2012 FORD F250 check engine

Roadside Emergencies 319
Getting roadside assistance 319
Hazard flasher control 320
Fuel pump shut-off 321
Fuses and relays 321
Changing tires 331
Wheel lug nut torque 347
Jump starting 348
Wrecker towing 351
Customer Assistance 353
Reporting safety defects (U.S. only) 359
Reporting safety defects (Canada only) 360
Cleaning 361
Maintenance and Specifications 370
Engine compartment 371
Engine oil 375
Battery 377
Engine coolant 379
Engine coolant check 379
Fuel information 386
Air filter(s) 405
Part numbers 410
Maintenance product specifications and capacities 411
Engine data 415
Accessories 419
Ford Extended Service Plan 421
Table of Contents
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2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

Vehicle Symbol Glossary
Power Windows
Front/Rear
Power Window Lockout
Child Safety Door
Lock/UnlockInterior Luggage
Compartment Release
Panic AlarmEngine Oil
Engine CoolantEngine Coolant
Temperature
Do Not Open When HotBattery
Avoid Smoking, Flames,
or SparksBattery Acid
Explosive GasFan Warning
Power Steering FluidMaintain Correct Fluid
LevelMAX
MIN
Service Engine SoonEngine Air Filter
Passenger Compartment
Air FilterJack
Check Fuel CapLow Tire Pressure
Warning
Introduction
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2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

bulb works. If any light remains on after starting the vehicle, refer to the
respective system warning light for additional information.
Standard message center
Note:Some warning lights are
reconfigurable telltale (RTT)
indicator lights and will illuminate in
the message center. These lights
function the same as the other
warning lights.
Optional message center
Note:Some warning lights are
reconfigurable telltale (RTT)
indicator lights and will illuminate in
the message center. These lights
function the same as the other
warning lights. The first three
positions will only display one
warning telltale at a time; the last
three positions can cycle between
different warning telltales.
Service engine soon:The service
engine soon indicator
illuminates when the ignition is first
turned to the on position to check
the bulb and to indicate whether the vehicle is ready for
Inspection/Maintenance (I/M) testing. Normally, the service engine soon
indicator will stay on until the engine is cranked, then turn itself off if no
malfunctions are present. However, if after 15 seconds the service engine
soon indicator blinks eight times, it means that the vehicle is not ready
for I/M testing. See theReadiness for Inspection/Maintenance (I/M)
testingin theMaintenance and Specificationschapter.
Solid illumination after the engine is started indicates the on-board
diagnostics system (OBD-II) has detected a malfunction. Refer to
On-board diagnostics (OBD-II)in theMaintenance and Specifications
chapter. If the light is blinking, engine misfire is occurring which could
damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately by your authorized dealer.
Instrument Cluster
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2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

WARNING:Under engine misfire conditions, excessive exhaust
temperatures could damage the catalytic converter, the fuel
system, interior floor coverings or other vehicle components, possibly
causing a fire.
Check fuel cap:Displays when the
fuel cap may not be properly
installed. Continued driving with
this light on may cause the Service
engine soon warning indicator to
come on. Refer toFuel filler capin
theMaintenance and Specificationschapter.
Low fuel (RTT):Displays when
the fuel level in the fuel tank is at
or near empty (refer toFuel gauge
in this chapter).
Powertrain malfunction/Reduced
power/Electronic throttle
control (RTT):Displays when the
engine has defaulted to a
“limp-home” operation or when a transmission problem has been
detected and shifting may be restricted. If the light remains on, have the
system serviced immediately by your authorized dealer.
Brake system warning light:To
confirm the brake system warning
light is functional, it will
momentarily illuminate when the
ignition is turned to the on position
when the engine is not running, or in a position between on and start, or
by applying the parking brake when the ignition is turned to the on
position.
If the brake system warning light does not illuminate at this time, seek
service immediately from your authorized dealer. Illumination after
releasing the parking brake indicates low brake fluid level or a brake
system malfunction. The brake system should be inspected immediately
by your authorized dealer.
P!
BRAKE
Instrument Cluster
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2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

WARNING:Driving a vehicle with the brake system warning
light on is dangerous. A significant decrease in braking
performance may occur. It will take you longer to stop the vehicle.
Have the vehicle checked by your authorized dealer. Driving extended
distances with the parking brake engaged can cause brake failure and
the risk of personal injury.
Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately by your
authorized dealer. Normal braking is still functional unless the brake
warning light also is illuminated.
Airbag readiness:If this light fails
to illuminate when the ignition is
turned to on, continues to flash or
remains on, have the system
serviced immediately by your
authorized dealer. A chime will sound if there is a malfunction in the
indicator light.
Safety belt:Reminds you to fasten
your safety belt. A Belt-Minder
chime will also sound to remind you
to fasten your safety belt. Refer to
theSeating and Safety Restraints
chapter to activate/deactivate the Belt-Minderchime feature.
Charging system:Illuminates when
the battery is not charging properly.
If it stays on while the engine is
running, there may be a malfunction
with the charging system. Contact your authorized dealer as soon as
possible. This indicates a problem with the electrical system or a related
component.
Engine oil pressure (RTT and
static warning light):Displays
when the oil pressure falls below the
normal range. Refer toEngine oil
in theMaintenance and Specificationschapter.
ABS
Instrument Cluster
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2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

Door ajar (RTT):Displays when
the ignition is in the on position and
any door is not completely closed.
Engine coolant temperature
(RTT):Illuminates when the engine
coolant temperature is high. Stop
the vehicle as soon as possible, switch off the engine and let cool. Refer
toEngine coolantin theMaintenance and Specificationschapter.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
Low tire pressure warning (if
equipped):Illuminates when your
tire pressure is low. If the light
remains on at start up or while
driving, the tire pressure should be
checked. Refer toInflating your tiresin theTires, Wheels and
Loadingchapter. When the ignition is first turned to on, the light will
illuminate for three seconds to ensure the bulb is working. If the light
does not turn on, have the system inspected by your authorized dealer.
For more information on this system, refer toTire pressure monitoring
system (TPMS)in theTires, Wheels and Loadingchapter.
Hill descent (if equipped):
Displays when using the hill descent
mode. Refer to theDrivingchapter
for transmission function and
operation.
Transmission Tow/Haul Feature
(if equipped):Displays when the
Tow/Haul feature has been
activated. Refer to theDriving
chapter for transmission function and operation. If the light flashes
steadily, have the system serviced immediately, damage to the
transmission could occur.
Instrument Cluster
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2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

Speed control (if equipped):The
speed control system indicator light
changes color to indicate what mode
the system is in:
•On (amber light):Illuminates
when the speed control system is turned on. Turns off when the speed
control system is engaged or turned off.
•Engaged (green light):Illuminates when the speed control system is
engaged. Turns off when the speed control system is disengaged.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
High beams:Illuminates when the
high-beam headlamps are turned on.
Diesel warning lights:If your vehicle is equipped with a diesel engine,
it has some unique warning lights; refer toInstrument Clusterin your
diesel supplement for detailed information on their function.
•Glow plug pre-heat
•Waterinfuel
•Diesel exhaust fluid
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the off or accessory position and the driver’s door is opened.
Headlamps on warning chime:Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is not in the ignition) and the
driver’s door is opened.
Instrument Cluster
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2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

GAUGES
Base cluster with automatic transmission shown. Metric similar.
1.Engine oil pressure gauge:Indicates engine oil pressure. The
needle should stay in the normal operating range (between L and H). If
the needle falls below the normal range, stop the vehicle, turn off the
engine and check the engine oil level. Add oil if needed. If the oil level is
correct, have your vehicle checked at your authorized dealer.
2.Engine coolant temperature gauge:Indicates engine coolant
temperature. At normal operating temperature, the needle will be in the
normal range (between H and C).If it enters the red section, the
engine is overheating. Stop the vehicle as soon as safely possible,
switch off the engine and let the engine cool.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
3.Transmission fluid temperature gauge:If the gauge is in the:
Normal areaThe transmission fluid is within the normal operating
temperature (between H and C).
1234
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Instrument Cluster
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2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)