Fuel Injector: Service and Repair

REMOVAL PROCEDURE





TOOLS REQUIRED
^ J34730 Fuel Pressure Gauge
^ J41081 Fuel Injector Remover

1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure.
2. Disconnect the fuel injector electrical connector to vehicle harness.
3. Disconnect the fuel pressure regulator vacuum hose.
4. Disconnect the fuel rail ground wire strap at the rear cylinder head.




5. Release the fuel rail to intake manifold locking tab (8) by pushing toward center of intake manifold.




6. Pry the injector up out of intake manifold using J 41081 between the bottom of injector and intake manifold.




7. Spread the injector retainer clip (3) to release injector from fuel rail.





NOTE: It may be necessary to release the adjacent injector(s) from the intake manifold to allow increased fuel rail movement for injector access.

8. Remove the fuel injector assembly (1).

INSTALLATION PROCEDURE




1. Lubricate the new upper (3) and lower injector (2) O-rings with clean engine oil.
2. Install the O-rings on the injector.
3. Install the new retainer clip on to the injector.
4. Install the fuel injector into fuel rail.
5. Push the fuel injector in far enough to engage retainer clip with machined slots on rail socket.
6. A snap will be heard when the injectors on the fuel rail are fully seated.




7. Push the fuel rail down onto the intake manifold until the locks latch.
8. Install the injector electrical connector.




9. Tighten the fuel filler cap (1).
10. Install the negative battery cable.
11. Inspect for fuel leaks.
11.1. Turn ignition switch to On position for 2 seconds.
11.2. Turn the ignition switch OFF for 10 seconds.
11.3. Turn the ignition switch ON.
11.4. Check for fuel leaks.




12. Install the rear seat cushion.

NOTE: Refer to Fastener Notice in Service Precautions.

13. Install the intake manifold top cover.

Tighten
Tighten the intake manifold top cover to 3 N.m (27 lb in).