2008 FORD F150 fuel cap

Customer Assistance 321
Reporting safety defects (U.S. only) 327
Reporting safety defects (Canada only) 328
Cleaning 329
Maintenance and Specifications 339
Engine compartment 341
Engine oil 345
Battery 349
Engine coolant 351
Fuel information 357
Air filter(s) 377
Part numbers 380
Maintenance product specifications and capacities 381
Engine data 385
Accessories 389
Index 391
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Table of Contents
3
2008 F-150(f12)
Owners Guide (post-2002-fmt)
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
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
11

MINI MESSAGE CENTER WARNING DISPLAYS (IF EQUIPPED)
Door ajar:Displays when the
ignition is in the ON position and
any door is open.
Low fuel:Displays when the fuel
level in the fuel tank is at or near
empty (refer toFuel gaugein this
chapter).
Check fuel cap:Displays when the
fuel cap may not be properly
installed. Continued driving with
this display on may cause the
Service engine soon warning light to
come on. Refer toFuel filler capin theMaintenance and
Specificationschapter.
Check gauge:Displays when any of
the following conditions has
occurred:
•The engine coolant temperature
is high.
•The engine oil pressure is low.
•The fuel gauge is at or near empty.
Trans fault:Displays 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.
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the OFF/LOCK 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.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
19

The message center will display the last selected feature if there are no
more warning messages. This allows you to use the full functionality of
the message center after you acknowledge the warning by pressing the
RESET control and clearing the warning message.
Warning messages that have been reset are divided into two categories:
•They will reappear on the display ten minutes from the reset.
•They will not reappear until an ignition OFF-ON cycle has been
completed.
This acts as a reminder that these warning conditions still exist within
the vehicle.
Warning display Status
Door ajar Warning can be reset
Low fuel level Warning returns after 10 minutes
Check charging system
Check traction control™
Low brake fluid level
Low oil pressure
Check engine temperature
Reduced engine power
Stop engine safely
Check fuel cap Warning returns after the ignition key
is turned from OFF to ON.
Transmission malfunction
Low tire pressure (if equipped)
Tire pressure monitor fault (if
equipped)
Tire pressure sensor fault (if
equipped)
Engine failsafe mode
DOOR AJAR.Displayed when a door is not completely closed.
TRANSMISSION MALFUNCTION.Displayed when the transmission is
not operating properly. If the warning stays on or continues to come on,
contact your authorized dealer as soon as possible.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
131

CHECK ENGINE TEMPERATURE.Displayed when the engine
coolant is overheating. Stop the vehicle as soon as safely possible, turn
off the engine and let it cool. Check the coolant and coolant level. Refer
toEngine coolantin theMaintenance and Specificationschapter. If
the warning stays on or continues to come on, contact your authorized
dealer as soon as possible.
Never remove the coolant reservoir cap while the engine is
running or hot.
REDUCED ENGINE POWER.Displayed when the engine is
overheating. Stop the vehicle as soon as safely possible, turn off the
engine. If the warning stays on or continues to come on, contact your
authorized dealer as soon as possible.
STOP ENGINE SAFELY.Displayed when the engine is overheating.
Stop the vehicle as soon as safely possible, turn off the engine. If the
warning stays on or continues to come on, contact your authorized
dealer as soon as possible.
LOW FUEL LEVEL.Displayed as an early reminder of a low fuel
condition.
CHECK CHARGING SYSTEM.Displayed when the electrical system is
not maintaining proper voltage. If you are operating electrical accessories
when the engine is idling at a low speed, turn off as many of the
electrical loads as soon as possible. If the warning stays on or comes on
when the engine is operating at normal speeds, have the electrical
system checked as soon as possible.
CHECK TRACTION CONTROL™.Displayed when the Traction
Control™ system is not operating properly. If this message is displayed
on the message center the Traction Control™ system will be partially
operable. If this warning stays on, contact your authorized dealer for
service as soon as possible. For further information, refer toTraction
control™in theDrivingchapter.
LOW BRAKE FLUID LEVEL.Indicates the brake fluid level is low and
the brake system should be inspected immediately. Refer toBrake fluid
reservoirin theMaintenance and Specificationschapter.
LOW OIL PRESSURE.Displayed when the engine oil pressure is low. If
this warning message is displayed, check the level of the engine oil.
Refer toEngine oilin theMaintenance and Specificationschapter for
information about adding engine oil. If the oil level is OK and this
warning persists, shut down the engine immediately and contact your
authorized dealer for service.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
132

CHECK FUEL CAP.Displayed when the fuel filler cap is not properly
installed. Check the fuel filler cap for proper installation. Refer toFuel
filler capunder theFuel information sectionin theMaintenance and
Specificationschapter.
LOW TIRE PRESSURE (if equipped).Displayed when one or more
tires on your vehicle have low tire pressure. Refer toInflating Your
Tiresin theTires, Wheels and Loadingchapter.
TIRE PRESSURE MONITOR FAULT (if equipped).Displayed when
the Tire Pressure Monitoring System is malfunctioning. If the warning
stays on or continues to come on, have the system inspected by your
authorized dealer.
TIRE PRESSURE SENSOR FAULT (if equipped).Displayed when a
tire pressure sensor is malfunctioning, or your spare tire is in use. For
more information on how the system operates under these conditions,
refer toUnderstanding Your Tire Pressure Monitoring Systemin the
Tires, Wheels and Loadingchapter. If the warning stays on or
continues to come on, have the system inspected by your authorized
dealer.
ENGINE FAILSAFE MODE.Displayed when the engine has defaulted
to a ’limp-home’ operation. If the warning stays on or continues to come
on, contact your authorized dealer as soon as possible.
DATA ERR.These messages indicate improper operation of the vehicle
network communication between electronic modules.
•Fuel computer
•Charging system
•Autolamp delay
•Auto locks
•Brake fluid
•Compass
•Outside temperature
•Engine sensor
Contact your authorized dealer as soon as possible if these messages
occur on a regular basis.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
133

•Remove the tire chains when they are no longer needed. Do not use
tire chains on dry roads.
•The suspension insulation and bumpers will help prevent vehicle
damage. Do not remove these components from your vehicle when
using snow tires and chains.
VEHICLE LOADING – WITH AND WITHOUT A TRAILER
This section will guide you in the proper loading of your vehicle and/or
trailer, to keep your loaded vehicle weight within its design rating
capability, with or without a trailer. Properly loading your vehicle will
provide maximum return of vehicle design performance. Before loading
your vehicle, familiarize yourself with the following terms for determining
your vehicle’s weight ratings, with or without a trailer, from the vehicle’s
Tire Label or Safety Compliance Certification Label:
Base Curb Weight– is the weight of the vehicle including a full tank of
fuel and all standard equipment. It does not include passengers, cargo, or
optional equipment.
Vehicle Curb Weight– is the weight of your new vehicle when you
picked it up from your authorized dealer plus any aftermarket
equipment.
Payload– is the combined weight of cargo and passengers that the
vehicle is carrying. The maximum payload for your vehicle can be found
on the Tire Label on the B-Pillar or the edge of the driver’s door
(vehicles exported outside the US and Canada may not have a Tire
Label). Look for“THE COMBINED WEIGHT OF OCCUPANTS AND
CARGO SHOULD NEVER EXCEED XXX kg OR XXX lb.”for
maximum payload. The payload listed on the Tire Label is the maximum
payload for the vehicle as built by the assembly plant. If any aftermarket
or authorized-dealer installed equipment has been installed on the
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
237

2. Arrange for the vehicle to be taken to an authorized dealer.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
Never remove the coolant reservoir cap while the engine is
running or hot.
5. Restart the engine and take your vehicle to an authorized dealer.
Driving the vehicle without repairing the engine problem
increases the chance of engine damage. Take your vehicle to an
authorized dealer as soon as possible.
FUEL FILTER
For fuel filter replacement, see your authorized dealer. Refer to
scheduled maintenance informationfor the appropriate intervals for
changing the fuel filter.
Replace the fuel filter with an authorized Motorcraft part. The
customer warranty may be void for any damage to the fuel system
if an authorized Motorcraft fuel filter is not used.
WHAT YOU SHOULD KNOW ABOUT AUTOMOTIVE FUELS
Important safety precautions
Do not overfill the fuel tank. The pressure in an overfilled tank
may cause leakage and lead to fuel spray and fire.
The fuel system may be under pressure. If the fuel filler cap is
venting vapor or if you hear a hissing sound, wait until it stops
before completely removing the fuel filler cap. Otherwise, fuel may
spray out and injure you or others.
If you do not use the proper fuel filler cap, excessive vacuum in
the fuel tank may damage the fuel system or cause the fuel cap
to disengage in a collision, which may result in possible personal injury.
Automotive fuels can cause serious injury or death if misused or
mishandled.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
357