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Fuel Injector: Service and Repair




Injector Replacement

1. Relieve the fuel pressure Service and Repair.

2. Remove the intake manifold Service and Repair.

3. Remove the nut (A).





4. Disconnect the injector connectors (B), the intake side ignition coil connectors (C), and the EGR valve connector (D).

5. Remove the fuel rail mounting nuts (E) and the bolt (F) from the fuel rail (G), then remove the injectors and the fuel rail together.

6. Remove the injector clips (H) from the injectors (I).

7. Remove the injectors from the fuel rail.

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





9. Install the injector clips (D).

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

11. Install the fuel rail and the injectors in the cylinder head (F).

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

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

14. Connect the injector connectors (K), the intake side ignition coil connectors (L), and the EGR valve connector (M).

15. Install the intake manifold.

16. Turn the ignition switch to ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel rail is pressurized. Repeat this two or three times, then check for fuel leaks.

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