2003 FORD MUSTANG check engine

Positions 5 through 7 indicate vehicle line, series and body type.
zP40 — Two-door coupe
z P42 — Two-door coupe, GT (Mach One available in GT Coupe only)
z P44 — Two-door convertible
z P45 — Two-door convertible, GT
z P48 — Two-door coupe, Cobra
z P49 — Two-door convertible, Cobra
Engine Code
The eighth VIN position is the engine displacement and number of cylinders code.
z4 — 3.8L, OHV, EFI, six cylinder
z R — 4.6L, DOHC, EFI, eight cylinder (Mach One)
z X — 4.6L, SOHC, EFI, eight cylinder
z Y— 4.6L, DOHC, S/C, EFI, eight cylinder (Cobra) Computer Generated Check Digit Klj . 3 ba
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z
Change engine oil and install a new oil filter, lube front lower control arm and steering linkage
ball joints with zerk fittings (if equipped) every 4,800 km (3,000 miles) or 3 months.
z Inspect brake system and check battery electrolyte level (Patrol cars) every 8,000 km (5,000
miles).
z Install a new fuel filter every 24,000 km (15,000 miles).
z Change automatic transmission fluid, lubricate 4x2 wheel bearings, install new grease seals and
adjust bearings every 48,000 km (30,000 miles).
z Install new spark plugs and change transfer case fluid every 96,000 km (60,000 miles).
z Install a new cabin air filter as required.
When operating in dusty conditions such as unpaved or dusty roads:
zChange engine oil and install a new oil filter every 4,800 km (3,000 miles) or 3 months.
z Install a new fuel filter every 24,000 km (15,000 miles).
z Change automatic transmission fluid every 48,000 km (30,000 miles).
z Change transfer case fluid every 96,000 km (60,000 miles).
z Install a new engine air filter as required.
z Install a new cabin air filter as required.
When operating in off- road conditions:
z Change automatic transmission fluid every 48,000 km (30,000 miles).
z Change transfer case fluid every 96,000 km (60,000 miles).
z Install a new cabin air filter as required.
z Inspect and lubricate U- joints.
z Inspect and lubricate steering linkage ball joints with zerk fittings.
Checks and Services
Certain basic maintenance checks and inspections should be carried out at specified intervals. Any
recognized adverse condition should be corrected as soon as possible.
Maximum Oil Change Interval (Normal Schedule) z8,000 km (5,000 miles) or 6 months, whichever occurs first.
Maximum Oil Change Interval (Special Operating Conditions)
z4,800 km (3,000 miles) or 3 months.
Monthly Checks
Check each of the following items every month:
zAll interior and exterior lights.
z Tires for wear and correct air pressure. Klj . 2 ba
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z
Engine oil fluid level.
z Windshield washer solvent fluid level.
z Check and drain fuel/water separator.
Six Month Checks
Check each of the following items at least every six months:
zLap/shoulder belts and seat latches for wear and function.
z Spare tire air pressure.
z Power steering fluid level.
z Parking brake for correct operation.
z Safety warning lamps (brake, ABS, air bag, safety belt) for correct operation.
z Coolant system fluid level and correct strength.
z Battery connections. Clean if necessary.
z Clutch fluid level, if equipped.
z Windshield washer spray, wiper operation, clean all wiper blades.
z Lubricate all hinges, latches and outside locks. Inspect for correct operation.
z Lubricate door rubber weatherstrips. Inspect for excessive wear.
z Clean body and door drain holes. Inspect for clogs and obstructions.
Special Checks (Mustang Only)
Carry out the following check every 8,000 km (5,000 miles):
zAdjust clutch by lifting pedal (manual transmission Mustang only, as described in owner guide).
Normal Schedule
The following checks or procedures should be carried out for all cars, minivans, light trucks, sport
utilities, vans, 4x4s, natural gas and propane vehicles.
8,000 Km (5,000 Miles) zChange engine oil and install a new oil filter.
z Rotate tires and inspect for wear.
16,000 Km (10,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
24,000 Km (15,000 Miles)
zChange engine oil and install a new oil filter. Klj . 3 ba
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z
If equipped, inspect automatic transmission fluid level with dipstick.
z Inspect brake pads, shoes, rotors, drums, brake lines, hoses and parking brake system.
z Inspect wheel ends for end play and noise.
z Inspect engine cooling system and hoses.
z Inspect steering linkage, suspension and (if equipped) driveshaft and ball joints.
z Rotate tires and inspect for wear.
z If equipped, install a new cabin air filter.
32,000 Km (20,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
40,000 Km (25,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
z Drain coalescent fuel filter and replace filter (NGV).
48,000 Km (30,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect brake pads, shoes, rotors, drums, brake lines, hoses and parking brake system.
z Inspect wheel ends for end play and noise.
z Inspect engine cooling system and hoses.
z Inspect exhaust system and heat shields.
z Inspect steering linkage, suspension and (if equipped) driveshaft and ball joints.
z Rotate tires and inspect for wear.
z Install a new engine air filter.
z Install a new fuel filter. (See ADDITIONAL INFORMATION below.)
z If equipped, install a new cabin air filter.
z Change automatic transmission/transaxle fluid on all vehicles equipped with AX4S, 4F50N,
4R100, 4F27E. Inspect automatic transmission fluid level using dipstick on all other vehicles, if
equipped.
z If equipped, install new climate controlled seat filters (Navigator, Lincoln LS and Aviator).
ADDITIONAL INFORMATION: If vehicle is registered in California, the California Air Resources Board
(CARB) has determined that failure to install a new fuel filter at this interval will not nullify the emission
warranty or limit recall liability prior to completion of the vehicle's useful life. It is, however,
recommended that maintenance checks be carried out and recorded at the indicated intervals.
Natural gas and propane vehicles also require checking the fuel tanks and installing a new filter
(propane vehicles). 56,000 Km (35,000 Miles) Klj . 4 ba
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equipped.
z If equipped, install new climate controlled seat filters (Navigator, Lincoln LS and Aviator).
ADDITIONAL INFORMATION: If vehicle is registered in California, the California Air Resources Board
(CARB) has determined that failure to install a new fuel filter at this interval will not nullify the emission
warranty or limit recall liability prior to completion of the vehicle's useful life. It is, however,
recommended that maintenance checks be carried out and recorded at the indicated intervals.
Additional checks for natural gas and propane vehicles at this interval include inspecting fuel tanks, as
well as draining coalescent fuel filter and installing a new filter.
104,000 Km (65,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
112,000 Km (70,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
120,000 Km (75,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect automatic transmission fluid level using dipstick.
z Inspect brake pads, shoes, rotors, drums, brake lines, hoses and parking brake system.
z Inspect wheel ends for end play and noise.
z Inspect engine cooling system and hoses.
z Inspect steering linkage, suspension and (if equipped) driveshaft and ball joints.
z Rotate tires and inspect for wear.
z Install a new cabin air filter.
z Drain coalescent fuel filter and replace filter (NGV).
z Change green engine coolant, if equipped.
128,000 Km (80,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
136,000 Km (85,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
144,000 Km (90,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect brake pads, shoes, rotors, drums, brake lines, hoses and parking brake system. Klj . 6 ba
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z
If equipped, inspect automatic transmission fluid level with dipstick.
z Inspect brake pads, shoes, rotors, drums, brake lines, hoses and parking brake system.
z Inspect wheel ends for end play and noise.
z Inspect engine cooling system and hoses.
z Inspect steering linkage, suspension and (if equipped) driveshaft and ball joints.
z Rotate tires and inspect for wear.
z Install a new cabin air filter.
z If filled with green engine coolant, change coolant.
224,000 Km (140,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
232,000 Km (145,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect tires for wear. Rotation recommended for optimal tire life.
240,000 Km (150,000 Miles)
zChange engine oil and install a new oil filter.
z Inspect brake pads, shoes, rotors, drums, brake lines, hoses and parking brake system.
z Inspect wheel ends for end play and noise.
z Inspect engine cooling system and hoses.
z Inspect exhaust system and heat shields.
z Inspect steering linkage, suspension and (if equipped) driveshaft and ball joints.
z Rotate tires and inspect for wear.
z Install a new engine air filter.
z Install a new fuel filter. (See ADDITIONAL INFORMATION below.)
z If equipped, install a new cabin air filter.
z If filled with yellow engine coolant, change coolant or at 8 years, whichever comes first.
z Change automatic transmission/transaxle fluid and filter.
z Change rear axle lubricant on all rear wheel (RWD) vehicles.
z Install a new accessory drive belt(s) (if a new belt has not been installed within the last 100,000
miles).
z If equipped, install new climate controlled seat filters (Navigator, Lincoln LS and Aviator).
ADDITIONAL INFORMATION: If vehicle is registered in California, the California Air Resources Board
(CARB) has determined that failure to install a new fuel filter at this interval will not nullify the emission
warranty or limit recall liability prior to completion of the vehicle's useful life. It is, however
recommended that maintenance checks be carried out and recorded at the indicated intervals.
Additional checks for natural gas and propane vehicles include inspecting fuel tanks, as well as
draining and installing a new filter. Klj . 9 ba
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starting point.
Decibel
A unit of measurement, referring to sound pressure level, abbreviated dB.
Drive Engine Run-
Up (DERU) Test
The operation of the engine through the normal rpm range with the vehicle standing still, the brakes
applied and the transmission engaged. This test is used for noise and vibration checks.
Driveline Angles
The differences of alignment between the transmission output shaft, the driveshaft, and the rear axle
pinion centerline.
Driveshaft
The shaft that transmits power to the rear axle input shaft (pinion shaft). In a two- piece driveshaft, it is
the rearmost shaft.
Drivetrain
All power transmitting components from the engine to the wheels; includes the clutch or torque
converter, the transmission, the transfer case, the driveshaft, and the front or rear drive axle.
Drivetrain Damper
A weight attached to the engine, the transmission, the transfer case, or the axle. It is tuned by weight
and placement to absorb vibration.
Drone
A low frequency (100- 200 Hz) steady sound, like a freezer compressor. Also described as a moan.
Drumming
A cycling, low-frequency (20- 100 Hz), rhythmic noise often accompanied by a sensation of pressure on
the ear drums. Also described as a low rumble, boom, or rolling thunder. Dynamic Balance Klj . 5 ba
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„
Frequencies have a range of plus or minus 2. A reading of 10 Hz can be displayed as an
8 Hz through 12 Hz.
d. Place the vibration sensor on or near the suspect area outside the vehicle.
e. Continue the road test, driving the vehicle at the speed the symptom occurs, and take another reading.
f. Compare the readings.
„A match in frequency indicates the problem component or area.
„ An unmatched test could indicate the concern is caused by the engine, torque converter,
or engine accessory. Use the EVA in the rpm mode and check if concern is rpm related.
„ Example: A vibration is felt in the seat. Place the sensor on the console. Record the
readings. Place the vibration sensor on the rear axle. Compare the readings. If the
frequencies are the same, the axle is the problem component.
Vibrate Software®
Vibrate Software® ( Rotunda tool number 215- 00003) is a diagnostic aid which will assist in pinpointing
the source of unacceptable vibrations. The engine's crankshaft is the point of reference for vibration
diagnosis. Every rotating component will have an angular velocity that is faster, slower, or the same as
the engine's crankshaft. Vibrate Software® calculates the angular velocity of each component and
graphically represents these velocities on a computer screen and on a printed vibration worksheet.
The following steps outline how Vibrate Software® helps diagnose a vibration concern:
zEnter the vehicle information. Vibrate will do all the calculations and display a graph showing
tire, driveshaft and engine vibrations.
z Print a Vibration Worksheet graph. The printed graph is to be used during the road test.
z Road test the vehicle at the speed where the vibration is most noticeable. Record the vibration
frequency (rpm) and the engine rpm on the worksheet graph. The point on the graph where the
vibration frequency (rpm) reading and the engine rpm reading intersect indicates the specific
component group causing the concern.
„An EVA or equivalent tool capable of measuring vibration frequency and engine rpm will
be needed.
z Provide pictures of diagnostic procedures to aid in testing components.
Combination EngineEAR/ChassisEAR
An electronic listening device used to quickly identify noise and the location under the chassis while
the vehicle is being road tested. The ChassisEARs can identify the noise and location of
damaged/worn wheel bearings, CV joints, brakes, springs, axle bearings or driveshaft carrier bearings.
EngineEAR Basic Unit
An electronic listening device used to detect even the faintest noises. The EngineEARs can detect the
noise of damaged/worn bearings in generators, water pumps, A/C compressors and power steering
pumps. They are also used to identify noisy lifters, exhaust manifold leaks, chipped gear teeth and for
detecting wind noise. The EngineEAR has a sensing tip, amplifier, and headphones. The directional
sensing tip is used to listen to the various components. Point the sensing tip at the suspect component
and adjust the volume with the amplifier. Placing the tip in direct contact with a component will reveal
structure-borne noise and vibrations, generated by or passing through, the component. Various
volume levels can reveal different sounds.
Ultrasonic Leak Detector
The Ultrasonic Leak Detector is used to detect wind noises caused by leaks and gaps in areas where
there is weather- stripping or other sealing material. It is also used to identify A/C leaks, vacuum leaks Klj . 12 ba
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