Fuel Injector: Service and Repair

CAUTION
- Use care in removing the fuel injectors to prevent damage to the electrical connector pins on the injector and to prevent damage to the nozzle. Service the fuel injector as a complete assembly only. The fuel injector is an electrical component. Do Not immerse the fuel injector in any type of cleaner.
- The engine oil may be contaminated with fuel if the fuel injectors are leaking.

1. Disconnect the negative battery cable.
2. Perform the Fuel Pressure Release Procedure.
3. Remove the fuel rail assembly.
4. Spread the injector retainer clip to release the injector from the fuel rail.
5. Remove the fuel injector.
6. Discard the injector retainer clip.
7. Remove the injector O-ring seals from both ends of the injector. Discard the O-ring seals.

INSTALLATION PROCEDURE






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

1. Lubricate the new injector O-ring seals with clean engine oil.
2. Install the new injector O-ring seals on the injector.
3. Install a new retainer clip on the injector.
4. Push the fuel injector into the fuel rail injector socket with the electrical connector facing outward. The retainer clip locks on to a flange on the fuel rail injector socket.
5. Install the fuel rail assembly.
6. Tighten the fuel filler cap.
7. Connect the negative battery cable.
8. Inspect for leaks.
A. Turn the ignition switch ON for 2 seconds.
B. Turn the ignition switch OFF for 10 seconds.
C. Turn the ignition switch ON.
D. Check for fuel leaks.