Fuel Injector: Service and Repair

TOOLS REQUIRED
^ J 34730-1A Fuel Pressure Gauge
^ J 37088A Tool Set, Fuel Line Quick Connect Separator

REMOVAL PROCEDURE

CAUTION: Refer to the Battery Disconnect Caution in Service Precautions.




1. Disconnect the negative battery cable.

IMPORTANT: Leaking fuel injectors may contaminate the engine oil with fuel.

2. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure.
3. Remove the fuel rail assembly.

NOTE: Use care in removing the fuel injectors in order to prevent damage to the fuel injector electrical connector pins or the fuel injector nozzles. Do not immerse the fuel injector in any type of cleaner. The fuel injector is an electrical component and may be damaged by this cleaning method.




4. Spread the injector retainer clip to release the injector from the fuel rail.
5. Remove the fuel injector.
6. Remove the injector O-ring seals from both ends of the injector.

INSTALLATION PROCEDURE

IMPORTANT: When ordering new fuel injector, be sure to order the correct injector for the application being serviced.




1. The fuel injector assembly is stamped with a part number identification (2), a manufacturing date (3), a week code (1), and a production plant number (4).
Inspect the new injectors in order to ensure installation of the correct part.




2. Lubricate the new injector O-ring seals with clean engine oil.
3. Install the new injector O-ring seals on the injector.
4. Install a new retainer clip on the injector.
5. Push the fuel injector into the fuel rail injector socket with the electrical connector facing outward.




6. Install the fuel rail assembly.
7. Tighten the fuel filler cap.
8. Connect the negative battery cable.
9. Inspect for leaks.
9.1. Turn the ignition switch ON for 2 seconds.
9.2. Turn the ignition switch OFF for 10 seconds.
9.3. Turn the ignition switch ON.
9.4. Inspect for fuel leaks.
10. Program the transmitters. Refer to Transmitter Programming in Keyless Entry.