cooling FORD MUSTANG 2003 Repair Manual

19. Install the crankshaft front oil seal. For additional information, refer to
Crankshaft Front Oil Seal in this section.
20. Position the cooling fan and shroud in the installed position.
21. Install the RH cooling fan bolt.
22. Install the LH cooling fan bolt.
23. Attach the cooling fan wiring harness to the fan shroud. Klj . 16 ba
212003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

24. Connect the cooling fan electrical connector.
25. Connect the lower radiator hose to the bypass tube.
26. Connect the upper radiator hose to the bypass tube.
27. Install the degas bottle and the nuts. Klj . 17 ba
212003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

IN-
VEHICLE REPAIR
Oil Filter Adapter
Removal 1. Drain the cooling system. For additional information, refer to Section 303 - 03A .
2. Disconnect the lower radiator hose.
3. Raise the vehicle. For additional information, refer to Section 100 - 02 .
4. Drain the engine oil.
5. Remove the oil filter adapter. 1. Remove the oil filter.
2. Remove the bolts.
3. Remove the oil filter adapter.
4. Remove the gasket.
SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

9. Disconnect the electrical connector.
10. Drain the engine cooling system. For additional information, refer to Section 303 - 03A .
11. Disconnect the fuel tube spring lock coupling. For additional information, refer to Section 310 -
00 .
12. Remove the upper radiator hose (8260).
13. Disconnect the throttle cable, and the speed control cable, and remove the throttle return spring. Klj . 3 ba
192003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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
182003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

SPECIFICATIONS
SECTION 303-
03A: Engine Cooling 2003 Mustang Workshop Manual General Specifications
Item Specification
Cooling System Capacity 15.2 L (4.0 gal)
Coolant Type
Motorcraft Premium Gold Engine Coolant VC-7-
A in
(Oregon VC -7-B) (yellow color) WSS-
M97B51- A1 Other Chemicals
Motorcraft Premium Cooling System Flush VC-
1 ESR-
M14P7-A Premium Long Life Grease XG-1-
C ESA-
M1C75- B Cooling System Stop Leak Pellets
VC-
6 ESE-
M99B37- B5 except as noted in ES-
F65E-19A511- AA Gasket Adhesive TA-
6 WSS-
M2G408- A Cooling System Pressure Test Specifications 138 kPa (20 psi)
Radiator Cap Pressure Test Specifications 110 kPa (16 psi)
Thermostat Opening Temperatures
Starts to open (4.6L 2V) 87-
93°C (192- 199°F) Starts to open (3.8L) 86.7-
90.6°C (189- 196°F) Starts to open (Cobra) 80-
83°C (175- 182°F) Fully open 104°C (219°F)
Torque Specifications Description Nm lb-
ft lb-
in Accelerator cable bracket bolts 10 — 89
Cylinder block drain plug 20 15 —
Exhaust manifold to EGR valve tube nut 35 26 —
Fan shroud bolts 10 — 89
Fan motor bolts 10 — 89
Degas bottle nuts 10 — 89
Coolant expansion tank bracket bolts 10 — 89
Radiator support bracket bolts 30 22 —
Transmission fluid cooler fittings 30 22 —
Coolant outlet connection bolts (3.8L) 10 — 89
Bypass tube bracket bolts (3.8L) 10 — 89
Bypass tube bolts (4.6L) 10 — 89
Bypass tube nuts (Supercharged engine) 25 18 —
Coolant hose mounting bolt 25 18 — Klj . 1 ba
22003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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
32003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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
32003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

meeting Ford specification WSS-
M97B44-D. Mixing coolants may degrade the coolant's
corrosion protection.
z Do not add alcohol, methanol, or brine, or any engine coolants mixed with alcohol or methanol
antifreeze. These can cause engine damage from overheating or freezing.
z Do not mix with recycled coolant unless it meets the requirements of Ford specification WSS-
M97B51- A1. Not all coolant recycling processes meet these Ford specifications. Use of such
coolants can harm the engine and cooling system components.
The coolant temperature sensor (4.6L) or cylinder head temperature sensor (3.8L) provides a signal to
the temperature gauge.
The optional block heater:
zelectrical heating element is installed in the core plug opening.
„uses a standard 110V electrical supply
z keeps the engine coolant warm during cold weather. Klj . 3 ba
32003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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
102003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...