2008 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS warning

To deactivate the Tow/Haul feature and return to normal driving mode,
press the button on the end of the gearshift lever. The TOW HAUL light
will no longer be illuminated.
When you shut-off and restart the engine, the transmission will
automatically return to normal D (Overdrive) mode (Tow/Haul OFF).
WARNING:Do not use the Tow/Haul feature when driving in icy
or slippery conditions as the increased engine braking can cause
the rear wheels to slide and the vehicle to swing around with the
possible loss of vehicle control.
3 (Third)
Transmission starts and operates in third gear only.
Used for improved traction on slippery roads. Selecting 3 (Third)
provides engine braking.
2 (Second)
Use 2 (Second) to start-up on slippery roads or to provide additional
engine braking on downgrades.
1 (First)
•Provides maximum engine braking.
•Allows upshifts by moving gearshift lever.
•The transmission will not downshift into 1 (First) at high speeds; it
will downshift to a lower gear and then shift into 1 (First) when the
vehicle reaches slower speeds.
Forced downshifts
•Allowed in D (Overdrive) with the Tow/Haul feature on or off.
•Depress the accelerator to the floor.
•Allows transmission to select an appropriate gear.
If your vehicle gets stuck in mud or snow
If your vehicle gets stuck in mud or snow, it may be rocked out by
shifting between forward and reverse gears, stopping between shifts in a
steady pattern. Press lightly on the accelerator in each gear.
Do not rock the vehicle if the engine is not at normal operating
temperature or damage to the transmission may occur.
Do not rock the vehicle for more than a minute or damage to the
transmission and tires may occur, or the engine may overheat.
2008 Motorhome(mot)
Supplement
USA(fus)
Driving
59

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
9 20A Stoplamps: Vehicle turn/stop
lamps, Body builder rear turn/stop
feeds, Body builder stop lamp
feed
10 10A Instrument cluster memory,
Power brake assist lamp*
11 30A Wiper/Washer module, Wiper feed
12 — Not used
13 10A ABS module
14 10A Warning chime module, Power
brake assist module*, Instrument
cluster power, Instrument cluster
warning lamps
15 15A Left turn signal feed
16 20A Body builder battery (+12V) feed
17 5A Body builder radio feed
18 — Not used
19 5A DRL relays
20 — Not used
21 15A Right turn signal feed
22 20A Trailer tow turn signals
23 10A Cluster run/accessory
24 — Not used
25 10A Body builder right-hand low beam
headlamp feed
26 10A Brake shift interlock actuator
27 — Not used
28 — Not used
29 — Not used
30 — Not used
31 10A Body builder left-hand low beam
headlamp feed
2008 Motorhome(mot)
Supplement
USA(fus)
Roadside Emergencies
64

Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
WARNING:Always disconnect the battery before servicing high
current fuses.
WARNING:To reduce risk of electrical shock, always replace
the cover to the Power Distribution Box before reconnecting the
battery or refilling fluid reservoirs.
If the battery has been disconnected and reconnected, refer to the
Batterysection of theMaintenance and Specificationschapter.
2008 Motorhome(mot)
Supplement
USA(fus)
Roadside Emergencies
66

The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 5A* Power brake assist module***
2 10A* A/C compressor clutch
3 20A* A/C clutch relay coil, Mass Air
Flow Sensor (MAFS) with IAT,
Vapor Management Valve, Engine
Heated Exhaust Gas Oxygen
(HEGO) sensor #11, HEGO #21
4 5A* Powertrain Control Module (PCM)
memory
5 20A* PCM power
6 20A* Park lamp feeds, Instrument panel
fuse #41, Warning chime module,
Trailer tow running lamp relay
coil, I/P dimmer module
7 20A* Ignition coils, Radio capacitors
8 10A* Stoplamp switch (logic): Power
brake assist module***, Speed
control module, PCM, Anti-lock
Brake System (ABS) module,
Brake shift interlock actuator
9 10A* Starter main relay coil, Starter
ground relay coil
10 20A* Daytime Running Lamps (DRL)
11 20A* Fuel pump relay coil, PCM power
12 25A* Trailer tow back-up lamps feed, IP
- backup lamp feed
13 30A** Trailer tow electric brake
controller feed
14 60A** IP battery feed (fuse #9, 15, 21)
15 20A Trailer tow park lamps
16 60A** ABS module
2008 Motorhome(mot)
Supplement
USA(fus)
Roadside Emergencies
67

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
2008 Motorhome(mot)
Supplement
USA(fus)
Roadside Emergencies
69

•Use snow chains on the end of the vehicle with the dissimilar spare
tire/wheel
The usage of a full-size dissimilar spare tire/wheel 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
•All-Wheel driving capability (if applicable)
•Load leveling adjustment (if applicable)
When driving with the full-size dissimilar spare tire/wheel additional
caution should be given to:
•Towing a trailer
•Driving vehicles equipped with a camper body
•Driving vehicles with a load on the cargo rack
Drive cautiously when using a full-size dissimilar spare tire/wheel and
seek service as soon as possible.
Stopping and securing the vehicle
1. Park on a level surface.
2. Activate the warning flashers.
3. Place the gearshift in P (Park).
2008 Motorhome(mot)
Supplement
USA(fus)
Roadside Emergencies
71

4. Apply the parking brake and turn
engine OFF.
Tire change procedure
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 (other side and
end of the vehicle) to the tire being changed.
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.
1. Block the wheel that is diagonally
opposite the tire you are changing.
The parking brake is on the
transmission. Therefore, the vehicle
will not be prevented from moving
when a rear wheel is lifted, even if
the parking brake is applied. Be sure to block both directions of the
wheel that is diagonally opposite to the wheel that is being lifted.
WARNING:If the vehicle slips off the jack, you or someone else
could be seriously injured.
2. Remove the spare tire and jack from the storage location.
2008 Motorhome(mot)
Supplement
USA(fus)
Roadside Emergencies
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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.
2008 Motorhome(mot)
Supplement
USA(fus)
Roadside Emergencies
73