2003 FORD MUSTANG oil

z
System pressure is limited by an integral, internally- vented relief valve which directs the
bypassed oil back to the inlet side of the oil pump.
z Oil pump displacement has been selected to provide adequate volume to ensure correct oil
pressure both at hot idle and maximum speed.
z The relief valve calibration protects the system from excessive pressure during high viscosity
conditions.
z The relief valve is designed to provide adequate connecting rod bearing lubrication under high-
temperature and high- speed conditions.
Cooling System
The engine cooling system includes the following:
zradiator
z coolant pump
z the electric cooling fan motor and fan blade, activated by the variable control module
z the degas bottle, which aids in maintaining the correct volume of engine coolant
z thermostat
z upper radiator hose
z lower radiator hose
z heater coolant hoses
Drive Belt System
The 4.6L (4V) DOHC engine is equipped with a serpentine drive belt. To ensure maximum life, a
replacement drive belt should be of the same type as originally installed.
zThe accessories mounted on the front of the engine are belt- driven by the crankshaft.
z The serpentine drive belt is routed over each accessory pulley, driven by the crankshaft pulley
bolted to the crankshaft. For service procedures, including tensioning, refer to Section 303 - 05 . Klj . 3 ba
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9 — Bolt (24 req'd)
10 6A271 Camshaft
11 6529 Roller follower (8 req'd)
12 6C501 Hydraulic lash adjuster
13 6065 Bolt (20 req'd)
14 6A273 Camshaft
15 6B278 Camshaft bearing cap (2 req'd)
16 9448 Exhaust manifold gasket
17 9F485 EGR valve tube to manifold connector
18 W701706 Nut (8 req'd)
19 9431 Exhaust manifold
20 6C324 PCV tube
21 6A505 Valve cover
22 W708442 Stud bolt (4 req'd)
23 N808199 Bolt (16 req'd)
24 6766 Oil filler cap
25 12A366 Ignition coils
26 6P068 Ignition coil cover
27 N807309 Bolt (4 req'd)
28 6050 Cylinder head Klj . 8 ba
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9 6152 Piston ring (8 req'd)
10 6758 Crankcase vent tube and connector
11 6582 Valve cover
12 6051 Cylinder head gasket
13 W701706 Nut (8 req'd)
14 9430 Exhaust manifold
15 9448 Exhaust manifold gasket
16 W701681 Stud (8 req'd)
17 6049 Cylinder head
18 6C527 Spark plug gasket (8 req'd)
19 6200 Connecting rod (8 req'd)
20 6200 Connecting rod (8 req'd)
21 6161 Piston ring (8 req'd)
Item Part Number Description
1 8555 Coolant bypass tube
2 6750 Oil level indicator
3 6754 Oil level indicator tube
4 N806155 Bolt
5 6C358 Bolt (10 req'd)
6 6714 Oil bypass filter
7 N806156 Bolt (4 req'd)
8 9278 Oil pressure sender
9 6881 Oil filter adapter
10 6A636 Oil filter adapter gasket Klj . 12 ba
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11 N620482 Dowel
12 87836 Plug
Item Part Number Description
1 N807198 Dowel pin (2 req'd)
2 N807309 Bolt
3 N807959 Bolt
4 18663 Heater water hose
5 W500110 Bolt (2 req'd)
6 12A699 Knock sensor (2 req'd)
7 N807309 Bolt (2 req'd)
8 18696 Heater water hose
9 7120 Pilot bearing
10 6K318 Crankshaft rear retainer
11 N806155 Bolt (6 req'd)
12 6310 Crankshaft oil slinger
13 6375 Flexplate
14 N806168 Bolt (6 req'd)
15 — Flywheel
16 N808139 Bolt (8 req'd)
17 7550 Clutch disc
18 7563 Clutch pressure plate
19 N808969 Bolt (6 req'd)
20 6701 Crankshaft rear oil seal
21 N806007 Dowel pin (2 req'd) Klj . 13 ba
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9 6687 Oil pan baffle
10 N806180 Spacer
11 N605904 Bolt
12 6710 Oil pan gasket
13 6675 Oil pan
14 W701240 Bolt (16 req'd)
15 6622 Oil pump screen pickup and tube
16 N806155 Bolt (2 req'd)
17 N806180 Nut (2 req'd)
18 6345 Bolt (6 req'd)
19 6C360 Main bearing cap adjusting screw (10 req'd)
20 6A338 Crankshaft main bearing (4 req'd)
21 N806201 Woodruff key
22 6621 Oil pump
23 N806183 Bolt (4 req'd)
24 6333 Crankshaft main bearing
25 8501 Coolant pump Klj . 15 ba
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IN-
VEHICLE REPAIR
Valve Cover RH
Removal 1. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Drain the cooling system. For additional information, refer to Section 303 - 03A .
3. Recover the refrigerant. For additional information, refer to Section 412 - 00 .
4. Remove the air cleaner outlet tube. For additional information, refer to Section 303 - 12 .
5. Remove the RH ignition coil cover bolts and the cover.
6. Disconnect the ignition coil electrical connectors.
SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Material
Item Specification
Metal Surface Cleaner
F4AZ-
19A536- RA or equivalent WSE-
M5B392-
A Silicone Gasket and Sealant
F7AZ-
19554- EA or equivalent WSE-
M4G323-
A4 PAG Refrigerant Compressor
Oil
F7AZ-
19589- DA (Motorcraft
YN- 12-C) or equivalent WSH-
M1C231-
B Klj . 1 ba
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7. Remove the ignition coils.
8. Remove the throttle body. For additional information, refer to Section 303
- 04D .
9. Disconnect the fuel tube spring lock coupling. For additional information, refer to Section 310 -
00 .
10. Disconnect the heater hose.
11. Disconnect the A/C suction tube at the accumulator.
12. Disconnect and remove the A/C suction tube. Klj . 2 ba
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Installation
1. NOTE: If the valve cover is not secured within four minutes, the sealant must be removed and
the sealing area cleaned with metal surface cleaner. Allow to dry until there is no sign of
wetness, or four minutes, whichever is longer. Failure to follow this procedure can cause future
oil leakage.
Apply a bead of silicone gasket and sealant in two places where the engine front cover meets
the cylinder head.
2. Install the RH valve cover and finger tighten the bolts. 3. Tighten the RH valve cover bolts in the sequence shown. Klj . 5 ba
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