2003 FORD MUSTANG oil

Manual transmission vehicles
6. Lubricate the ball stud, clutch release lever and the input shaft with clean engine oil.
All vehicles 7. Raise the transmission and install the seven bolts.
8. Install the bolts. Klj . 3 ba
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21. Position the clip and install the bolt.
22. Connect the hose to the power steering reservoir.
23. Connect the lower radiator hose.
24. Connect the hose to the oil filter adapter. Klj . 7 ba
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25. Install the ground cable.
26. Connect the oil pressure sender.
27. Position the wiring harness and install the two nuts.
28. Position the wiring harness bracket and install the nut. Klj . 8 ba
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65. Install the hood-
to-body ground strap.
66. Connect the fuel spring lock coupling. For additional information, refer to Section 310 - 00 .
67. Install the air intake scoop bracket. For additional information, refer to Section 303 - 12 .
68. Connect the battery ground cable. For additional information, refer to Section 414 - 01 .
69. Fill the crankcase with clean engine oil and check that all other fluids are at the correct levels.
70. Fill and bleed the engine cooling system. For additional information, refer to Section 303 - 03A .
71. Fill and purge the power steering system. For additional information, refer to Section 211 - 00 .
72. Start the engine and check for leaks. Stop the engine and recheck the fluid levels.
73. Charge the A/C system. For additional information, refer to Section 412 - 00 . Klj . 18 ba
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DESCRIPTION AND OPERATION
Engine Cooling
CAUTION: Vehicle cooling systems are filled with Motorcraft Premium Gold Engine
Coolant VC -7-A (in Oregon VC -7-B) or equivalent meeting Ford specification WSS- M97B51-A1
(yellow color). Always fill the cooling system with the same coolant that is present in the
system. Do not mix coolant types.
NOTE: The addition of Motorcraft Cooling System Stop Leak Pellets, VC- 6, darkens Motorcraft
Premium Gold Engine Coolant from yellow to golden tan.
The 4.6L cooling system components include the:
zblock heater
z engine coolant temperature (ECT) sensor
z fan blade, fan motor and fan shroud assembly
z radiator
z pressure relief cap
z radiator draincock
z coolant pump
z coolant thermostat
z oil filter adapter
z radiator overflow hose
z upper radiator hose
z lower radiator hose
The radiator overflow hose circulates the coolant.
The coolant thermostat:
zcontrols the engine coolant temperature.
z allows for quicker engine warm- up.
The degas bottle/coolant expansion tank:
zprovides a location for service fill.
z contains coolant expansion and system pressurization.
z provides air separation during operation.
z replenishes the engine coolant to the system.
The engine coolant flows:
zfrom the lower radiator hose to the coolant pump.
z from the coolant pump to the engine block and the cylinder heads.
SECTION 303-
03A: Engine Cooling 2003 Mustang Workshop Manual Klj . 1 ba
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The 3.8L cooling system components include the:
zblock heater
z engine coolant temperature (ECT) sensor
z fan blade, fan motor and fan shroud assembly
z radiator
z radiator cap
z radiator draincock
z coolant pump
z coolant thermostat
z oil filter adapter
z radiator overflow hose
z coolant expansion tank
z upper radiator hose
z lower radiator hose
The fan blade draws air through the radiator to help cool the engine coolant.
The fan motor:
zoperates only when the ignition switch is in the RUN position.
z will not operate with the switch in the OFF position.
The engine coolant:
zflows through the radiator tubes and is cooled by passing air over the cooling fins.
z is then circulated from the radiator outlet tank through the coolant pump and into the cylinder
block to complete the circuit.
A closed coolant thermostat returns the engine coolant to the coolant pump. An open coolant
thermostat allows the engine coolant to flow to the radiator.
CAUTION: Engine coolant provides freeze protection, boil protection, cooling efficiency,
and corrosion protection to the engine and cooling components. In order to obtain these
protections, the engine coolant must be maintained at the correct concentration and fluid level
in the degas bottle (4.6L) or coolant expansion tank (3.8L).
When adding engine coolant, use a 50/50 mixture of engine coolant and deionized water.
To maintain the integrity of the coolant and the cooling system:
zNOTE: The addition of Motorcraft Cooling System Stop Leak Pellets, VC-6, darkens Motorcraft
Premium Gold Engine Coolant from yellow to golden tan.
Add Motorcraft Premium Gold Engine Coolant VC-7- A (in Oregon VC-7-B) or equivalent
meeting Ford specification WSS- M97B51-A1 (yellow color). Use the same coolant that is
present in the cooling system. Do not mix coolant types.
z Do not add/mix orange-colored Motorcraft Speciality Orange Engine Coolant VC- 2 or equivalent Klj . 2 ba
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DIAGNOSIS AND TESTING
Engine Cooling
Inspection and Verification
WARNING: Never remove the pressure relief cap while the engine is operating or when the
cooling system is hot. Failure to follow these instructions can result in damage to the cooling
system or engine or personal injury. To avoid having scalding hot coolant or steam blow out of
the degas bottle when removing the pressure relief cap, wait until the engine is cooled, then
wrap a thick cloth around the pressure relief cap and turn it slowly. Step back while the
pressure is released from the cooling system. When you are sure all the pressure has been
released, turn and remove the pressure relief cap (still with a cloth).
CAUTION: Check the coolant level, engine oil and transmission fluid, top off the coolant if
needed. If there is engine coolant in the engine oil or transmission fluid, the cause must be
corrected and oil/fluid changed or major component damage may occur.
1. Verify the customer's concern by operating the engine to duplicate the condition.
2. Inspect to determine if any of the following mechanical or electrical concerns apply.
SECTION 303-
03A: Engine Cooling 2003 Mustang Workshop Manual Special Tool(s)
Pressure Tester
014-
R1072 or equivalent 73III Automotive Meter
105-
R0057 or equivalent Worldwide Diagnostic System
(WDS)
418-
F224,
New Generation STAR (NGS)
Tester
418- F052, or equivalent scan
tool Battery/Anti-Freeze Tester
014- R1060 or equivalent Klj . 1 ba
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3. If the inspection reveals an obvious concern that can be readily identified, repair as necessary.
4.
CAUTION: Some vehicle cooling systems are filled with Motorcraft Premium Gold
Engine Coolant VC -7-A (in Oregon VC -7-B) or equivalent meeting Ford specification
WSS- M97B51- A1 (yellow color). Always fill the cooling system with the same coolant that
is present in the system. Do not mix coolant types.
NOTE: The addition of Motorcraft Cooling System Stop Leak Pellets, VC-6, darkens Motorcraft
Premium Gold Engine Coolant from yellow to golden tan.
Inspect the coolant condition. 1. Inspect the coolant color.
„If Motorcraft Premium Gold Engine Coolant (yellow color) VC-7- A (in Oregon VC-
7- B) or equivalent meeting Ford specification WSS-M97B51- A1 has a clear or
pale yellow color, this indicates higher water content than required.
„ Dark brown can indicate unauthorized stop leak may have been used. Use
Motorcraft Cooling System Stop Leak Pellets VC- 6 or equivalent meeting Ford
specification ESE-M99B37- 5 except as noted in ES-F6SE-19A511- AA only.
„ A light or reddish brown color indicates that rust may be present in the cooling
system. Flush the system and refill with the correct mixture of water and engine
coolant.
„ An iridescent sheen on top of the coolant can indicate a trace of oil is entering the
system. For additional information on engine diagnosis, refer to Section 303 - 00 .
„ A milky brown color may indicate that either engine oil or transmission fluid is
entering the cooling system. If transmission fluid is suspected, the cause may be a
leaky radiator. Pressure test the cooling system. For additional information, refer
to component tests in this section. If engine oil is suspected the cause of the leak
may be internal to the engine. For additional information, refer to Section 303 - 00 .
2. If the engine coolant appearance is acceptable, test the engine coolant freezing point
range with the battery and anti- freeze tester. The freezing point should be in the range -
40°C to - 20°C (-50°F to - 10°F). If the vehicle is driven in cold climates less than - 32°C (-
34°F), it may be necessary to increase the coolant concentration to get adequate freeze
protection.
„Maximum coolant concentration is 60% coolant/40% water.
„ Minimum coolant concentration is 40% coolant/60% water. 3. Adjust coolant range and level, if necessary: Visual Inspection Chart
Mechanical
z
Leaks
z Hoses
z Hose clamps
z Water gasket
z Head gaskets
z Intake manifold gasket
z Coolant pump
z Radiator
z Degas bottle/coolant expansion tank
z Heater core
z Fan/fan clutch
z Engine coolant temperature sensor (4.6L)
z Cylinder head temperature sensor (3.8L)
z Circuitry Klj . 2 ba
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