2012 FORD F550 check engine

If the engine fails to start using the preceding instructions (flexible
fuel vehicles only)
1. Press and hold down the accelerator 1/3 to 1/2 way to floor, then
crank the engine.
2. When the engine starts, release the key, then gradually release the
accelerator pedal as the engine speeds up. If the engine still fails to start,
repeat Step 1.
Guarding against Exhaust Fumes
WARNING: If you smell exhaust fumes inside your vehicle, have
this checked immediately. Do not drive your vehicle if you smell
exhaust fumes. Carbon monoxide is present in exhaust fumes. Take
precautions to avoid its dangerous effects.
Important Ventilating Information
If you stop your vehicle and leave the engine idling for long periods of
time, we recommend that you do one of the following:
• Open the windows at least one inch (2.5 centimeters).
• Set your climate control to outside air.
ENGINE BLOCK HEATER (IF EQUIPPED)
An engine block heater warms the engine coolant which aids in starting
and allows the heater/defroster system to respond quickly. If your vehicle
is equipped with this system, your equipment includes a heater element
which is installed in your engine block and a wire harness which allows
the user to connect the system to a grounded 120 volt A/C electrical
source. The engine block heater plug can be located through the center
opening of the lower front bumper assembly. The block heater system is
most effective when outdoor temperatures reach below 0°F (-18°C).
For flexible fuel vehicles, if operating with E85 ethanol, an engine block
heater must be used if ambient temperature is below 0°F (-18°C).
See Cold weather starting earlier in this chapter for more information
on starting with ethanol.
WARNING: Failure to follow engine block heater instructions
could result in property damage or physical injury. Driving
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WARNING: To reduce the risk of electrical shock, do not use
your heater with ungrounded electrical systems or two-pronged
(cheater) adapters.
Prior to using the engine block heater, follow these recommendations for
proper and safe operation:
• For your safety, use an outdoor extension cord that is product
certified by Underwriter’s Laboratory (UL) or Canadian Standards
Association (CSA). Use only an extension cord that can be used
outdoors, in cold temperatures, and is clearly marked “Suitable for Use
with Outdoor Appliances.” Never use an indoor extension cord
outdoors; it could result in an electric shock or fire hazard.
• Use a 16 gauge outdoor extension cord, minimum.
• Use as short an extension cord as possible.
• Do not use multiple extension cords. Instead, use one extension cord
which is long enough to reach from the engine block heater cord to
the outlet without stretching.
• Make certain that the extension cord is in excellent condition (not
patched or spliced). Store your extension cord indoors at
temperatures above 32°F (0°C). Outdoor conditions can deteriorate
extension cords over a period of time.
• To reduce the risk of electrical shock, do not use your heater with
ungrounded electrical systems or two pronged (cheater) adapters.
Also ensure that the block heater, especially the cord, is in good
condition before use.
• Make sure that when in operation, the extension cord plug /engine
block heater cord plug connection is free and clear of water in order
to prevent possible shock or fire.
• Be sure that areas where the vehicle is parked are clean and clear of
all combustibles such as petroleum products, dust, rags, paper and
similar items.
• Be sure that the engine block heater, heater cord and extension cord
are solidly connected. A poor connection can cause the cord to
become very hot and may result in an electrical shock or fire. Be sure
to check for heat anywhere in the electrical hookup once the system
has been operating for approximately a half hour.
• Finally, have the engine block heater system checked during your fall
tune-up to be sure it’s in good working order.Driving
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WARNING: Remember that even advanced technology cannot
defy the laws of physics. It’s always possible to lose control of a
vehicle due to inappropriate driver input for the conditions. Aggressive
driving on any road condition can cause you to lose control of your
vehicle increasing the risk of personal injury or property damage.
Activation of the AdvanceTrac  with RSC  system is an indication that
at least some of the tires have exceeded their ability to grip the road;
this could reduce the operator’s ability to control the vehicle,
potentially resulting in a loss of vehicle control, vehicle rollover,
personal injury and death. If your AdvanceTrac  with RSC  system
activates, SLOW DOWN.
WARNING: If a failure has been detected within the
AdvanceTrac  with RSC  system, the stability control light will
illuminate steadily. Verify that the AdvanceTrac  with RSC  system is
not manually disabled. Press the stability control button located on the
instrument panel to the right of the climate control system. If the
stability control light still illuminates steadily, have the system serviced
by an authorized dealer immediately. Operating your vehicle with
AdvanceTrac  with RSC  disabled could lead to an increased risk of
loss of vehicle control, vehicle rollover, personal injury and death.
The AdvanceTrac  with RSC  system automatically enables each time the
engine is started. All features of the AdvanceTrac  with RSC  system
(TCS, ESC, and RSC  ) are active and monitor the vehicle from start-up.
However, the system will only intervene if the driving situation requires it.
The AdvanceTrac  with RSC 
system includes a stability control
button located on the instrument
panel to the right of the climate
control system, a stability control
light and a stability control off light
in the instrument cluster. Both
lights will illuminate temporarily during start-up as part of a normal
system self-check. The stability control light may illuminate (flash)
during certain driving situations which cause the AdvanceTrac  with
RSC  system to operate. If the stability control light and stability control
off light illuminate steadily, have the system serviced by an authorized
dealer immediately. The message center will also indicate a failure with
the AdvanceTrac  with RSC  system.Driving
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Note: If the system cannot be turned off, refer to MyKey  in the Locks
and Security chapter for more information.
When AdvanceTrac  with RSC  performs a normal system self-check,
some drivers may notice a slight movement of the brake, and/or a
rumble, grunting, or grinding noise after startup and when driving off.
When an event occurs that activates AdvanceTrac  with RSC  you may
experience the following:
• A slight deceleration of the vehicle
• The stability control light will flash.
• A vibration in the pedal when your foot is on the brake pedal
• If the driving condition is severe and your foot is not on the brake, the
brake pedal may move as the systems applies higher brake forces. You
may also hear a whoosh of air from under the instrument panel during
this severe condition.
• The brake pedal may feel stiffer than usual.
Traction control system (TCS)
Traction control is a driver aid feature that helps your vehicle maintain
traction of the wheels, typically when driving on slippery and/or hilly
road surfaces, by detecting and controlling wheel spin.
Excessive wheel spin is controlled in two ways, which may work
separately or in tandem: engine traction control and brake traction
control. Engine traction control works to limit drive-wheel spin by
momentarily reducing engine power. Brake traction control works to limit
wheel spin by momentarily applying the brakes to the wheel that is
slipping. Traction control is most active at low speeds.
During TCS events the stability control light in the instrument cluster
will flash.
If the TCS is activated excessively in a short period of time, the braking
portion of the system may become temporarily disabled to allow the
brakes to cool down. In this situation, TCS will use only engine power
reduction to help control the wheels from over-spinning. When the
brakes have cooled down, the system will regain all features. Anti-lock
braking, RSC  , and ESC are not affected by this condition and will
continue to function during the cool-down period.
The engine traction control and brake traction control system may be
deactivated in certain situations. See the Switching off AdvanceTrac 
with RSC  section following. Driving
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Switching off AdvanceTrac  with RSC 
If the vehicle is stuck in snow, mud or sand, and seems to lose engine
power, switching off certain features of the AdvanceTrac  with RSC 
system may be beneficial because the wheels are allowed to spin. This
will restore full engine power and will enhance momentum through the
obstacle. To switch off the AdvanceTrac  with RSC  system, press the
stability control button located on the instrument panel to the right of
the climate control system. Full features of the AdvanceTrac  with RSC 
system can be restored by pressing the button again or by turning off
and restarting the engine.
If you switch off the AdvanceTrac  with RSC  system, the stability
control off light will illuminate steadily. Pressing the stability control
button again will turn off the stability control off light and reactivate the
system.
In R (Reverse), ABS and the engine traction control and brake traction
control features will continue to function; however, ESC and RSC  are
disabled.
AdvanceTrac  with RSC  Features (SRW only)
Button functions Stability
control
light RSC  ESC TCS
Default at start-up Illuminated
during bulb
check Enabled Enabled Enabled
Button pressed
momentarily Illuminated
solid Enabled Enabled 1
Disabled
Button pressed and
held for more than
5 seconds at vehicle
speed under 35 mph
(56 km/h) Flashes then
illuminated
solid 2
Disabled Disabled Disabled
Vehicle speed
exceeds 35 mph
(56 km/h) after
button is pressed
and held for more
than 5 seconds Illuminated
solid Enabled Enabled 1
DisabledDriving
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AdvanceTrac  with RSC  Features (SRW only)
Button functions Stability
control
light RSC  ESC TCS
Button pressed again
after deactivation Not
illuminated Enabled Enabled Enabled
Transfer case
switched to 4WD
Low 3
Illuminated Disabled Disabled Disabled1
ESC has reduced sensitivity compared to fully active system. 2
Lamp light starts blinking for 4 seconds after entering press and hold
state. 3
Engaging 4WD Low locked automatically disables RSC, ESC and TSC.
Trailer sway control
Your vehicle may be equipped with trailer sway control. When properly
equipped, trailer sway control will use the vehicle’s AdvanceTrac  with
RSC  system to detect and help reduce trailer sway by applying brake
force at individual wheels and, if necessary, by reducing engine power.
WARNING: Trailer sway control does not prevent a trailer from
swaying, it mitigates the sway from increasing once it has
occurred. If you are experiencing trailer sway it is likely that the trailer
is improperly loaded for the correct tongue weight or the speed of the
vehicle and trailer is too high. Pull the vehicle-trailer over to a safe
location to check the trailer weight distribution and tongue load and
reduce speed to a safe level while towing. If trailer sway is
experienced, SLOW DOWN.
During trailer sway control events the stability control light in the
instrument cluster will flash momentarily. The message center will also
display TRAILER SWAY REDUCE SPEED. In some cases when trailer
sway is detected, the vehicle speed is too high and may be above a
speed at which trailer sway will not grow continuously. This may cause
the system to activate multiple times, causing a gradual reduction in
speed.Driving
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• Some noise is normal during operation. If excessive, check for low
power steering pump fluid level before seeking service by your dealer.
• Heavy or uneven efforts may be caused by low power steering fluid.
Check for low power steering pump fluid level before seeking service
by your dealer.
• Do 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:
• an improperly inflated tire
• uneven tire wear
• loose or worn suspension components
• loose or worn steering components
• improper steering alignment
If any steering components are serviced or replaced, install new
fasteners (many are coated with thread adhesive or have prevailing
torque features which may not be re-used). Never re-use a bolt or nut.
Torque fasteners to specifications in Workshop Manual .
A high crown in the road or high crosswinds may also make the steering
seem to wander/pull.
ELECTRONIC LOCKING DIFFERENTIAL (ELD) (IF EQUIPPED)
The electronic locking differential (ELD) is a device housed in the rear
axle which allows both rear wheels to turn at the same speed. It provides
added traction on slippery and/or off road surfaces, particularly when
one wheel is on a poor traction surface. The ELD may be locked or
unlocked by the vehicle operator and can be engaged or disengaged on
the fly. When the axle is unlocked it will function like a standard rear
axle. When the axle is locked it will not allow the rear wheels to rotate
at different speeds when turning. It is not recommended for use on good
traction surfaces such as dry pavement. Doing so may result in abnormal
driving behavior and noise while cornering and excessive tire wear.
The ELD is affected by the following conditions of your vehicle:
• On 2WD vehicles and 4WD vehicles in 2H (4X2) or 4H (4X4 High),
the ELD will not engage if the vehicle speed is above 25 mph
(40 km/h). Driving
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FUEL PUMP SHUT-OFF
In the event of a moderate to severe collision, this vehicle is equipped
with a fuel pump shut-off feature that stops the flow of fuel to the
engine. Not every impact will cause a shut-off.
Should your vehicle shut off after a collision due to this feature, you may
restart your vehicle by doing the following:
1. Turn the ignition switch to the off position and wait 10 seconds.
2. Turn the ignition switch to the on position.
3. Repeat steps 1 and 2 to re-enable fuel pump.
Note: For vehicles equipped with a diesel engine, see the Diesel
supplement for additional Fuel Pump Shut-off reset instructions.
WARNING: Failure to inspect and if necessary repair fuel leaks
after a collision may increase the risk of fire and serious injury.
Ford Motor Company recommends that the fuel system be inspected
by an authorized dealer after any collision.
FUSES AND RELAYS
Fuses
If electrical components in the
vehicle are not working, a fuse may
have blown. Blown fuses are
identified by a broken wire within
the fuse. Check the appropriate
fuses before replacing any electrical
components.
Note: Always replace a fuse with one that has the specified amperage
rating. Using a fuse with a higher amperage rating can cause severe wire
damage and could start a fire. 15
Roadside Emergencies
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