FORD MUSTANG 2003 Workshop Manual

REMOVAL AND INSTALLATION
Dual Converter H-
Pipe —4.6L (2V and 4V)
Removal
NOTE: The RH and LH catalytic converters are serviced separately.
1. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
2. CAUTION: When repairing exhaust system or removing the exhaust components,
disconnect all heated oxygen sensors (HO2S) (9F472) at the wiring connectors to prevent
damage to the heated oxygen sensors and wiring harness.
Disconnect the downstream RH and LH heated oxygen sensor connectors (9F472).
3. Disconnect the two upstream RH and LH catalyst monitor sensor connectors.
4. Remove the dual converter assembly nuts. (RH shown, LH similar.)
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5. Remove the RH exhaust manifold flange nuts.
6. Remove the LH exhaust manifold flange nuts.
7. Remove the dual converter H-
pipe.
8. If necessary, use the center of the LH flange as a baseline, measure 67 mm (2.68 in) and cut the cross- over pipe.
9. If necessary, use the center of the RH flange as a baseline, measure 83.9 mm (3.35 in) and cut the cross- over pipe. Klj . 2 ba
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Installation
1. Position the LH and RH dual converter pipe. zSnug the converter- to-manifold nuts.
2. Position the muffler and install the dual converter assembly nuts. (RH shown, LH similar.)
3. If necessary, position the sleeve and clamps. Tighten the clamps to 55 Nm (41 lb- ft).
4. Tighten the four converter- to-manifold nuts.
5. Connect the two upstream RH and LH heated oxygen sensor connectors.
6. Connect the two downstream RH and LH catalyst monitor sensor connectors. Klj . 3 ba
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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
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DESCRIPTION AND OPERATION
Fuel System
Component Location
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. SECTION 310-
00: Fuel System — General Information 2003 Mustang Workshop Manual Item Part Number Description
1 9341 Inertia fuel shutoff switch
2 9F593 Fuel injector
3 9155 Fuel filter
4 9002 Fuel tank
5 9H307 Fuel pump module and flange assembly Klj . 1 ba
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The vehicle:
zuses a returnless fuel system.
z is equipped with a multiport fuel injection (MFI) system.
z uses separately controlled fuel injectors (9F593) for each cylinder. The fuel injectors are
mounted to the intake manifold.
z fuel injectors are supplied with pressurized fuel from the fuel pump (9350) through the fuel
injection supply manifold (9D280).
z fuel injection supply manifold is controlled by the electronic fuel delivery module which is
enabled by the powertrain control module (PCM) (12A650). Klj . 2 ba
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DIAGNOSIS AND TESTING
Fuel System
Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
SECTION 310-
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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
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