2004 FORD SUPER DUTY fuel cap

Fuel Filler Cap
Your fuel tank filler cap has an indexed design with a 1/8 turn on/off
feature.
When fueling your vehicle:
1. Turn the engine off.
2. Carefully turn the filler cap counterclockwise 1/8 of a turn until it
stops.
3. Pull to remove the cap from the fuel filler pipe.
4. To install the cap, align the tabs on the cap with the notches on the
filler pipe.
5. Turn the filler cap clockwise 1/8 of a turn until it stops.
If the“Service Engine Soon/Check Engine”indicator comes on and stays
on after you start the engine, the fuel filler cap may not be properly
installed. Turn off the engine, remove the fuel filler cap, align the cap
properly and reinstall it.
If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The customer warranty may
be void for any damage to the fuel tank or fuel system if the
correct genuine Ford or Motorcraft fuel filler cap is not used.
The fuel system may be under pressure. If the fuel filler cap is
venting vapor or if you hear a hissing sound, wait until it stops
before completely removing the fuel filler cap. Otherwise, fuel may
spray out and injure you or others.
If you do not use the proper fuel filler cap, excessive pressure or
vacuum in the fuel tank may damage the fuel system or cause
the fuel cap to disengage in a collision, which may result in possible
personal injury.
Choosing the right fuel
Use only UNLEADED FUEL. The use of leaded fuel is prohibited by law
and could damage your vehicle.
Do not use fuel containing methanol. It can damage critical fuel system
components.
Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based additives.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
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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.
•Your“Service Engine Soon”indicator may come on. For more
information on the“Service Engine Soon”indicator, refer to the
Instrument clusterchapter.
Fuel Filter
For fuel filter replacement, see your dealer or a qualified service
technician. Refer to the scheduled maintenance guide for the appropriate
intervals for changing the fuel filter.
Replace the fuel filter with an authorized Motorcraft part. The
customer warranty may be void for any damage to the fuel system
if an authorized Motorcraft fuel filter is not used.
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 1,600 km (1,000
miles) of driving (engine break-in period). You will get a more accurate
measurement after 3,000 km–5,000 km (2,000 miles-3,000 miles).
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 theRefill capacities
section 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.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
250

3. The fuel cap may not have been securely tightened.
These temporary malfunctions can be corrected by filling the fuel tank
with good quality fuel and/or properly tightening the fuel cap. After three
driving cycles without these or any other temporary malfunctions
present, theCheck Engine/Service Engine Soonlight should turn off.
(A driving cycle consists of a cold engine startup followed by mixed
city/highway driving.) No additional vehicle service is required.
If theCheck Engine/Service Engine Soonlight remains on, have your
vehicle serviced at the first available opportunity.
Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If your“Check Engine/Service Engine
Soon”light is on, refer to the description in theWarning lights and
chimessection of theInstrument clusterchapter. Your vehicle may not
pass the I/M test with the“Check Engine/Service Engine Soon”light on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a“not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•First, at least 10 minutes of driving on an expressway or highway.
•Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
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FluidFord Part
NameApplication Capacity
Engine oil
(includes filter
change)-Diesel
engineRefer to your 6.0L Diesel Supplement
Fuel tank N/A Mid-ship tank
(optional on
Chassis Cab)71.9L (19.0
gallons)
Right side
saddle mounted
tank (optional
on Chassis Cab)87.1L (23.0
gallons)
Short box 109.8L (29.0
gallons)
Long box 143.9L (38.0
gallons)
Aft axle 151.4L (40.0
gallons)
Power steering
fluidMotorcraft
MERCONAT FAll Fill to FULL
COLD range on
dipstick
Transfer case
fluidMotorcraft
MERCONAT F4x4 vehicles 1.9L (2.0
quarts)
Manual
transmission
fluidMotorcraft
MERCONAT F6-speed manual 5.5L (5.8
quarts)
5
Automatic
transmission
fluid
4
Motorcraft
MERCONAT F4R100
(4–speed)16.7L (17.7
quarts)6
Motorcraft
MERCONSP
AT FTorqShift
(5–speed)16.6L (17.5
quarts)
6(includes
remote filter
element change)
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateAll 4.0L (4.25
quarts)
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Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
279

recommendations ...................237
refill capacities ........................278
specifications ..................281, 284
Exhaust fumes ..........................128
F
Fail safe cooling ........................244
Fluid capacities .........................278
Foglamps .....................................41
Four-Wheel Drive vehicles .......143
description ..............................147
driving off road .......................149
electronic shift ................143, 147
indicator light .........................144
lever operated shift ................145
manual locking hubs ..............143
preparing to drive your
vehicle .....................................131
Fuel ............................................246
calculating fuel economy .......250
cap ...........................................248
capacity ...................................278
choosing the right fuel ...........248
comparisons with EPA fuel
economy estimates .................253
detergent in fuel .....................249
filling your vehicle with
fuel ...........................246, 248, 250
filter, specifications ........250, 277
fuel pump shut-off switch .....192
improving fuel economy ........250
octane rating ...................249, 284
quality ......................................249
running out of fuel .................249
safety information relating to
automotive fuels .....................246
Fuel pump shut-off switch .......192
Fuses ..................................193–194
G
Garage door opener ....................53Garage Door Opener
(see Homelink wireless
control system) ...........................62
Gas cap (see Fuel cap) ............248
Gas mileage
(see Fuel economy) .................250
Gauges .........................................15
transmission fluid
temperature gauge ...................19
GAWR
(Gross Axle Weight Rating)
calculating ...............................162
GVWR
(Gross Vehicle Weight Rating)
calculating ...............................162
H
Hazard flashers .........................192
Head restraints ...........................89
Headlamps ...................................40
aiming ........................................43
autolamp system .......................40
daytime running lights .............41
flash to pass ..............................42
high beam .................................42
replacing bulbs ...................45–46
turning on and off ....................40
Heating
heating and air conditioning
system .................................37–38
HomeLink universal
transceiver
(see Garage door opener) .........65
Homelink wireless control
system ..........................................62
Hood ..........................................233
I
Ignition ...............................124, 284
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
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