Fuse/Relay
Location Fuse Amp
Rating Protected Circuits
74 20A** Gasoline engines: Vehicle power
(VPWR): Heated exhaust gas oxygen
sensor, CMS, Mass air flow sensor,
Electronic vapor management valve,
CMCV, Variable cam timing, IMTV
Diesel engine: VPWR: Engine loads
75 5A** Back-up relay coil power
76 20A** Gasoline engines: VPWR: PCM
Diesel engine: VPWR: ECM
77 10A** ABS module logic
* Cartridge fuses ** Mini fuses
CHANGING A FLAT TIRE
If you get a flat tire while driving:
• do not brake heavily.
• gradually decrease the vehicle’s speed.
• hold the steering wheel firmly.
• slowly move to a safe place on the side of the road.
Your vehicle may be equipped with a conventional spare tire that is
different in one or more of the following: type, brand, size, speed rating
and tread design. If this is the case, this dissimilar spare tire is still rated
for your vehicle loads (GAWR and GVWR). Temporary spare tires are not
equipped with Tire Pressure Monitor System (TPMS) sensors if the
system is present.
WARNING: The use of tire sealant may damage your Tire
Pressure Monitoring System (if equipped) and should not be
used.
WARNING: If your vehicle is equipped with a Tire Pressure
Monitoring System, refer to Tire Pressure Monitoring System
(TPMS) in the Tires, Wheels and Loading chapter for more
information. If the tire pressure monitor sensor becomes damaged, it
will no longer function. Roadside Emergencies
315
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Dissimilar spare tire/wheel information
WARNING: Failure to follow these guidelines could result in an
increased risk of loss of vehicle control, injury or death.
If you have a dissimilar spare tire/wheel, then it is intended for
temporary use only. This means that if you need to use it, you should
replace it as soon as possible with a road tire/wheel that is the same size
and type as the road tires and wheels that were originally provided by
Ford. If the dissimilar spare tire or wheel is damaged, it should be
replaced rather than repaired.
A dissimilar spare tire/wheel is defined as a spare tire and/or wheel that
is different in brand, size or appearance from the road tires and wheels
and can be one of three types:
1. T-type mini-spare: This spare tire begins with the letter “T” for tire
size and may have “Temporary Use Only” molded in the sidewall
2. Full-size dissimilar spare with label on wheel: This spare tire has
a label on the wheel that states: “THIS TIRE AND WHEEL FOR
TEMPORARY USE ONLY”
When driving with one of the dissimilar spare tires listed above, do not:
• Exceed 50 mph (80 km/h)
• Load the vehicle beyond maximum vehicle load rating listed on the
Safety Compliance Label
• Use snow chains on the end of the vehicle with the dissimilar spare
tire
• Use more than one dissimilar spare tire at a time
• Use commercial car washing equipment
• Try to repair the dissimilar spare tire
Use of one of the dissimilar spare tires listed above at any one wheel
location can lead to impairment of the following:
• Handling, stability and braking performance
• Comfort and noise
• Ground clearance and parking at curbs
• Winter weather driving capability
• Wet weather driving capability
It is not recommended that the vehicle be operated in 4WD modes with
a temporary emergency spare tire. If 4WD operation is necessary, do not
operate above speeds of 10 mph (16 km/h) or for distances above
50 miles (80 km).Roadside Emergencies
316
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Stopping and securing the vehicle
WARNING: To help prevent the vehicle from moving when you
change a tire, be sure the parking brake is set, then block (in
both directions) the wheel that is diagonally opposite to the tire being
changed.
Refer to the instruction sheet (located in the glove box) for detailed tire
change instructions.
Park on a level surface, activate
hazard flashers and set the parking
brake.
• Automatic transmission: Place
gearshift lever in P (Park).
• Manual transmission: Place
gearshift lever in R (Reverse).
• Electronic Shift-On-the-Fly
(ESOF) 4x4: Place transfer case
in 4x4 HIGH or 4x4 LOW before
turning off the engine.
• Manual shift transfer case 4x4: Place transfer case in 4H or 4L.
Location of the spare tire and tools
If your vehicle is equipped with a spare tire, jack and associated tools,
refer to the following table for their locations:
Tool Location
Spare tire (pick-up trucks only) Under the vehicle, just forward of
the rear bumper
Jack Regular cab and Crew Cab:
Fastened to floor pan behind
rearmost seat on passenger side
SuperCab: Under rear bench seat
on passenger sideRoadside Emergencies
318
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
2. Attach the spare tire lock key (A)
to the jack handle (B).
3. Fully insert the jack handle (with
one extension) through the bumper
hole and into the guide tube. The
key and lock will engage with a
slight push and counterclockwise
turn. Some resistance will be felt
when turning the jack handle
assembly.
4. Turn the handle counterclockwise
and lower the spare tire until you
can slide the tire rearward and the
cable is slack.
5. Remove the retainer through the center of the wheel.
Tire change procedure
WARNING: When one of the rear wheels is off the ground, the
transmission alone will not prevent the vehicle from moving or
slipping off the jack, even if the transmission is in P (Park) (automatic
transmission) or R (Reverse) (manual transmission). To help prevent
the vehicle from moving when you change the tire, be sure that the
parking brake is set and the diagonally opposite wheel is blocked.
WARNING: To prevent the vehicle from moving when you
change a tire, be sure the parking brake is set, then block (in
both directions) the wheel that is diagonally opposite (other side and
end of the vehicle) to the tire being changed.
WARNING: If the vehicle slips off the jack, you or someone else
could be seriously injured.Roadside Emergencies
320
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
WARNING: Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off the road to
avoid the danger of being hit when operating the jack or changing the
wheel.
Note: Passengers should not remain in the vehicle when the vehicle is
being jacked.
1. Turn engine off and block the
wheel that is diagonally opposite of
the flat tire using the wheel chock,
if equipped. If the vehicle is a
4x4, lock the manual hub on the
wheel.
2. Remove the jack, jack handle, lug wrench and spare tire from the
stowage locations.
3. Use the tip of the lug wrench to remove any wheel trim.
4. Loosen each wheel lug nut one-half turn counterclockwise but do not
remove them until the wheel is raised off the ground.
The following steps apply to F–250/F–350 Single Rear Wheel
(SRW) vehicles only:
5. Insert the hooked end of the jack
handle into the jack and use the
handle to slide the jack under the
vehicle.
6. Position the jack according to the
following guides:
• Front (4x2) Roadside Emergencies
321
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Never use the front or rear
differential as a jacking point.
WARNING: To lessen the
risk of personal injury, do
not put any part of your body
under the vehicle while changing a
tire. Do not start the engine when
your vehicle is on the jack. The
jack is only meant for changing
the tire.
7. Turn the jack handle clockwise
until the wheel is completely off the
ground and high enough to install
the spare tire.
8. Remove the lug nuts with the lug
wrench.
9. Replace the flat tire with the
spare tire, making sure the valve
stem is facing outward for all front wheels and single rear wheel vehicles.
If replacing an inboard rear tire on dual rear wheel vehicles, the valve
stem must be facing outward. If replacing the outboard wheel, the valve
stem must be facing inward. Reinstall the lug nuts until the wheel is
snug against the hub. Do not fully tighten the lug nuts until the wheel
has been lowered.
10. Lower the wheel by turning the jack handle counterclockwise.
Go to Step 19.
The following steps apply to F–350 Dual Rear Wheel (DRW) and
F–450/F–550 vehicles only:
11. Slide the notched end of the
jack handle over the release valve
and use the handle to slide the jack
under the vehicle. Make sure the
valve is closed by turning it
clockwise. Roadside Emergencies
323
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
5. Repeat this tightness check procedure when servicing the spare tire
pressure (every six months, per scheduled maintenance information),
or at any time that the spare tire is disturbed through service of other
components.
6. If removed, install the spare tire lock (if equipped) into the bumper
drive tube with the spare tire lock key (if equipped) and jack handle.
WHEEL LUG NUT TORQUE SPECIFICATIONS
On vehicles equipped with single rear wheels, retighten the lug nuts to
the specified torque at 500 miles (800 km) after any wheel disturbance
(tire rotation, changing a flat tire, wheel removal, etc.).
On vehicles equipped with dual rear wheels, retighten the wheel lug nuts
to the specified torque at 100 miles (160 km), and again at 500 miles
(800 km) of new vehicle operation and after any wheel disturbance (tire
rotation, changing a flat tire, wheel removal, etc.).
Bolt size Wheel lug nut torque*
lb.ft. N • m
M14 x 1.5 165 224
* Torque specifications are for nut and bolt threads free of dirt and
rust. Use only Ford recommended replacement fasteners.
It is important to follow the proper wheel mounting and lug nut torque
procedures.
On all two-piece flat wheel nuts,
apply one drop of motor oil between
the flat washer and the nut.
WARNING: When a wheel is installed, always remove any
corrosion, dirt or foreign materials present on the mounting
surfaces of the wheel or the surface of the wheel hub, brake drum or
brake disc that contacts the wheel. Ensure that any fasteners that
attach the rotor to the hub are secured so they do not interfere with
the mounting surfaces of the wheel. Installing wheels without correct
metal-to-metal contact at the wheel mounting surfaces can cause the
wheel nuts to loosen and the wheel to come off while the vehicle is in
motion, resulting in loss of control.Roadside Emergencies
330
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Inspect the wheel pilot hole prior to
installation. If there is visible
corrosion in wheel pilot hole,
remove loose particles by wiping
with clean rag and apply grease.
Apply grease only to the wheel pilot
hole surface by smearing a “dime”
(1 square cm) sized glob of grease
around the wheel pilot surface (1)
with end of finger. DO NOT apply
grease to lug nut/stud holes or
wheel-to-brake surfaces.
JUMP STARTING
WARNING: The gases around the battery can explode if
exposed to flames, sparks, or lit cigarettes. An explosion could
result in injury or vehicle damage.
WARNING: Batteries contain sulfuric acid which can burn skin,
eyes and clothing, if contacted.
Do not attempt to push-start your automatic transmission
vehicle. Automatic transmissions do not have push-start
capability. Attempting to push-start a vehicle with an automatic
transmission may cause transmission damage.
Preparing your vehicle
When the battery is disconnected or a new battery is installed, the
automatic transmission must relearn its shift strategy. As a result, the
transmission may have firm and/or soft shifts. This operation is
considered normal and will not affect function or durability of the
transmission. Over time, the adaptive learning process will fully update
transmission operation.
1. Use only a 12–volt supply to start your vehicle.
2. Do not disconnect the battery of the disabled vehicle as this could
damage the vehicle’s electrical system.
3. Park the booster vehicle close to the hood of the disabled vehicle
making sure the two vehicles do not touch. Set the parking brake on
both vehicles and stay clear of the engine cooling fan and other moving
parts. Roadside Emergencies
331
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)