Page 3 of 312
Cleaning 229
Maintenance and Specifications 236
Engine compartment 238
Engine oil 239
Battery 242
Fuel information 250
Air filter(s) 267
Tire Information 269
Part numbers 283
Refill capacities 284
Lubricant specifications 287
Accessories 302
Index 305
All rights reserved. Reproduction by any means, electronic or mechanical
including photocopying, recording or by any information storage and retrieval
system or translation in whole or part is not permitted without written
authorization from Ford Motor Company. Ford may change the contents without
notice and without incurring obligation.
Copyright © 2004 Ford Motor Company
Table of Contents
3
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Page 4 of 312

CALIFORNIA Proposition 65 Warning
WARNING:Engine exhaust, some of its constituents, and
certain vehicle components contain or emit chemicals known to
the State of California to cause cancer and birth defects or other
reproductive harm. In addition, certain fluids contained in vehicles and
certain products of component wear contain or emit chemicals known
to the State of California to cause cancer and birth defects or other
reproductive harm.
CONGRATULATIONS
Congratulations on acquiring your new Ford. Please take the time to get
well acquainted with your vehicle by reading this handbook. The more
you know and understand about your vehicle, the greater the safety and
pleasure you will derive from driving it.
For more information on Ford Motor Company and its products visit the
following website:
•In the United States: www.ford.com
•In Canada: www.ford.ca
•In Australia: www.ford.com.au
•In Mexico: www.ford.com.mx
Additional owner information is given in separate publications.
ThisOwner’s Guidedescribes every option and model variant available
and therefore some of the items covered may not apply to your
particular vehicle. Furthermore, due to printing cycles it may describe
options before they are generally available.
Remember to pass on thisOwner’s Guidewhen reselling the vehicle. It
is an integral part of the vehicle.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Introduction
Introduction
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Page 5 of 312

Fuel pump shut-off switch:In the event of an accident the
safety switch will automatically cut off the fuel supply to the
engine. The switch can also be activated through sudden vibration (e.g.
collision when parking). To reset the switch, refer to theFuel pump
shut-off switchin theRoadside Emergencieschapter.
SAFETY AND ENVIRONMENT PROTECTION
Warning symbols in this guide
How can you reduce the risk of personal injury to yourself or others? In
this guide, answers to such questions are contained in comments
highlighted by the warning triangle symbol. These comments should be
read and observed.
Warning symbols on your vehicle
When you see this symbol, it is
imperative that you consult the
relevant section of this guide before
touching or attempting adjustment
of any kind.
Protecting the environment
We must all play our part in
protecting the environment. Correct
vehicle usage and the authorized
disposal of waste, cleaning and
lubrication materials are significant
steps towards this aim. Information in this respect is highlighted in this
guide with the tree symbol.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Introduction
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Page 6 of 312

BREAKING-IN YOUR VEHICLE
Your vehicle does not need an extensive break-in. Try not to drive
continuously at the same speed for the first 1,000 miles (1,600 km) of
new vehicle operation. Vary your speed frequently in order to give the
moving parts a chance to break in.
Drive your new vehicle for at least 500 miles (800 km) before towing a
trailer or snowplowing.
Do not add friction modifier compounds or special break-in oils during the
first few thousand miles (kilometers) of operation, since these additives
may prevent piston ring seating. SeeEngine oilin theMaintenance and
Specificationschapter for more information on oil usage.
SPECIAL NOTICES
Emission warranty
The New Vehicle Limited Warranty includes Bumper-to-Bumper
Coverage, Safety Restraint Coverage, Corrosion Coverage, and 6.0L
Power Stroke Diesel Engine Coverage. In addition, your vehicle is eligible
for Emissions Defect and Emissions Performance Warranties. For a
detailed description of what is covered and what is not covered, refer to
theWarranty Guidethat is provided to you along with your Owner’s
Guide.
Service Data Recording
Service data recorders in your vehicle are capable of collecting and
storing diagnostic information about your vehicle. This potentially
includes information about the performance or status of various systems
and modules in the vehicle, such as engine, throttle, steering or brake
systems. In order to properly diagnose and service your vehicle, Ford
Motor Company, Ford of Canada, and service and repair facilities may
access vehicle diagnostic information through a direct connection to your
vehicle when diagnosing or servicing your vehicle.
2004 F250/350/450/550(f23)
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USA English(fus)
Introduction
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Page 9 of 312

If your vehicle is equipped with the
Ford Ambulance Preparation
Package, it will be indicated on the
Certification label. The label is
located on the driver’s side door
pillar or on the rear edge of the
driver’s door. You can determine
whether the ambulance
manufacturer followed Ford’s
recommendations by directly
contacting that manufacturer. Ford
Ambulance Preparation Package is
only available on certain 6.0L Diesel
engine equipped vehicles.
Using your vehicle as a stationary power source (PTO)
Refer to theDrivingchapter for more information and guidelines for
operating a vehicle equipped with an aftermarket power take-off system.
Middle East/North Africa vehicle specific information
For your particular global region, your vehicle may be equipped with
features and options that are different from the ones that are described
in thisOwner’s Guide;therefore, a supplement has been supplied that
complements this book. By referring to the pages in the provided
supplement, you can properly identify those features, recommendations
and specifications that are unique to your vehicle.Refer to this
Owner’s Guide for all other required information and warnings.
2004 F250/350/450/550(f23)
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USA English(fus)
Introduction
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Page 11 of 312
Vehicle Symbol Glossary
Power Windows
Front/Rear
Power Window Lockout
Child Safety Door
Lock/UnlockInterior Luggage
Compartment Release
Symbol
Panic AlarmEngine Oil
Engine CoolantEngine Coolant
Temperature
Do Not Open When HotBattery
Avoid Smoking, Flames,
or SparksBattery Acid
Explosive GasFan Warning
Power Steering FluidMaintain Correct Fluid
LevelMAX
MIN
Emission SystemEngine Air Filter
Passenger Compartment
Air FilterJack
Check fuel capLow tire warning
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USA English(fus)
Introduction
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WARNING LIGHTS AND CHIMES
Standard instrument cluster
Harley—Davidson instrument cluster
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause expensive repairs. A warning light may
illuminate when a problem exists with one of your vehicle’s functions.
Many lights will illuminate when you start your vehicle to make sure the
bulb works. If any light remains on after starting the vehicle, have the
respective system inspected immediately.
Service engine soon:TheService
engine soonindicator light
illuminates when the ignition is first
turned to the ON position to check
the bulb. Solid illumination after the engine is started indicates the On
Board Diagnostics System (OBD-II) has detected a malfunction. Refer to
On board diagnostics (OBD-II)in theMaintenance and Specifications
chapter. If the light is blinking, engine misfire is occurring which could
C
D
H
L
H
E
F
CH
BRAKEPRND2
SELECT
RESET
CHECK
GAGE THEFT
TRANS
TEMP
4x4
LOW
RANGERPMX1000
MPHkm/h0
20406080
00
20
40
60
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
Instrument Cluster
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Page 13 of 312

damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Check fuel cap (if equipped):
Illuminates when the fuel cap may
not be properly installed. Continued
driving with this light on may cause
the Service engine soon warning
light to come on. Refer toFuel
filler capin theMaintenance and Specificationschapter.
Check gage:Illuminates when any
of the following conditions has
occurred:
•The engine coolant temperature
is high.
•The engine oil pressure is low.
•The fuel gauge is at or near empty.
Brake system warning light:To
confirm the brake system warning
light is functional, it will
momentarily illuminate when the
ignition is turned to the ON position when the engine is not running, or
in a position between ON and START, or by applying the parking brake
when the ignition is turned to the ON position. If the brake system
warning light does not illuminate at this time, seek service immediately
from your dealership. Illumination after releasing the parking brake
indicates low brake fluid level and the brake system should be inspected
immediately by your servicing dealership.
Driving a vehicle with the brake system warning light on is
dangerous. A significant decrease in braking performance may
occur. It will take you longer to stop the vehicle. Have the vehicle
checked by your dealer immediately.
CHECK
GAGE
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
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