2010 FORD F150 engine

SuperCrew 4x2 (145” wheelbase)
Engine Rear axle ratio Maximum
GCWR-lb. (kg)Maximum
trailer
weight-lb. (kg)
4.6L 2V3.55 10600 (4808) 5200 (2359)
3.73 11100 (5035) 5700 (2585)
4.6L 3V3.15 13000 (5897) 7500 (3402)
3.31 13500 (6123) 8100 (3674)
3.55 14900 (6759) 9400 (4264)
5.4L3.15 14000 (6350) 8500 (3856)
3.55 15300 (6940) 9800 (4445)
3.73 16900 (7666) 11300 (5126)
SuperCrew 4x2 (145” wheelbase) Harley-Davidson Version
Engine Rear axle ratio Maximum
GCWR-lb. (kg)Maximum
trailer
weight-lb. (kg)
5.4L 3.73 11200 (5080) 5300 (2404)
SuperCrew 4x4 (145” wheelbase)
Engine Rear axle ratio Maximum
GCWR-lb. (kg)Maximum
trailer
weight-lb. (kg)
4.6L 3V3.55 13500 (6123) 7700 (3493)
3.73 15100 (6849) 9300 (4218)
5.4L3.31 14000 (6350) 8100 (3674)
3.55 15500 (7031) 9600 (4355)
3.73 15500 (7031)
17100 (7756)*9600 (4355)
11200 (5080)*
*Maximum GCWR and trailer weight when equipped with Max Trailer
Tow package.
Tires, Wheels and Loading
260
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)

SuperCrew 4x4 (145” wheelbase) Harley-Davidson Version
Engine Rear axle ratio Maximum
GCWR-lb. (kg)Maximum
trailer
weight-lb. (kg)
5.4L 3.73 11200 (5080) 5100 (2313)
SuperCrew4x2 (157” wheelbase)
Engine Rear axle ratio Maximum
GCWR-lb. (kg)Maximum
trailer
weight-lb. (kg)
4.6L 2V3.55 10600 (4808) 5100 (2313)
3.73 11100 (5035) 5600 (2540)
4.6L 3V3.31 13500 (6123) 8000 (3629)
3.55 14900 (6759) 9300 (4218)
5.4L3.15 14000 (6350) 8400 (3810)
3.55 15300 (6940) 9700 (4400)
3.73 17000 (7711) 11300 (5126)
SuperCrew 4x4 (157” wheelbase)
Engine Rear axle ratio Maximum
GCWR-lb. (kg)Maximum
trailer
weight-lb. (kg)
4.6L 3V3.55 13500 (6123) 7600 (3448)
3.73 15100 (6849) 9200 (4173)
5.4L3.31 14000 (6350) 8000 (3629)
3.55 15500 (7031) 9500 (4309)
3.73 15500 (7031)
17100 (7756)*9500 (4309)
11100 (5035)*
*Maximum GCWR and trailer weight when equipped with Max Trailer
Tow package.
Trailer frontal area considerations:
•Not to exceed towing vehicle frontal area 36 square feet (3.4 square
meters) without the Class IV trailer towing package.
•Not to exceed 60 square feet (5.52 square meters) with the Class IV
trailer towing package–excluding vehicles with 3.15 rear axle ratio.
•Not to exceed 45 square feet (4.18 square meters) with the Class IV
trailer towing package for vehicles with 3.15 rear axle ratio only.
Tires, Wheels and Loading
261
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)

Trailer towing tips
•Practice 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.
•Allow more distance for stopping with a trailer attached.
•If 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. Also, see the information on tow/haul mode operation
underAutomatic transmission operationin theDrivingchapter.
•The trailer tongue weight should be 10–15% of the loaded trailer
weight.
•If you will be towing a trailer frequently in hot weather, hilly
conditions, at GCWR, 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 1,000 miles (1,600 km) of a
new vehicle, and that the first 500 miles (800 km) of towing be done
at no faster than 70 mph (113 km/h) with no full throttle starts.
•After you have traveled 50 miles (80 km), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
•To aid in engine/transmission cooling and A/C efficiency during hot
weather while stopped in traffic, place the gearshift lever in P (Park).
•Vehicles 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:
•do not allow the static water level to rise above the bottom edge of
the rear bumper.
•do not allow waves to break higher than 6 inches (15 cm) above the
bottom edge of the rear bumper.
Tires, Wheels and Loading
268
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)

STARTING
Positions of the ignition
1. Off — locks the automatic
transmission gearshift lever and
allows key removal.
Note:The ignition key cannot be
removed from the ignition unless
the gearshift lever is securely
latched in P (Park).
2. Accessory — allows the electrical
accessories such as the radio to
operate while the engine is not
running.
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.
Preparing to start your vehicle
Engine starting is controlled by the powertrain control system.
This system meets all Canadian interference-causing equipment standard
requirements regulating the impulse electrical field strength of radio
noise.
When starting a fuel-injected engine, don’t press the accelerator before
or during starting. Only use the accelerator when you have difficulty
starting the engine. For more information on starting the vehicle, refer to
Starting the enginein this chapter.
WARNING:Extended idling at high engine speeds can produce
very high temperatures in the engine and exhaust system,
creating the risk of fire or other damage.
WARNING:Do not park, idle, or drive your vehicle in dry grass
or other dry ground cover. The emission system heats up the
engine compartment and exhaust system, which can start a fire.
Driving
271
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)

WARNING:Do not start your vehicle in a closed garage or in
other enclosed areas. Exhaust fumes can be toxic. Always open
the garage door before you start the engine. SeeGuarding against
exhaust fumesin this chapter for more instructions.
WARNING:If you smell exhaust fumes inside your vehicle, have
your dealer inspect your vehicle immediately. Do not drive if you
smell exhaust fumes.
Important safety precautions
A computer system controls the engine’s idle revolutions per minute
(RPM). When the engine starts, the idle RPM runs higher than normal in
order 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 from the air induction
inlet. Do not allow the vehicle to idle for more than 10 minutes at the
higher engine RPM.
Before starting the vehicle:
1. Make sure all vehicle occupants have buckled their safety belts. For
more information on safety belts and their proper usage, refer to the
Seating and Safety Restraintschapter.
2. Make sure the headlamps and vehicle accessories are off.
3. Make sure the gearshift is in P (Park).
•4–speed transmission
Driving
272
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)

Starting the engine
1. Turn the key to 3 (on) without
turning the key to 4 (start).
2. Turn the key to 4 (start), then
release the key as soon as the
engine begins cranking. Your vehicle
has a computer assisted cranking
system that assists in starting the
engine. After releasing the key from
the 4 (start) position, the engine
may continue cranking for up to
10 seconds or until the vehicle
starts.
Note:Cranking may be stopped at any time by turning the key to the off
position.
3. After idling for a few seconds, release the parking brake, apply the
brake, shift into gear and drive.
Note:If the engine does not start on the first try, turn the key to the off
position, wait 10 seconds and try Step 2 again. If the engine still fails to
start, press the accelerator to the floor and try Step 2 again, keeping the
accelerator on the floor until the engine begins to accelerate above
cranking speeds; this will allow the engine to crank with the fuel shut off
in case the engine is flooded with fuel.
Cold weather starting (flexible fuel vehicles only)
The starting characteristics of all grades of E
85ethanol make it
unsuitable for use when ambient temperatures fall below 0°F (-18°C).
Consult your fuel distributor for the availability of winter grade ethanol.
As the outside temperature approaches freezing, ethanol fuel distributors
should supply winter grade ethanol (same as with unleaded gasoline). If
summer grade ethanol is used in cold weather conditions, 0°F to 32°F
(-18°C to 0°C), you may experience increased cranking times, rough idle
or hesitation until the engine has warmed up.
You may experience a decrease in peak performance when the engine is
cold when operating on E
85ethanol.
Do not crank the engine for more than 10 seconds at a time as starter
damage may occur. If the engine fails to start, turn the key to off and
wait 30 seconds before trying again.
Do not use starting fluid such as ether in the air intake system. Such
fluid could cause immediate explosive damage to the engine and possible
personal injury.
Driving
274
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)

If you should experience cold weather starting problems on E85ethanol,
and neither an alternative brand of E
85ethanol nor an engine block
heater is available, the addition of unleaded gasoline to your tank will
improve cold starting performance. Your vehicle is designed to operate
on E
85ethanol alone, unleaded gasoline alone, or any mixture of the two.
SeeChoosing the right fuelin theMaintenance and Specifications
chapter for more information on ethanol.
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
Carbon monoxide is present in exhaust fumes. Take precautions to avoid
its dangerous effects.
WARNING: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 1 inch (2.5 cm) or adjust the heating or
air conditioning to bring in fresh 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 block heater system is most effective when outdoor
temperatures reach below 0°F (-18°C).
For flexible fuel vehicles, if operating with E
85ethanol, an engine block
heater must be used if ambient temperature is below 0°F (-18°C).
SeeCold weather startingearlier in this chapter for more information
on starting with ethanol.
Driving
275
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)

WARNING:Failure to follow engine block heater instructions
could result in property damage or physical injury.
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.
Driving
276
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)