a front wheel is against the curb
2. Turn the key to 4 (START), then
release the key as soon as the
engine starts. Excessive cranking could damage the starter.
Note:If the engine does not start within five seconds on the first try,
turn the key to OFF, wait 10 seconds and try again. If the engine still
fails to start, press the accelerator to the floor and try again; this will
allow the engine to crank with the fuel shut off in case the engine is
flooded with fuel.
Guarding against exhaust fumes
Carbon monoxide is present in exhaust fumes. Take precautions to avoid
its dangerous effects.
If you smell exhaust fumes inside your vehicle, have your dealer
inspect your vehicle immediately. Do not drive if you smell
exhaust fumes.
Important ventilating information
If the engine is idling while the vehicle is stopped for a long period of
time, open the windows at least one inch (2.5 cm) or adjust the heating
or air conditioning to bring in fresh air.
USING THE ENGINE BLOCK HEATER (IF EQUIPPED)
An engine block heater warms the engine coolant which aids in starting
and heater/defroster performance. Use of an engine block heater is
strongly recommended if you live in a region where temperatures reach
-10ÉF (-23ÉC) or below. For best results, plug the heater in at least three
hours before starting the vehicle. The heater can be plugged in the night
before starting the vehicle.
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209

ADVANCETRACTWITH ROLL STABILITY CONTROLY(RSC)
STABILITY ENHANCEMENT SYSTEM
The AdvanceTractwith RSC system provides stability enhancement
features such as Roll Stability Controly(RSC), Electronic Stability
Control (ESC) and Traction Control (TCS) for certain driving situations.
The system includes an AdvanceTractwith RSC on/off button, and a
ªsliding carº icon in the instrument cluster.
Some drivers may notice a slight movement of the brake pedal when the
AdvanceTractwith RSC performs a system self-check. During
AdvanceTractwith RSC operation you may experience the following:
²A rumble, grunting, or grinding noise after startup and when driving
off
²A slight deceleration of the vehicle
²The AdvanceTractwith RSC indicator light will flash when the system
is activated.
²If your foot is on the brake pedal, you will feel a vibration in the
pedal.
²If the driving condition is severe and your foot is not on the brake, the
brake pedal will move to apply higher brake forces. You may also hear
a whoosh of air from under the instrument panel during this severe
condition.
Traction Control
Traction Control helps your vehicle maintain traction, when driving on
slippery and/or hilly road surfaces, by detecting and controlling wheel
spin. Excessive wheel spin is controlled by momentarily reducing engine
power and/or applying the anti-lock brakes. Traction Control is a driver
aid that helps your vehicle.
If your vehicle should become stuck in deep snow or mud, try switching
the AdvanceTractwith RSC system off by pressing the AdvanceTract
with RSC button momentarily. This will allow your tires to ªdigº for
traction.
If the AdvanceTractwith RSC system is activated excessively in a short
period of time, the brake portion of the system will disable to allow the
brakes to cool down. In this situation, Traction Control will use only
engine power reduction to help control the wheels from over-spinning.
When the brakes have cooled down, the system will again function
normally. Anti-lock braking, RSC and ESC are not affected by this
condition and will function normally during the cool-down period.
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212

If the vehicle is stuck in snow or mud or when driving in deep sand,
switching off the AdvanceTrac with RSC system may be beneficial so the
wheels are allowed to spin. If your vehicle seems to lose engine power
while driving in deep sand or very deep snow, switching off the
AdvanceTrac with RSC stability enhancement feature will restore full
engine power and will enhance momentum through the obstacle.
During Traction Control events the9sliding car9icon in the instrument
cluster will flash momentarily.
Electronic Stability Control (ESC)
The Electronic Stability Control (ESC) with RSC system may enhance
your vehicle's stability during adverse maneuvers.
The AdvanceTractwith RSC system helps the driver maintain steering
control. AdvanceTractwith RSC will attempt to correct the vehicle
motion by applying brake force at individual tires and, if necessary, by
reducing engine power.
During Electronic Stability Control events the9sliding car9icon in the
instrument cluster will flash momentarily.
Driving maneuvers which may activate AdvanceTractwith RSC system
include:
²Taking a turn too fast.
²Maneuvering quickly to avoid an accident, pedestrian or obstacle.
²Driving over a patch of ice.
²Changing lanes on a snow-rutted road.
²Entering a snow-free road from a snow-covered side street, or vice
versa.
²Entering a paved road from a gravel road, or vice versa.
²Driving on slick surfaces.
²Cornering while towing a heavily loaded trailer (refer toTrailer
towingin theTires, Wheels and Loadingchapter.)
Roll Stability Controly(RSC)
The RSC system works in conjunction with the AdvanceTractsystem to
help maintain roll stability of the vehicle during aggressive maneuvers by
applying brake force to one or more wheels.
During Roll Stability Controly(RSC) events the9sliding car9icon in the
instrument cluster will flash momentarily.
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213

Driving conditions that may activate AdvanceTractwith RSC include:
²Emergency lane-change
²Taking a turn too fast
²Quick maneuvering to avoid an accident, pedestrian or obstacle
AdvanceTractwith RSC button and icon functionality
The AdvanceTractwith RSC system automatically turns on each time
the engine is started. AdvanceTractwith RSC system status is indicated
by a warning indicator light with a ªsliding carº icon in the instrument
cluster that will flash when the system is active. In R (Reverse), ABS and
the Traction Control feature will continue to function, however ESC and
RSC are disabled.
The AdvanceTractwith RSC button
allows the driver to control certain
features of the AdvanceTractwith
RSC system below 25 mph (40
km/h). If an attempt is made to
disable the AdvanceTractwith RSC
system above 25 mph (40 km/h), the ªsliding carº icon will illuminate
solid if pressed momentarily, however, the AdvanceTractwith RSC
system will remain enabled until the vehicle speed drops below 25 mph
(40 km/h). Pressing the AdvanceTractwith RSC button momentarily will
disable engine Traction Control, ESC, and RSC and illuminate the ªsliding
carº icon solid. From the default/start-up state, the AdvanceTractwith
RSC system will have no lights illuminated (ªsliding carº lamp off). The
AdvanceTractwith RSC ªsliding carº lamp will illuminate when the
AdvanceTractwith RSC button is pressed momentarily.
When the AdvanceTractwith RSC system has been turned off (pressing
the AdvanceTractwith RSC button momentarily) the ªsliding carº lamp
will illuminate solid.
Pressing and holding the AdvanceTractwith RSC button for more than
five seconds will further disable the brake portion of the Traction Control
feature and the ªsliding carº icon will flash momentarily, then illuminate
solid. The ªsliding carº icon will illuminate solid if pressed momentarily.
All these conditions are normal during AdvanceTractwith RSC
operation. Refer to the following table.
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214

AdvanceTractwith RSC Features
Button
functionsªSliding
carº iconRSC ESCEngine
Traction
ControlBrake
Traction
Control
Default at
start-upIlluminated
during bulb
checkEnabled Enabled Enabled Enabled
Button
pressed
momentarilyIlluminated
solidDisabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)Enabled
Button
pressed and
held more
than five
secondsFlashes
then
illuminated
solidDisabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)Disabled
below
25 mph
(40 km/h)
Do not alter or modify your vehicle's suspension or steering; the
resulting changes to the vehicle's handling can adversely affect
the AdvanceTractwith RSC system.
Aggressive driving in any road conditions can cause you to lose
control of your vehicle increasing the risk of severe personal
injury or property damage. The occurrence of a AdvanceTractwith
RSC event is an indication that at least some of the tires have
exceeded their ability to grip the road; this may lead to an increased
risk of loss of vehicle control, vehicle rollover, personal injury and
death. If you experience a severe road event, SLOW DOWN.
If a failure is detected in the AdvanceTractwith RSC system, and the
AdvanceTractwith RSC button has not been pushed, the warning
indicator light in the instrument cluster will stay on. If the warning
indicator light in the instrument cluster remains on while the engine is
running, have the system serviced by an authorized dealer immediately.
STEERING
To prevent damage to the power steering system:
²Never hold the steering wheel at its furthest turning points (until it
stops) for more than a few seconds when the engine is running
²Do not operate the vehicle with a low power steering pump fluid level
(below the MIN mark on the reservoir).
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215

²Some noise is normal during operation. If the noise is excessive, check
for low power steering pump fluid level before seeking service by your
authorized dealer.
²Heavy or uneven steering efforts may be caused by low power steering
pump fluid level. Check for low power steering pump fluid level before
seeking service by your authorized dealer.
²Do not fill the power steering pump reservoir above the MAX mark on
the reservoir, as this may result in leaks from the reservoir.
If the power steering system breaks down (or if the engine is turned
off), you can steer the vehicle manually, but it takes more effort. If the
steering wanders or pulls, check for:
²an improperly inflated tire
²uneven tire wear
²loose or worn suspension components
²loose or worn steering components
²improper steering alignment
A high crown in the road or high crosswinds may also make the steering
seem to wander/pull.
PREPARING TO DRIVE
Utility vehicles have a significantly higher rollover rate than
other types of vehicles.
In a rollover crash, an unbelted person is significantly more likely
to die than a person wearing a safety belt.
Your vehicle has larger tires and increased ground clearance, giving the
vehicle a higher center of gravity than a passenger car.
Vehicles with a higher center of gravity such as utility and
four-wheel drive vehicles handle differently than vehicles with a
lower center of gravity. Utility and four-wheel drive vehicles arenot
designed 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, excessive speed and abrupt
maneuvers in these vehicles. Failure to drive cautiously could result in
an increased risk of loss of vehicle control, vehicle rollover, personal
injury and death.
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