2003 FORD F150 service

engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
CHECKING AND ADDING POWER STEERING FLUID
Check the power steering fluid.
Refer to the scheduled maintenance
guide for the service interval
schedules. If adding fluid is
necessary, use only MERCONAT F.
1. Start the engine and let it run until it reaches normal operating
temperature (the engine coolant temperature gauge indicator will be
near the center of the normal area between H and C).
2. While the engine idles, turn the steering wheel left and right several
times.
3. Turn the engine off.
4. Check the fluid level in the
reservoir. It should be between the
MIN and MAX lines. Do not add
fluid if the level is in this range.
5. If the fluid is low, add fluid in small amounts, continuously checking
the level until it reaches the range between the MIN and MAX lines. Be
sure to put the cap back on the reservoir.
MAX
MIN
MAX
MIN
Maintenance and Specifications
243

BRAKE FLUID RESERVOIR
The fluid level will drop slowly as
the brakes wear, and will rise when
the brake components are replaced.
Fluid levels below the“MAX”line
that do not trigger the brake system
warning lamp are within the normal
operating range, there is no need to
add fluid. If the fluid levels are outside of the normal operating range,
the performance of your brake system could be compromised, seek
service from your dealer immediately.
CLUTCH FLUID (IF EQUIPPED)
Check the fluid level. Refer to the scheduled maintenance guide for the
service interval schedules.
During normal operation, the fluid level in the clutch reservoir should
remain constant. If the fluid level drops, refill the fluid level to the step
in the reservoir.
Use only a DOT 3 brake fluid designed to meet Ford specification
ESA-M6C25–A. Refer toLubricant Specificationsin this chapter.
Brake fluid is toxic. If brake fluid contacts the eyes, flush eyes
with running water for 15 minutes. Seek medical attention if
irritation persists. If taken internally, drink water and induce vomiting.
Seek medical attention immediately.
Maintenance and Specifications
244

INFORMATION ABOUT UNIFORM TIRE QUALITY GRADING
New vehicles are fitted with tires
that have a rating on them called
Tire Quality Grades. The Quality
grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width. For
example:
•Treadwear 200 Traction AA Temperature A
These Tire Quality Grades are determined by standards that the United
States Department of Transportation has set.
Tire Quality Grades apply to new pneumatic tires for use on passenger
cars. They do not apply to deep tread, winter-type snow tires,
space-saver or temporary use spare tires, tires with nominal rim
diameters of 10 to 12 inches or limited production tires as defined in
Title 49 Code of Federal Regulations Part 575.104(c)(2).
U.S. Department of Transportation-Tire quality grades:The U.S.
Department of Transportation requires Ford to give you the following
information about tire grades exactly as the government has written it.
Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controlled conditions on a specified
government test course. For example, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the government course as a tire
graded 100. The relative performance of tires depends upon the actual
conditions of their use, however, and may depart significantly from the
norm due to variations in driving habits, service practices, and
differences in road characteristics and climates.
Traction AA A B C
The traction grades, from highest to lowest are AA, A, B, and C. The
grades represent the tire’s ability to stop on wet pavement as measured
under controlled conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have poor traction
performance.
Maintenance and Specifications
251

Component4.2L V6
engine4.6L V8
engine5.4L V8
engine5.4LSuperchargedV8 engine
Battery
(heavy
duty)BXT-65-650 BXT-65-650 BXT-65-650
BXT-65-650
Spark
plugs-
platinum
1
AGSF-34EE2AWSF-32P AGSF-22W AGSF-12E or
AGSF-12FM1
2, 3
1
Refer to Vehicle Emissions Control Information (VECI) decal for spark
plug gap information.
2If a spark plug is removed for inspection and replaced, it must be
reinstalled in the same cylinder. If a spark plug needs to be replaced, use
only spark plugs with the service number suffix letter as shown above.
3Use only AGSF-12FM1 spark plugs for replacement.
REFILL CAPACITIES
Fluid Ford Part Name Application 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 Engine
Coolant
(green-colored)or
Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)4.2L V6
engine19.0L (20.1 quarts)
4.6L V8
engine19.5L (20.6 quarts)
5.4L V8
enginer22.6L (23.9 quarts)
Intercooler
coolant
1Motorcraft
Premium Engine
Coolant
(green-colored)or
Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)5.4L
Supercharged
V8 engine4.0L (4.2 quarts)
Maintenance and Specifications
256

Fluid Ford Part Name Application Capacity
Rear axle5Motorcraft SAE
75W-140 Synthetic
Rear Axle
Lubricant10.25 inch
axle3.3L (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
MERCONand MERCONV. These dual usage fluids are not to be used
in an automatic transmission that requires use of the MERCONtype
fluid. However, these dual usage fluids may be used in transmissions that
require the MERCONV type fluid.
MERCONand MERCONV type fluids are not interchangeable.
DO NOT mix MERCONand MERCONV. Use of a transmission
fluid that indicates dual usage (MERCONand MERCONV) in
an automatic transmission application requiring MERCONmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
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.
Maintenance and Specifications
258

Add 118 ml (4 oz.) of Additive Friction Modifier XL-3 or equivalent
meeting Ford specification EST-M2C118–A, 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-140 Synthetic Rear Axle Lubricant and 236 ml (8 oz.) of Additive
Friction Modifier XL-3 or equivalent meeting Ford Specification
EST-M2C118-A.
LUBRICANT SPECIFICATIONS
ItemFord part
name or
equivalentFord part
numberFord
specification
Front axle
(4X4)Motorcraft SAE
75W-90
Premium 4x4
Front Axle
LubricantXY-75W90-TQL WSP-M2C201-A
Rear axleMotorcraft SAE
75W-140 High
Performance
Synthetic Rear
Axle Lube
1
XY-75W140–QL WSL-M2C192-A
Brake fluid and
clutch fluidMotorcraft High
Performance
DOT 3 Motor
Vehicle Brake
FluidPM-1 ESA-M6C25-A
and DOT 3
Maintenance and Specifications
259

ItemFord part
name or
equivalentFord part
numberFord
specification
Automatic
transmission
(4R100)
2
Motorcraft
MERCONAT FXT-2-QDX MERCON
Automatic
transmission
(4R70W)
2
Motorcraft
MERCONV
AT FXT-5-QM
MERCONV
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateZC-32–A WSB-M8B16–A2
1Add 118 ml (4 oz) of Additive Friction Modifier XL-3 or equivalent
meeting Ford specification EST-M2C118-A for complete refill of
Traction-Lok axles. Add 236 ml (8 oz.) of Additive Friction Modifier XL-3
or equivalent meeting Ford specification EST-M2C118-A for complete
refill of 10.25 and 10.5 inch Traction-Lok axles.
2Ensure 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
MERCONand MERCONV. These dual usage fluids are not to be used
in an automatic transmission that requires use of the MERCONtype
fluid. However, these dual usage fluids may be used in transmissions that
require the MERCONV type fluid.
MERCONand MERCONV type fluids are not interchangeable.
DO NOT mix MERCONand MERCONV. Use of a transmission
fluid that indicates dual usage (MERCONand MERCONV) in
an automatic transmission application requiring MERCONmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
Maintenance and Specifications
261

1. World manufacturer identifier
2. Brake type and gross vehicle
weight rating (GVWR)
3. Vehicle line, series, body type
4. Engine type
5. Check digit
6. Model year
7. Assembly plant
8. Production sequence number
Engine number
The engine number (the last eight numbers of the vehicle identification
number) is stamped on the engine block and transmission.
Harley-Davidson serialization plate
The Harley-Davidson Edition contains a serialization plate that is unique
and custom made for each Harley-Davidson vehicle. The serialization
plate contains the model year, vehicle identification number and build
sequence number. This information is added to the plate at the time of
vehicle build. Since plate is custom made, it isnot a serviceable part.
Maintenance and Specifications
268