flat tire FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2008 11.G User Guide
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7.H:Indicates the tire’s speed rating. The speed rating denotes the
speed at which a tire is designed to be driven for extended periods of
time under a standard condition of load and inflation pressure. The tires
on your vehicle may operate at different conditions for load and inflation
pressure. These speed ratings may need to be adjusted for the difference
in conditions. The ratings range from 81 mph (130 km/h) to 186 mph
(299 km/h). These ratings are listed in the following chart.
Note:You may not find this information on all tires because it is not
required by federal law.
Letter rating Speed rating - mph (km/h)
M 81 mph (130 km/h)
N 87 mph (140 km/h)
Q 99 mph (159 km/h)
R 106 mph (171 km/h)
S 112 mph (180 km/h)
T 118 mph (190 km/h)
U 124 mph (200 km/h)
H 130 mph (210 km/h)
V 149 mph (240 km/h)
W 168 mph (270 km/h)
Y 186 mph (299 km/h)
Note:For tires with a maximum speed capability over 149 mph
(240 km/h), tire manufacturers sometimes use the letters ZR. For
those with a maximum speed capability over 186 mph (299 km/h), tire
manufacturers always use the letters ZR.
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13.Maximum Permissible Inflation Pressure:Indicates the tire
manufacturers’ maximum permissible pressure and/or the pressure at
which the maximum load can be carried by the tire. This pressure is
normally higher than the manufacturer’s recommended cold inflation
pressure which can be found on either the Safety Compliance
Certification Label. See the completed vehicle’s owner’s guide for the
location of the Safety Compliance Certification Label. The cold inflation
pressure should never be set lower than the recommended pressure on
the vehicle label.
The tire suppliers may have additional markings, notes or warnings such
as standard load, radial tubeless, etc.
Additional information contained on the tire sidewall for “LT” type
tires
“LT” type tires have some additional
information beyond those of “P”
type tires; these differences are
described below.
Note:Tire Quality Grades do not
apply to this type of tire.
1.LT:Indicates a tire, designated by
the Tire and Rim Association
(T&RA), that is intended for service
on light trucks.
2.Load Range/Load Inflation
Limits:Indicates the tire’s
load-carrying capabilities and its
inflation limits.
3.Maximum Load Dual lb. (kg) at psi (kPa) cold:Indicates the
maximum load and tire pressure when the tire is used as a dual; defined
as four tires on the rear axle (a total of six or more tires on the vehicle).
4.Maximum Load Single lb. (kg) at psi (kPa) cold:Indicates the
maximum load and tire pressure when the tire is used as a single;
defined as two tires (total) on the rear axle.
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ROADSIDE ASSISTANCE
Getting roadside assistance
To fully assist if you should have a vehicle concern, Ford Motor Company
offers a complimentary roadside assistance program. This program is
separate from the New Vehicle Limited Warranty. The service is available:
•24–hours, seven days a week
•for the coverage period listed on the Roadside Assistance Card
included in your Owner Guide portfolio.
Roadside assistance will cover:
•a flat tire change with a good spare
•battery jump start
•lock-out assistance (key replacement cost is the customer’s
responsibility)
•fuel delivery (fuel cost is the customer’s responsibility)
•towing of your disabled vehicle to the nearest authorized dealer
Canadian customers refer to your Customer Information Guide
for information on:
•coverage period
•exact fuel amounts
•towing of your disabled vehicle
Using roadside assistance
Customers in the U.S. and Canada who require roadside assistance, may
contact 1-800-444-3311.
HAZARD FLASHERS
Use only in an emergency to warn traffic of vehicle breakdown,
approaching danger, etc. The hazard flashers can be operated when the
ignition is off.
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Diode/Relay module
The module box is located by the power distribution box in front of the
radiator in the engine compartment.
The components are coded as follows:
Relay location Description
1 One touch integrated start (ATO diode)
2 Not used
3 Not used
4 DRL power (relay)
5 Reverse lamps (relay)
6 Trailer tow parking lamps (relay)
7 Not used
8 Starter ground (relay)
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.
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
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3. Loosen the wheel nut by pulling up on the handle of the lug nut
wrench about one-half turn (counterclockwise). Do not remove the
wheel lug nuts until you raise the tire off the ground.
Replacing the tire
WARNING:Failure to follow the instructions below may result
in serious personal injury. Do not put any part of your body
under the vehicle while the vehicle is on a jack. Do not start the
engine while the vehicle is on a jack. Only use the jack for emergency
wheel and tire changing. Only select a jack with a rated capacity
sufficient to lift and hold up the vehicle.
4. Position the jack to raise the front or rear wheel. Raise the vehicle
with the jack applied to the axle(s).
•Never use the rear differential
as a jacking point.
5. Raise the vehicle until the wheel is completely off the ground.
6. Remove the lug nuts with the lug nut wrench.
7. Replace the flat tire with the spare tire.
8. Use the lug nut wrench to screw
the lug nut snugly against the
wheel.
9. Lower the vehicle.
10. Remove the jack and fully
tighten the lug nuts in the order shown. Refer toWheel lug nut torque
specificationslater in this chapter for the proper lug nut torque
specification.
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WHEEL LUG NUT TORQUE SPECIFICATIONS
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
19.5 in. wheels: M14 x
1.5150 200
22.5 in. wheels: M22 x
1.5450 610
* Torque specifications are for nut and bolt threads free of dirt and
rust. Use only Ford recommended replacement fasteners.
On all two-piece flat wheel nuts,
apply one drop of motor oil between
the flat washer and the nut. Do not
apply motor oil to the wheel nut
threads or the wheel stud threads.
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.
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.
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•Resting your foot on the brake pedal while driving may reduce fuel
economy.
•Combine errands and minimize stop-and-go driving.
Maintenance
•Keep tires properly inflated and use only recommended size.
•Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
•Use recommended engine oil. Refer toMaintenance product
specifications and capacitiesin this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found inscheduled maintenance information.
Conditions
•Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
•Carrying unnecessary weight may reduce fuel economy (approximately
1 mpg [0.4 km/L] is lost for every 400 lb [180 kg] of weight carried).
•Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
•Using fuel blended with alcohol may lower fuel economy.
•Fuel economy may decrease with lower temperatures during the first
8–10 miles (12–16 km) of driving.
•Driving on flat terrain offers improved fuel economy as compared to
driving on hilly terrain.
•Transmissions give their best fuel economy when operated in the top
cruise gear and with steady pressure on the gas pedal.
•Close windows for high speed driving.
EPA fuel economy estimates
Every new vehicle should have a window sticker containing EPA fuel
economy estimates. Contact your authorized dealer if the window sticker
is not supplied with your vehicle. The EPA fuel economy estimates
should be your guide for the fuel economy comparisons with other
vehicles. Your fuel economy may vary depending upon the method of
operation and conditions.
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headlamps, flash to pass ..........17
instrument panel, dimming .....17
Lights, warning and indicator ......8
anti-lock brakes (ABS) ............53
Load limits ...................................39
Loading instructions ...................43
Lubricant specifications ...........121
Lug nuts ......................................75
M
Message center ...........................11
Motorcraft parts ................101, 120
O
Octane rating ............................104
Oil (see Engine oil) ....................91
Overdrive .....................................19
P
Parking brake ..............................54
Parts (see Motorcraft parts) ....120
Power distribution box
(see Fuses) .................................66
Power steering
fluid, checking and adding ....112
fluid, refill capacity ................121
fluid, specifications .................121
R
Relays ....................................62, 69
Roadside assistance ....................61
S
Safety defects, reporting ......86–87Servicing your vehicle ................89
Spark plugs,
specifications .....................120, 124
Special notice ................................4
Specification chart,
lubricants ...................................121
Speed control ..............................19
Starting your vehicle ............48–50
jump starting ............................75
Steering wheel
tilting .........................................18
T
Tilt steering wheel ......................18
Tires .......................................22–23
alignment ..................................32
care ............................................28
changing ....................................71
checking the pressure ..............27
inflating .....................................24
replacing ..............................30, 73
rotating ......................................32
safety practices .........................31
sidewall information .................33
snow tires and chains ..............38
spare tire ...................................69
terminology ...............................23
tire grades .................................23
treadwear ............................22, 29
Towing .........................................44
trailer towing ............................44
wrecker ......................................80
Transmission ...............................55
automatic operation .................19
brake-shift interlock (BSI) ......55
fluid, checking and adding
(automatic) .............................115
fluid, refill capacities ..............121
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