FORD MUSTANG 2003 Workshop Manual

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 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 pressure must be relieved. Failure to follow these instructions may result
in personal injury.
1. Relieve the fuel pressure. For additional information, refer to Section 310 - 00 .
2. Remove the supply manifold. For additional information, refer to Fuel Injection Supply Manifold in this section.
3. Remove the fuel injectors from the supply manifold.
Installation 1. NOTE: Lubricate the new O- rings with Super Premium SAE 10W-30, XO-10W30- DSP or
equivalent meeting Ford specification WSS- M2C153-G, to aid installation.
Inspect the two O- rings on each fuel injector. Install new O- rings if necessary.
2. Install the fuel injectors onto the supply manifold.
SECTION 303-
04B: Fuel Charging and Controls — 4.6L (2V) 2003 Mustang Workshop Manual Klj . 1 ba
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3. Install the fuel supply manifold. Klj . 2 ba
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REMOVAL AND INSTALLATION
Fuel Charging 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 may be ignited. Failure to follow these instructions may result in personal injury.
1. Disconnect the battery ground cable (14301). For additional information, refer to Section 414 -
01 .
2. Disconnect the air cleaner outlet tube. For additional information, refer to Section 303 - 12 .
3. Disconnect the 42 pin connector.
4. Separate the wiring harness retainers from the dash panel.
5. Disconnect the following connectors: zThrottle position (TP) sensor
z Idle air control (IAC) valve
SECTION 303-
04B: Fuel Charging and Controls — 4.6L (2V) 2003 Mustang Workshop Manual Klj . 1 ba
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6. Disconnect the following connections:
zFour ignition coils
z Four fuel injectors
z Positive crankcase ventilation (PCV) hose from valve cover.
7. Disconnect the following connectors: zRH radio ignition interference capacitor
z Engine coolant temperature (ECT) sensor 8. Disconnect the 16 pin connector Klj . 2 ba
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9. Raise the vehicle. For additional information, refer to
Section 100 - 02 .
10. Disconnect the crankshaft position (CKP) sensor electrical connector.
11. Disconnect the A/C compressor clutch electrical connector.
12. Disconnect the RH heated oxygen sensor (HO2S) electrical connector.
13. Disconnect the LH heated oxygen sensor (HO2S) electrical connector. Klj . 3 ba
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14. Lower the vehicle.
15. Disconnect the coolant reservoir electrical connector.
16. Disconnect the following connectors:
zCamshaft position (CMP) sensor
z LH radio ignition interference capacitor
17. Separate the wiring harness from the power steering reservoir bracket. Klj . 4 ba
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18. Disconnect the generator connectors:
zBattery power supply wire
z Voltage regulator
19. Disconnect the following connectors: zLH fuel injectors
z LH ignition coils
20. Disconnect the following connectors: zExhaust vacuum regulator (EVR)
z Ground wire
21. Disconnect the EGR pressure transducer electrical connector. Klj . 5 ba
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22. Disconnect the fuel pressure sensor electrical connector and the vacuum hose.
23. Slide cover up and remove the nut and the power distribution box battery supply wire.
24.
NOTE: These two connectors are located under the power distribution box.
Disconnect the two connectors.
25. Disconnect the main vacuum hose. Klj . 6 ba
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26. Disconnect the vacuum lines
27. Squeeze the two locking tabs, and remove the accelerator cable and the speed control cable (if
equipped) from the bracket and position aside.
28. Separate the fuel charging wiring (9D930) from the rear of the intake manifold (9424) and remove from the vehicle.
Installation 1. Position the fuel charging wiring in the vehicle and attach to the rear of the intake manifold. Klj . 7 ba
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2.
NOTE: Make sure the locking clips are fully engaged into the bracket.
Reposition the accelerator cable and the speed control cable (if equipped) and install the cables
into the bracket.
3. Connect the vacuum lines.
4. Connect the main vacuum hose.
5. Connect the two connectors. Klj . 8 ba
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