2004 FORD F150 fuel cap

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.
Repairs to correct the effects of using a fuel for which your vehicle was
not designed may not be covered by your warranty.
Octane recommendations
Your vehicle is designed to use
ªRegularº unleaded gasoline with
pump (R+M)/2 octane rating of 87.
We do not recommend the use of
gasolines labeled as ªRegularº that
are sold with octane ratings of 86 or lower in high altitude areas.
Do not be concerned if your engine sometimes knocks lightly. However, if
it knocks heavily under most driving conditions while you are using fuel
with the recommended octane rating, see your dealer or a qualified
service technician to prevent any engine damage.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems during a cold start, try a different brand of unleaded gasoline.
ªPremiumº unleaded gasoline is not recommended for vehicles designed
to use ªRegularº unleaded gasoline because it may cause these problems
to become more pronounced. If the problems persist, see your dealer or
a qualified service technician.
It should not be necessary to add any aftermarket products to your fuel
tank if you continue to use high quality fuel of the recommended octane
rating. Aftermarket products could cause damage to the fuel system.
Repairs to correct the effects of using an aftermarket product in your
fuel may not be covered by your warranty.
87(R+M)/2 METHOD
Maintenance and Specifications
240

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.
For consistent results when filling the fuel tank:
²Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading may result if the engine is left running.
²Use the same filling rate setting (low Ð medium Ð high) each time
the tank is filled.
²Allow no more than 3 automatic click-offs when filling.
²Always use fuel with the recommended octane rating.
²Use a known quality gasoline, preferably a national brand.
²Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
²Have 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 kilometers or miles).
2. Each time you fill the tank, record the amount of fuel added (in liters
or gallons).
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.
Maintenance and Specifications
242

permitted to intentionally remove an emission control device or prevent
it from working. Information about your vehicle's emission system is on
the Vehicle Emission Control Information Decal located on or near the
engine. This decal identifies engine displacement and gives some tune up
specifications.
Please consult yourWarranty Guidefor complete emission warranty
information.
On board diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine's
emission control system. This system is commonly known as the On
Board Diagnostics System (OBD-II). This OBD-II system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD-II system also assists the
service technician in properly servicing your vehicle. When theCheck
Engine/Service Engine Soonlight illuminates, the OBD-II system has
detected a malfunction. Temporary malfunctions may cause yourCheck
Engine/Service Engine Soonlight to illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the fuel.
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 ªService Engine Soonº 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 ªService Engine Soonº light on.
If the vehicle's powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a ªnot ready for I/M testº
Maintenance and Specifications
246

When replacing full size tires, never mix radial bias-belted, or
bias-type tires. Use only the tire sizes that are listed on the
Certification Label. Make sure that all tires are the same size, speed
rating, and load-carrying capacity. Use only the tire combinations
recommended on the label. If you do not follow these precautions,
your vehicle handling may be affected which can lead to loss of vehicle
control, vehicle rollover and/or personal injury.
Make sure that all replacement tires are of the same size, type,
speed rating, load-carrying capacity and tread design (e.g., ªAll
Terrainº, ªTouringº, etc.), as originally offered by Ford.
Do not replace your tires with ªhigh performanceº tires or larger
size tires.
Failure to follow these precautions may adversely affect the
handling of the vehicle, and increase the risk of loss of vehicle
control, vehicle rollover and/or personal injury.
Tires that are larger or smaller than your vehicle's original tires may also
affect the accuracy of your speedometer.
SNOW TIRES AND CHAINS
Snow tires must be the same size and grade as the tires you
currently have on your vehicle.
The tires on your vehicle have all weather treads to provide traction in
rain and snow. However, in some climates, you may need to use snow
tires and chains. If you need to use chains, it is recommended that steel
wheels (of the same size and specifications) be used, as chains may chip
aluminum wheels.
Follow these guidelines when using snow tires and chains:
²Use only SAE Class S chains.
²Install chains securely, verifying that the chains do not touch any
wiring, brake lines or fuel lines.
²Drive cautiously. If you hear the chains rub or bang against your
vehicle, stop and re-tighten the chains. If this does not work, remove
the chains to prevent damage to your vehicle.
Maintenance and Specifications
256

²If possible, avoid fully loading your vehicle.
²Remove the tire chains when they are no longer needed. Do not use
tire chains on dry roads.
²The suspension insulation and bumpers will help prevent vehicle
damage. Do not remove these components from your vehicle when
using snow tires and chains.
MOTORCRAFT PART NUMBERS
Component 4.6L V8 engine 5.4L V8 engine
Air filter element FA-1632 FA-1754
Battery BTX-65-650 BTX-65-650
Fuel filter FG-986B FG-986B
Oil filter FL-820-S FL-820-S
PCV valve EV-266 N/A
Spark plugs
1AGSF-32PM PZT-2FE-F42
1
Refer to Vehicle Emissions Control Information (VECI) decal for spark
plug gap information.
2The 5.4L 3V spark plug gap CANNOT be adjusted.
REFILL CAPACITIES
Fluid Ford Part
NameApplication Capacity
Brake fluid
and clutch
fluidMotorcraft High
Performance
DOT 3 Motor
Vehicle Brake
FluidAll Fill to line or step
(for clutch) on
reservoir
Engine coolant
1Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)4.6L V8 engine 18.7L (19.8 quarts)
5.4L V8 engine 19.5L (20.6 quarts)
Maintenance and Specifications
257

Fluid Ford Part
NameApplication Capacity
Engine oil
(includes filter
change)
8
Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil (US)
Motorcraft SAE
5W-20 Super
Premium Motor
Oil (Canada)4.6L engine 5.7L (6.0 quarts)
5.4L engine 6.6L (7.0 quarts)
Fuel tank N/A Reg. Cab 6.5'
box/SuperCab 5.5'
box98.4L (26.0 gallons)
SuperCrew 113.6L (30 gallons)
Reg. Cab 8'
box/SuperCab 6.5'
box/SuperCab 8'
box102.1L (27 gallons)
Standard
135.1L (35.7
gallons) Optional
Power steering
fluidMotorcraft
MERCONtAT FAll Fill to between MIN
and MAX lines on
reservoir
Transfer case
fluidMotorcraft
MERCONtAT F4x4 vehicles 1.9L (2.0 quarts)
2
Transmission
fluid3Motorcraft
MERCONtV
AT F4R70/75 E-W 13.2L (13.9 quarts)4
Front axle Motorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle Lubricant4x4 vehicles 2.0L (3.7 pints)
Maintenance and Specifications
258

Fluid Ford Part
NameApplication Capacity
Rear axle
5Motorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle Lubricant8.8/9.75 inch axle 2.6L (5.5 pints)6
Rear axle5Motorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle Lubricant10.25 inch axle 3.3L (6.9 pints)7
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateAll 4.0L (4.25 quarts)
1Add the coolant type originally equipped in your vehicle.2Service refill capacity is determined by filling the transfer case to the
bottom of the filler hole with the vehicle on a level surface.
3Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. Check the container to verify the fluid being added is of the
correct type. Refer to your scheduled maintenance guide to determine
the correct service interval.
Some transmission fluids may be labeled as dual usage, such as
MERCONtand MERCONtV. These dual usage fluids are not to be used
in an automatic transmission that requires use of the MERCONttype
fluid. However, these dual usage fluids may be used in transmissions that
require the MERCONtV type fluid.
MERCONtand MERCONtV type fluids are not interchangeable.
DO NOT mix MERCONtand MERCONtV. Use of a transmission
fluid that indicates dual usage (MERCONtand MERCONtV) in
an automatic transmission application requiring MERCONtmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
Maintenance and Specifications
259

4Approximate dry fill capacity including transmission fluid cooling
system, actual refill capacities will vary based on vehicle application and
transmission fluid cooling system (i.e. coolers size, cooling lines. auxiliary
cooler capacities). The amount of transmission fluid and fluid level
should be set by the indication on the dipstick's normal operating range.
5Your vehicle's rear axle is filled with a synthetic rear axle lubricant and
is considered lubricated for life. These lubricants do not need to be
checked or changed unless a leak is suspected, service is required or the
axle assembly has been submerged in water. The axle lubricant should
be changed any time the rear axle has been submerged in water.
6Service refill capacity is determined by filling the axle to 6-14 mm
(1/4-9/16 inch) below the bottom of the filler hole with the vehicle on a
level surface.
Add 118 ml (4 oz.) of FEHP Friction Modifier, XL-7 or equivalent, for
complete fill of 8.8 inch and 9.75 inch Traction-Lok axles.
7Service refill capacity is determined by filling the axle to the bottom of
the filler hole with the vehicle on a level surface.
For 10.25 inch Traction-Lok axles, use 3.1L (6.5 pints) of Motorcraft SAE
75W-90 Fuel Efficient High Performance Synthetic Rear Axle Lubricant
and 118 ml (4 oz.) of FEHP Friction Modifier XL-7 or equivalent.
8Use of synthetic or synthetic blend motor oil is not mandatory. Engine
oil need only meet the requirements of Ford specification
WSS-M2C153±H and the API Certification mark.
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260