2003 FORD MUSTANG warning light

REMOVAL AND INSTALLATION
Throttle Body
Removal
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 can ignite. Failure to follow these instructions can result in personal injury.
CAUTION: The throttle body bore and plate area have a special coating and cannot be
cleaned.
1. Remove the air intake scoop bracket. For additional information, refer to Section 303 - 12 .
2. Remove the air cleaner outlet tube. For additional information, refer to Section 303 - 12 .
3. Disconnect the throttle position (TP) sensor electrical connector.
4. Disconnect the accelerator controls. zDisconnect the accelerator cable.
z Disconnect the speed control cable.
z Disconnect the return spring.
5. NOTE: Discard the throttle body gasket after removing the throttle body.
Remove the throttle body. zRemove the four bolts.
SECTION 303-
04D: Fuel Charging and Controls — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Fuel Injectors
Removal
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 can ignite. Failure to follow these instructions can result in personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before working on or disconnecting any of the fuel lines or fuel system
components, the fuel system pressure must be relieved. Failure to follow these instructions
can result in personal injury.
1. Remove the supply manifold. For additional information, refer to Supply Manifold in this section.
2. Remove the eight fuel injectors from the supply manifold.
Installation CAUTION: The retaining clip must be in the upper groove on the injector or the injector
can become loose.
1. NOTE: Inspect the two O- rings from each fuel injector. Install new O- rings as needed.
NOTE: Lubricate the new O- rings with clean engine oil.
To install, reverse the removal procedure.
SECTION 303-
04D: Fuel Charging and Controls — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Wiring Harness
Removal
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 can ignite. Failure to follow these instructions can result in personal injury.
1. With the vehicle in neutral, position it on a hoist. For additional information, refer to Section 100 -
02 .
2. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
3. Remove the upper intake manifold. For additional information, refer to Section 303 - 01D .
4. Disconnect the following connectors: zThe 42 pin engine bulkhead electrical connector.
z The 16 pin electrical connector.
5. Separate the wiring harness from the dash panel.
6. Remove the RH ignition coil cover. zRemove the bolts.
z Remove the coil cover.
SECTION 303-
04D: Fuel Charging and Controls — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Klj . 1 ba
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REMOVAL AND INSTALLATION
Supply Manifold
Removal
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 can ignite. Failure to follow these instructions can result in personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before working on or disconnecting any of the fuel lines or fuel system
components, the fuel system pressure must be relieved. Failure to follow these instructions
can result in personal injury.
1. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Remove the upper intake manifold. For additional information, refer to Section 303 - 01D .
3. Relieve the fuel pressure. For additional information, refer to Section 310 - 00 .
4. Disconnect the fuel line. For additional information, refer to Section 310 - 00 .
5. Position the wiring harness aside. zDisconnect the RH fuel injector electrical connectors.
z Separate the harness from the RH fuel supply manifold stud bolt.
6. Disconnect the fuel pressure sensor. zDisconnect the electrical connector.
z Disconnect the vacuum hose.
SECTION 303-
04D: Fuel Charging and Controls — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Klj . 1 ba
32003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Evaporative Emission Canister
Removal and Installation
1. WARNING: The evaporative emission system contains fuel vapor and condensed
fuel vapor. Although not in large quantities, it still presents the danger of explosion or
fire. Disconnect the battery ground cable from the battery to minimize the possibility of
an electrical spark occurring, possibly causing a fire or explosion if fuel vapor or liquid
fuel is present in the area. Failure to follow these instructions may result in personal
injury.
Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
3. Remove the left rear wheel. For additional information, refer to Section 204 - 04 .
4. WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or around any fuel- related component. Highly flammable mixtures are always
present and may be ignited. Failure to follow these instructions may result in personal
injury.
Disconnect the canister vent solenoid hose assembly.
5. Disconnect the connector.
6. Disconnect the evaporative emission (EVAP) canister purge outlet tube.
SECTION 303-
13: Evaporative Emissions 2003 Mustang Workshop Manual Klj . 1 ba
32003 Mustang Workshop Manual
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7.
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or around any fuel- related component. Highly flammable mixtures are always
present and may be ignited. Failure to follow these instructions may result in personal
injury.
Disconnect the evaporative emission (EVAP) canister purge outlet tube.
8. Disconnect the EVAP return tube.
9. Remove the nuts and the EVAP canister purge valve. Klj . 2 ba
32003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Fuel Pressure Sensor
Removal
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. Failure to follow these instructions may result in personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before working on or disconnecting any of the fuel lines or fuel system
components, the fuel system pressure must be relieved. Failure to follow these instructions
may result in personal injury.
Mach I
1. Remove the air intake scoop. For additional information, refer to Section 303 - 12 .
All engines 2. Relieve the fuel pressure. For additional information, refer to Section 310 - 00 .
3. NOTE: The 4.6L (4V) Cobra engine is shown, the other engines are similar.
Disconnect the connector and the vacuum line. 4. Remove the bolts and the sensor. SECTION 303-
14: Electronic Engine Controls 2003 Mustang Workshop Manual Material
Item Specification
Super Premium SAE 5W-20
Motor Oil
XO- 5W20- DSP or equivalent WSS-
M2C914-
A Klj . 1 ba
22003 Mustang Workshop Manual
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68. Lightly lubricate the converter hub with clean automatic transmission fluid.
69.
WARNING: The torque converter can fall out if the transmission is tipped.
CAUTION: Make sure the converter hub is fully engaged in the front pump support
and gear and rotates freely. Do not damage the hub seal.
CAUTION: If the torque converter slides out, the hub seal may be damaged.
Using the special tools, install the torque converter.
70. Lubricate the torque converter pilot hub with multi- purpose grease. Klj . 24 ba
252003 Mustang Workshop Manual
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