wheel FORD E-150 2008 Repair Manual

If a system fault is detected, the traction control active light will
illuminate, the Traction Control™ button will not turn the system on or
off and your vehicle should be serviced by an authorized dealer.
ADVANCETRACWITH ROLL STABILITY CONTROL™ (RSC)
STABILITY ENHANCEMENT SYSTEM (IF EQUIPPED)
The AdvanceTrac
with RSC system provides stability and traction
enhancement for certain driving situations when driver assistance is
needed. It 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 rapidly applying the anti-lock brakes. The system is a driver
aid which makes your vehicle easier to handle primarily on snow and
ice-covered roads.
If your vehicle should become stuck in deep snow or mud, try switching
the AdvanceTrac
with RSC system off by pressing the AdvanceTrac

with RSC button. This will allow your tires to “dig” for traction.
Remember to switch the AdvanceTrac
with RSC system back on once
the vehicle is no longer stuck.
If the AdvanceTrac
with RSC system is activated excessively in a short
period of time, the brake portion of the system will shut down to allow
the brakes to cool down. A limited AdvanceTrac
with RSC function
using only engine power reduction will still help control the wheels from
over-spinning. When the brakes have cooled down, the system will again
function normally. Anti-lock braking is not affected by this condition and
will function normally during the cool-down period.
The AdvanceTrac
with RSC system enhances your vehicle’s stability
during maneuvers that require all available tire traction, like in
wet/snowy/icy road conditions and/or when performing emergency
maneuvers. In an emergency lane-change, the driver will experience
better overall vehicle traction, and have better control of the vehicle.
The AdvanceTrac
with RSC system helps the driver maintain steering
control if the vehicle begins to slide excessively left or right or spin out.
AdvanceTrac
with RSC will attempt to correct the sliding motion by
applying brake force at individual tires and, if necessary, by reducing
engine power.
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WARNING:Aggressive driving in any road conditions can cause
you to lose control of your vehicle increasing the risk of severe
personal injury or death. The occurrence of a AdvanceTrac
with 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. Operating
your vehicle with AdvanceTrac
with RSC system disabled may
severely reduce your ability to control your vehicle. If you experience a
severe road event or any loss of vehicle control, SLOW DOWN.
Driving conditions which may activate AdvanceTrac
with RSC system
include:
•Taking a turn too fast.
•Maneuvering quickly to avoid an accident, pedestrian or obstacle.
•Hitting a patch of ice.
•Changing lanes on a snow-rutted road.
•Entering a snow-free road from a snow-covered side street, or vice
versa.
•Entering a paved road from a gravel road, or vice versa.
•Hitting a curb while turning.
•Driving on slick surfaces.
•Cornering while towing a heavily loaded trailer (refer toTrailer
towingin theTires, Wheels and Loadingchapter.)
The RSC system works in conjunction with the AdvanceTrac
system to
further enhance the vehicle’s overall stability during aggressive
maneuvers. The system helps maintain roll stability of the vehicle during
aggressive maneuvers by applying brake force to one or more wheels.
Driving conditions that may activate Roll Stability Control include:
•Emergency lane-change
•Taking a turn too fast
•Quick maneuvering to avoid an accident, pedestrian or obstacle
The AdvanceTrac
with RSC system automatically turns on when the
engine is started. However, the system does not function when the
vehicle is traveling in R (Reverse). In R (Reverse), ABS and the traction
enhancement feature will continue to function.
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The AdvanceTrac
with RSC button
allows the driver to control the
availability of the AdvanceTrac

with RSC system. AdvanceTrac

with RSC system status is indicated
by a warning indicator light with a
“sliding car” icon in the instrument
cluster that will flash when the
system is active and an indicator light in the control button that will
illuminate when the system is turned off.
The AdvanceTrac
with RSC system
warning indicator light may flash to
indicate the system is not fully
initialized. If this happens, slow
down. If the light continues flashing,
have the AdvanceTrac
with RSC
system serviced by an authorized dealer.
If a failure is detected in the AdvanceTrac
with RSC system, the
warning indicator light in the instrument cluster will stay on and the
instrument cluster will chime repeatedly. If the warning indicator light in
the instrument cluster remains on and the chime is active while the
engine is running, have the system serviced by an authorized dealer
immediately.
Pressing the control will disable the AdvanceTrac
with RSC system and
the traction enhancement feature at and below 20 mph (32 km/h). 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 and the vehicle speed is 20 mph
(32 km/h) or below, switching off the AdvanceTrac
with RSC stability
enhancement feature will restore full engine power and will enhance
momentum through the obstacle. Remember to switch the AdvanceTrac

with RSC system back on once the vehicle is no longer stuck.
Note:The AdvanceTrac
with RSC system will automatically restore to
full functionality every time the vehicle speed exceeds 20 mph (32 km/h)
or the ignition is turned off and back on. However, the AdvanceTrac

with RSC button remains illuminated even above 20 mph (32 km/h) until
it is pressed.
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Some drivers may notice a slight movement of the brake pedal when the
AdvanceTrac
with RSC performs a system self-check. During
AdvanceTrac
with RSC operation you may experience the following:
•A rumble or grinding noise
•A slight deceleration of the vehicle
•Steering feedback
•The AdvanceTrac
with RSC indicator light will flash
•If your foot is on the brake pedal, you will feel a vibration in the
pedal.
All these conditions are normal during AdvanceTrac
with RSC
operation.
Do not alter or modify your vehicle’s suspension, steering or
tires; the resulting changes to the vehicle’s handling can
adversely affect the AdvanceTrac
with RSC system. Also, do not
install a stereo loudspeaker. The speaker vibrations can adversely
affect the AdvanceTrac
with RSC sensors.
STEERING
To help prevent damage to the power steering system:
•Never hold the steering wheel at its furthest turning points (until it
stops) for more than a few seconds when the engine is running.
•Do not operate the vehicle with a low power steering pump fluid level
(If the fluid level is below the FULL COLD range on the dipstick).
•Some 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.
•Heavy 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.
•Do not fill the power steering pump reservoir above the FULL COLD
range on the dipstick, 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:
•an improperly inflated tire
•uneven tire wear
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•loose or worn suspension components
•loose or worn steering components
•improper steering alignment
A high crown in the road or high crosswinds may also make the steering
seem to wander/pull.
TRACTION-LOK AXLE (IF EQUIPPED)
This axle provides added traction on slippery surfaces, particularly when
one wheel is on a poor traction surface. Under normal conditions, the
Traction-Lok axle functions like a standard rear axle. The axle may
exhibit a slight noise or vibration in tight turns with low vehicle speed.
This is normal behavior and indicates the axle is working.
PREPARING TO DRIVE
WARNING:Utility vehicles have a significantly higher rollover
rate than other types of vehicles.
WARNING:In a rollover crash, an unbelted person is
significantly more likely to die than a person wearing a seat belt.
Utility vehicles and trucks have larger tires and increased ground
clearance, giving the vehicle a higher center of gravity than a passenger
car.
WARNING:Vehicles with a higher center of gravity such as
utility vehicles and trucks handle differently than vehicles with a
lower center of gravity. Utility vehicles and trucks 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, excessive speed or 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.
WARNING:Loaded vehicles, with a higher center of gravity,
may handle differently than unloaded vehicles. Do not overload
your vehicle and use extra precautions, such as driving at slower
speeds, avoiding abrupt steering changes and allowing for increased
stopping distance, when driving a heavily loaded vehicle. Over-loading
or loading the vehicle improperly can deteriorate handling capability
and contribute to loss of vehicle control and vehicle rollover.
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Vehicle stability and handling
The risk of a rollover crash increases as the number of people and load
in the vehicle increase. This increased risk occurs because the passenger
weight and load raises the vehicle’s center of gravity and causes it to
shift rearward. As a result, the van has less resistance to rollover and
handles differently from other commonly driven passenger vehicles,
making it more difficult to control in an emergency situation. Placing any
load on the roof also raises the center of gravity and increases the
potential for rollover.
The van should be operated by an experienced driver. An organization
that owns a 15–passenger van should select one or two experienced
drivers to drive the van on a regular basis. These drivers will gain
valuable experience handling the van. This experience will help make
each trip safer.
The van should be operated at a safe speed which, in some conditions,
may be less than the posted speed limit.
Further, all occupants should be properly restrained. Most people killed
in rollover crashes were unbelted. Occupants can dramatically reduce
their risk of being killed or seriously injured in a rollover crash by simply
using their seat belts. Organizations that own 15–passenger vans should
have a written seat belt use policy. Drivers should be responsible for
enforcing the policy.
Emergency maneuvers
•In an unavoidable emergency situation where a sudden sharp turn
must be made, remember to avoid “over-driving” your vehicle, i.e.,
turn the steering wheel only as rapidly and as far as required to avoid
the emergency. Excessive steering will result in less vehicle control,
not more. Additionally, smooth variations of the accelerator and/or
brake pedal pressure should be utilized if changes in vehicle speed are
called for. Avoid abrupt steering, acceleration or braking which could
result in an increased risk of loss of vehicle control, vehicle rollover
and/or personal injury. Use all available road surface to return the
vehicle to a safe direction of travel.
•In the event of an emergency stop, avoid skidding the tires and do not
attempt any sharp steering wheel movements.
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WARNING: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 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, 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.
•If the vehicle goes from one type of surface to another (i.e., from
concrete to gravel) there will be a change in the way the vehicle
responds to a maneuver (steering, acceleration or braking). Again,
avoid these abrupt inputs.
AUTOMATIC TRANSMISSION OPERATION
Brake-shift interlock
The vehicle is equipped with a brake-shift interlock feature that prevents
the gearshift lever from being moved from P (Park) unless the brake
pedal is depressed.
If you cannot move the gearshift lever out of P (Park) position with the
ignition in the (4) ON position and the brake pedal depressed, a
malfunction may have occurred. It is possible that a fuse has blown or
the vehicle’s brakelamps are not operating properly. Refer toFuses and
relaysin theRoadside Emergencieschapter. If the fuses and
brakelamps are working properly, and the vehicle still will not shift out of
(P) Park, see your authorized dealer for service.
In an emergency, to disable the malfunctioning brake-shift interlock
feature in order to shift the vehicle from P(Park) follow these steps:
WARNING:To prevent vehicle movement when following this
procedure, park on a level surface, ensure parking brake is set,
and block the rear wheels.
1. Apply the parking brake. Turn key to the 2 (lock), and then remove
the key.
2. Disconnect the negative (Black) battery cable from the battery.
3. Insert the key and turn to 3 (off). Shift to N (Neutral).
4. Reconnect the negative (Black) battery cable to the battery.
5. Start the vehicle.
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Understanding the gearshift positions of the 4–speed automatic
transmission
This vehicle is equipped with an adaptive Transmission Shift Strategy.
Adaptive Shift Strategy offers the optimal transmission operation and
shift quality. When the vehicle’s battery has been disconnected for any
type of service or repair, the transmission will need to relearn the normal
shift strategy parameters, much like having to reset your radio stations
when your vehicle battery has been disconnected. The Adaptive
Transmission Strategy allows the transmission to relearn these operating
parameters. This learning process could take several transmission
upshifts and downshifts; during this learning process, slightly firmer
shifts may occur. After this learning process, normal shift feel and shift
scheduling will resume.
P (Park)
This position locks the transmission and prevents the rear wheels from
turning.
To put your vehicle in gear:
•Start the engine
•Depress the brake pedal
•Move the gearshift lever into the desired gear
To put your vehicle in P (Park):
•Come to a complete stop
•Move the gearshift lever and securely latch it in P (Park)
WARNING:Always set the parking brake fully and make sure
the gearshift is latched in P (Park). Turn the ignition to the
LOCK position and remove the key whenever you leave your vehicle.
R (Reverse)
With the gearshift lever in R (Reverse), the vehicle will move backward.
Always come to a complete stop before shifting into and out of R
(Reverse).
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1 (First)
•Provides maximum engine braking.
•Allows upshifts by moving gearshift lever.
•Will not downshift into 1 (First) at high speeds; allows for 1 (First)
when vehicle reaches slower speeds.
Forced downshifts
•Allowed in
(Overdrive) or Drive.
•Depress the accelerator to the floor.
•Allows transmission to select an appropriate gear.
Understanding the shift positions of the 5–speed automatic
transmission (if equipped - 5.4L and 6.8L gasoline engines only)
This vehicle is equipped with an adaptive Transmission Shift Strategy.
Adaptive Shift Strategy offers the optimal transmission operation and
shift quality. When the vehicle’s battery has been disconnected for any
type of service or repair, the transmission will need to relearn the normal
shift strategy parameters, much like having to reset your radio stations
when your vehicle battery has been disconnected. The Adaptive
Transmission Strategy allows the transmission to relearn these operating
parameters. This learning process could take several transmission
upshifts and downshifts; during this learning process, slightly firmer
shifts may occur. After this learning process, normal shift feel and shift
scheduling will resume.
P (Park)
This position locks the transmission and prevents the rear wheels from
turning.
To put your vehicle in gear:
•Start the engine
•Depress the brake pedal
•Move the gearshift lever into the desired gear
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Tow/Haul delays upshifts to reduce frequency of transmission shifting.
Tow/Haul also provides engine braking in all forward gears when the
transmission is in the D (Overdrive) position; this engine braking will
slow the vehicle and assist the driver in controlling the vehicle when
descending a grade. Depending on driving conditions and load
conditions, the transmission may downshift, slow the vehicle and control
the vehicle speed when descending a hill, without the accelerator pedal
being pressed. The amount of downshift braking provided will vary based
upon the amount the brake pedal is depressed.
To deactivate the Tow/Haul feature and return to normal driving mode,
press the button on the end of the gearshift lever. The TOW HAUL light
will no longer be illuminated.
When you shut-off and restart the engine, the transmission will
automatically return to normal D (Overdrive) mode (Tow/Haul OFF).
WARNING:Do not use the Tow/Haul feature when driving in icy
or slippery conditions as the increased engine braking can cause
the rear wheels to slide and the vehicle to swing around with the
possible loss of vehicle control.
3 (Third)
Transmission starts and operates in third gear only.
Used for improved traction on slippery roads. Selecting 3 (Third)
provides engine braking.
2 (Second)
Use 2 (Second) to start-up on slippery roads or to provide additional
engine braking on downgrades.
1 (First)
•Provides maximum engine braking.
•Allows upshifts by moving gearshift lever.
•The transmission will not downshift into 1 (First) at high speeds; it
will downshift to a lower gear and then shift into 1 (First) when the
vehicle reaches slower speeds.
Forced downshifts
•Allowed in
(Overdrive) or Drive.
•Depress the accelerator to the floor.
•Allows transmission to select an appropriate gear.
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