Fuel Injector: Service and Repair

Injector Replacement

1. Relieve the fuel pressure; '07-11 models Service and Repair.

2. Remove the intake air resonator Service and Repair.

3. Remove the air cleaner Service and Repair.

4. Remove the nut (A) and bolt (B).





5. Disconnect the connectors (C) from the injectors, the intake side ignition coils, the EGR valve, the rocker arm oil control valve, the rocker arm oil pressure sensor, the MAP sensor, and the rocker arm oil pressure switch.

6. Remove the ground terminals (D).

7. Disconnect the hoses from the fuel rail (E).

8. Remove the fuel rail mounting nuts (F) from the fuel rail, then remove the injectors and fuel rail together.

9. Remove the injector clips (G) from the injectors (H).

10. Remove the injectors from the fuel rail.

11. Coat the new O-rings (black) (A) with clean engine oil, and insert the injectors (B) into the fuel rail (C).





12. Install the injector clips (D).

13. Coat the injector O-rings (brown) (E) with clean engine oil.

14. Install the injectors into the injector base (F).

15. Install the fuel rail mounting nuts (G) and the bolt (H).

16. Install the nut (I) with a new O-ring (J).

17. Reconnect the fuel hoses.

18. Connect the ground terminal.

19. Connect the connectors on the injectors, the intake side ignition coils, the EGR valve, the rocker arm oil control valve, the rocker arm oil pressure sensor, the MAP sensor, and the rocker arm oil pressure switch.

20. Install the air cleaner Service and Repair.

21. Install the intake air resonator Service and Repair.

22. Turn the ignition switch to ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel pressure in the fuel line rises. Repeat this two or three times, then make sure there are no fuel leaks.