2003 FORD MUSTANG engine

SPECIFICATIONS
SECTION 308-
03B: Manual Transaxle/Transmission — TR3650 2003 Mustang Workshop Manual General Specifications
Item Specification
Lubricants and Sealants
Premium Long-
Life Grease
XG -1-C, K or T ESA-
M1C75- B Threadlock and Sealer
E0AZ-
19554- AA WSK-
M2G351- A5 Black Silicone Rubber
D6AZ-
19562- BA ESB-
M4G92- A Pipe Sealant with Teflon®
D8AZ-
19554- A ESR-
M18P7- A Motorcraft MERCON® Multi-Purpose (ATF)
Transmission Fluid
XT -2-QDX MERCON®
Synchronizer
Synchronizer blocking ring to conical face runout 0.5 mm (0.02 in)
End Play
Input shaft end play 0.02286 mm (0.0009 in) -
0.0508 mm
(0.002 in) Countershaft cluster gear end play 0.0 mm (0.0 in) -
0.076 mm (0.003 in) Output shaft end play 0.0012 mm (0.0005 in) -
0.100 mm (0.004
in)
Torque Specifications Description Nm lb-
ft lb-
in Gearshift lever to extension housing bolt 23 13 —
Gear shift lever to gear shift stub shaft bolt 37 27 —
OSS to case bolt 10 — 89
Reverse idler gear bolt 27 20 —
Fifth/reverse lockout bolt 20 15 —
Clutch housing to transmission main case bolt 31 23 —
Extension housing to transmission main case bolt 31 23 —
Drain plug 23 17 —
Reversing lamp switch 37 27 —
Fill plug 17 13 —
Transmission to engine bolt 75 55 —
Engine plate to transmission bolt 27 20 —
Crossmember to frame bolt 41 30 — Klj . 1 ba
22003 Mustang Workshop Manual
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DESCRIPTION AND OPERATION
Exhaust System
WARNING: The normal operating temperature of the exhaust system is very high. Never
attempt to repair any part of the system until it has cooled. Be especially careful when working
around the three way catalytic converter. The temperature of the three way catalytic converter
rises to a high level after only a few minutes of engine operation.
CAUTION: When repairing exhaust system or removing exhaust components, disconnect
all heated oxygen sensors (HO2S) at the wiring connectors to prevent damage to the heated
oxygen sensors and wiring harness. For additional information, refer to Section 303 - 14 for
location of the heated oxygen sensors.
The exhaust system:
zcontains dual three- way catalytic converters.
z has a crossover pipe downstream of the three way catalytic converters (4.6L).
z has two upstream heated oxygen sensors mounted before the three- way catalytic converters.
z the production muffler and tailpipe assembly is a one- piece design exhaust system.
Exhaust System — 3.8L Exhaust System — 4.6L (2V) SECTION 309-
00: Exhaust System 2003 Mustang Workshop Manual Item Part Number Description
1 5F250 Dual converter assembly
2 5D255 Insulator bracket assembly
3 5A246 Insulator bracket, (tailpipe)
4 5D255 Insulator bracket assembly
5 5232 Muffler Klj . 1 ba
32003 Mustang Workshop Manual
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SPECIFICATIONS
SECTION 310-
00: Fuel System — General Information 2003 Mustang Workshop Manual General Specifications
Item Specification
Fuel tank capacity 59.42 liters (15.7 gallons)
Key on, engine off fuel pressure 207-
345 kPa
(30-50 psi) Engine running fuel pressure (idle) 152-
255 kPa
(27-37 psi) Lubricants
SAE 5W-
20 Super Premium Synthetic Blend Motor Oil XO-5W20- QSP WSS-
M2C153- H Klj . 1 ba
12003 Mustang Workshop Manual
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GENERAL PROCEDURES
Pressure Relief
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or near any fuel- related components. Highly flammable mixtures are always present
and may be ignited, resulting in possible personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before servicing or disconnecting any of the fuel lines or fuel system components,
the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing
personal injury or a fire hazard.
1. Remove the Schrader valve cap and install the Fuel Pressure Gauge.
2. CAUTION: Open the manual valve slowly on the Fuel Pressure Gauge.
Relieve the fuel pressure. zPlace the fuel in a suitable container.
SECTION 310-
00: Fuel System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Fuel Pressure Gauge
310-
012 (T80L-9974- B) Klj . 1 ba
22003 Mustang Workshop Manual
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GENERAL PROCEDURES
Spring Lock Couplings
Disconnect
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or near any fuel- related components. Highly flammable mixtures are always present
and may be ignited, resulting in possible personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before servicing or disconnecting any of the fuel lines or fuel system components,
the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing
personal injury or a fire hazard.
1. Relieve the fuel system pressure. For additional information, refer to Pressure Relief in this
section.
2. Remove the fuel tube clip.
SECTION 310-
00: Fuel System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Disconnect Tool, Spring Lock
Coupling (3/8 inch yellow)
310-
D004 (D87L-9280- A) or
equivalent Disconnect Tool, Spring Lock
Coupling (1/2 inch green)
310-
D005 (D87L-9280- B) or
equivalent
Material Item Specification
SAE 5W-
20 Super Premium
Synthetic Blend Motor Oil
XO- 5W20- QSP or equivalent WSS-
M2C153-
H Klj . 1 ba
32003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2308/S3B~us~en~ ...

Connect
1. NOTE: Inspect and clean both the coupling ends. Lubricate the O- ring seals with clean engine
oil.
Connect the fitting.
zPull on the fitting to make sure it is fully engaged.
z Install the safety clip. Klj . 3 ba
32003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2308/S3B~us~en~ ...

GENERAL PROCEDURES
Fuel Line Fittings —
Push Connect
Disconnect WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or near any fuel- related components. Highly flammable mixtures are always present
and may be ignited, resulting in possible personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before servicing or disconnecting any of the fuel lines or fuel system components,
the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing
personal injury or a fire hazard.
1. Relieve the fuel system pressure. For additional information, refer to Pressure Relief in this
section.
2. Disconnect the safety clip from the male hose.
3. Install the Fuel Line Disconnect Set and push into the fitting.
SECTION 310-
00: Fuel System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Disconnect Tool, Spring Lock
Coupling
310-
S039 (T90T-9550- S)
Material Item Specification
SAE 5W-
20 Super Premium
Blend Motor Oil
XO- 5W20-QSP or equivalent WSS-
M2C153-
H Klj . 1 ba
32003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2308/S3B~us~en~ ...

4. Separate the fittings.
zClean and inspect the fittings for damage.
Connect 1. NOTE: Lubricate the tube end with clean engine oil to ease assembly.
Connect the fitting. zAlign the tube to the fitting and push until you hear a click.
2. Pull on the fitting to make sure it is fully engaged, then install the safety clip. Klj . 2 ba
32003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2308/S3B~us~en~ ...