Fuel Injector: Service and Repair

Fig. 27 Fuel Rail and Injectors:

REMOVAL
1. Disconnect negative cable from battery.
2. Release fuel system pressure.
3. Disconnect fuel supply tube from rail.
4. Disconnect electrical connectors from fuel injectors (Fig. 27).
5. Remove fuel rail mounting screws.
6. Lift rail off of intake manifold. Cover the fuel injector openings in the intake manifold.

Fig. 28 Fuel Injector Retainer:

7. Remove fuel injector retainer (Fig. 28).

Fig. 29 Fuel Injector 0-Rings:

8. Pull injector out of fuel rail. Replace fuel injector 0-rings (Fig. 29).


INSTALLATION
1. Apply a light coating of clean engine oil to the upper 0-ring.
2. Install injector in cup on fuel rail.
3. Install retaining clip.
4. Apply a light coating of clean engine oil to the 0-ring on the nozzle end of each injector.
5. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place. Tighten fuel rail mounting screws to 22.5 Nm ± 3 Nm (200 ± 30 in lb).
6. Attach electrical connectors to fuel injectors.
7. Conned fuel supply tube to fuel rail.