
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
15 — Not used
16 — Not used
17 15A* Exterior lamps
18 20A* Flasher, Brake On-Off (BOO)
lamps
19 10A* Body Security Module (BSM)
(Security)
20 15A* Trailer tow Electric Brake
Controller (EBC)
21 20A* Heated seats
22 20A* Engine control
23 20A* Engine control (gasoline engine
only)/Climate control (Diesel
engine only)
24 15A* Tow haul, Blower relay, Electronic
Automatic Temperature Control
(EATC)
25 — Not used
26 10A* Airbags
27 15A* Ignition switch RUN feed
28 10A* Trailer tow EBC logic
29 10A* Customer access
30 15A* High beam headlamps
31 15A* Starter relay
32 5A* Radio (start)
33 15A* Cluster, 4x4, Wipers
34 10A* BOO switch (Low current)
35 10A* Instrument cluster
36 — Not used
37 15A* Horn
38 20A* Trailer tow park lamps
39 15A* Heated mirrors
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
215

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
40 20A* Fuel pump
41 10A* Instrument cluster
42 15A* Delayed accessory
43 10A* Fog lamps
44 — Not used
45 10A* Ignition switch RUN/START feed
46 10A* Left-hand low beam headlamp
47 10A* Right-hand low beam headlamp
48 — Not used
101 30A** Trailer tow EBC
102 30A** BSM (Door locks)
103 30A** Ignition switch
104 — Not used
105 — Not used
106 — Not used
107 20A** Trailer tow battery charge
108 30A** Upfitter #1
109 30A** Upfitter #2
110 30A** Ignition switch
111 — Not used
112 30A** Power seat (Driver)
113 30A** Starter
114 30A** Power seat (Passenger)
115 20A** Upfitter control
116 30A** Ignition switch
210 — Not used
211
1 2ISO relay Back-up lamps
212 — Not used
301 Full ISO relay Trailer tow battery charge
302 Full ISO relay Powertrain Control Module (PCM)
303 — Not used
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
216

Running out of fuel
Avoid running out of fuel because this situation may have an adverse
affect on powertrain components.
If you have run out of fuel:
•You may need to cycle the ignition from OFF to ON several times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, cranking time will take a few seconds longer
than normal.
•Normally, adding one gallon of fuel is enough to restart the engine. If
the vehicle is out of fuel and on a steep grade, more than one gallon
may be required.
•TheService engine soonindicator (
) may come on. For more
information on theService engine soonindicator, refer to the
Instrument Clusterchapter.
ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1,000 miles (1,600 km)
of driving (engine break-in period). You will get a more accurate
measurement after 2,000 miles-3,000 miles (3,000 km–5,000 km).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theMaintenance
Product Specifications and Capacitiessection of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
278

For consistent results when filling the fuel tank:
•Turn the engine/ignition off prior to refueling, an error in the reading
will result if the engine is left running.
•Use the same filling rate setting (low-medium-high) each time the
tank is filled.
•Allow no more than 2 automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading
(in miles or kilometers).
2. Each time you fill the tank, record the amount of fuel added (in
gallons or liters).
3. After at least three to five tank fill-ups, fill the fuel tank and record
the current odometer reading.
4. Subtract your initial odometer reading from the current odometer
reading.
5. Follow one of the simple calculations in order to determine fuel
economy:
Calculation 1:Divide total miles traveled by total gallons used.
Calculation 2:Multiply liters used by 100, then divide by total
kilometers traveled.
Keep a record for at least one month and record the type of driving (city
or highway). This will provide an accurate estimate of the vehicle’s fuel
economy under current driving conditions. Additionally, keeping records
during summer and winter will show how temperature impacts fuel
economy. In general, lower temperatures give lower fuel economy.
Driving style — good driving and fuel economy habits
Give consideration to the lists that follow and you may be able to change
a number of variables and improve your fuel economy.
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
279

•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.
•Four-wheel-drive operation (if equipped) is less fuel efficient than
two-wheel-drive operation.
•Close windows for high speed driving.
EPA window sticker
Every new vehicle should have the EPA window sticker. Contact your
authorized dealer if the window sticker is not supplied with your vehicle.
The EPA window sticker should be your guide for the fuel economy
comparisons with other vehicles.
It is important to note the box in the lower left corner of the window
sticker. These numbers represent the Range of MPG (L/100 km)
expected on the vehicle under optimum conditions. Your fuel economy
may vary depending upon the method of operation and conditions.
EMISSION CONTROL SYSTEM
Your vehicle is equipped with various emission control components and a
catalytic converter which will enable your vehicle to comply with
applicable exhaust emission standards. To make sure that the catalytic
converter and other emission control components continue to work
properly:
•Use only the specified fuel listed.
•Avoid running out of fuel.
•Do not turn off the ignition while your vehicle is moving, especially at
high speeds.
•Have the items listed in yourscheduled maintenance information
performed according to the specified schedule.
The scheduled maintenance items listed in thescheduled maintenance
informationare essential to the life and performance of your vehicle
and to its emissions system.
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
281

ENGINE DATA
Engine 5.4L V8 engine 6.8L V10 engine
Cubic inches 330 415
Required fuel 87 octane 87 octane
Firing order 1-3-7-2-6-5-4-8 1-6-5-10-2-7-3-8-4-9
Spark plug gap1.02–1.28mm
(0.040–0.050 inch)*1.02–1.28mm
(0.040–0.050 inch)*
Ignition system Coil on plug Coil on plug
Compression ratio 9.8:1 9.2:1
*The 5.4L 3V and 6.8L 3V spark plug gap CANNOT be adjusted.
Drivebelt routing
5.4L V8/6.8L V10 engines
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
298

Fluid capacities .........................294
Foglamps .....................................45
Four-Wheel Drive vehicles .......190
description ..............................194
driving off road .......................196
electronic shift ................190, 194
indicator light .........................191
lever operated shift ................192
manual locking hubs ..............190
preparing to drive your
vehicle .....................................181
Fuel ............................................273
calculating fuel
economy ............................76, 278
cap ...........................................275
capacity ...................................294
choosing the right fuel ...........276
comparisons with EPA fuel
economy estimates .................281
detergent in fuel .....................277
filling your vehicle with
fuel ...........................273, 275, 278
filter, specifications ........273, 293
fuel pump shut-off switch .....210
improving fuel economy ........278
octane rating ...................277, 298
quality ......................................277
running out of fuel .................278
safety information relating to
automotive fuels .....................273
Fuel pump shut-off switch .......210
Fuses ..................................211–212
G
Gas cap (see Fuel cap) ............275
Gas mileage
(see Fuel economy) .................278Gauges .........................................16
transmission fluid
temperature gauge ...................21
H
Hazard flashers .........................210
Head restraints ...........................94
Headlamps ...................................44
aiming ..................................47, 49
autolamp system .......................44
daytime running lights .............45
flash to pass ..............................46
high beam .................................46
replacing bulbs ...................52–55
turning on and off ....................44
Heating
heating and air conditioning
system ...........................38–39, 41
Hood ..........................................257
I
Ignition ...............................172, 298
Infant seats
(see Safety seats) .....................125
Inspection/maintenance (I/M)
testing ........................................283
Instrument panel
cleaning ...................................251
cluster ........................................12
lighting up panel and
interior .......................................46
J
Jump-starting your vehicle ......233
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
306

K
Keyless entry system .................92
Keys
positions of the ignition .........172
L
Lamps
autolamp system .......................44
daytime running light ...............45
fog lamps ...................................45
headlamps .................................44
headlamps, flash to pass ..........46
instrument panel, dimming .....46
interior lamps ...........................50
replacing bulbs ...................51–58
Lane change indicator
(see Turn signal) ........................50
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........178
speed control ............................68
Load limits .................................153
Loading instructions .................159
Locks
childproof ..................................87
Lug nuts ....................................232
Lumbar support, seats ...............99
M
Manual transmission .................185
fluid capacities ........................294
reverse .....................................187
Message center ...............72, 74–75
english/metric button ...............79
system check button ................78warning messages .....................80
Mirrors .........................................60
automatic dimming rearview
mirror ........................................63
fold away ...................................65
heated ........................................64
side view mirrors (power) .......64
signal .........................................65
Moon roof ....................................71
Motorcraft parts ................273, 293
O
Octane rating ............................277
Oil (see Engine oil) ..................261
Overdrive .....................................60
P
Parking brake ............................179
Parts (see Motorcraft parts) ....293
Pedals (see Power adjustable
foot pedals) .................................66
Power adjustable foot pedals .....66
Power distribution box
(see Fuses) ...............................217
Power door locks ........................85
Power mirrors .............................64
Power point .................................61
Power steering ..........................180
fluid, checking and adding ....283
fluid, refill capacity ................294
Power Windows ...........................62
Preparing to drive your
vehicle ........................................181
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
307