Fuel Injector(s) Replacement

Air Plenum/Fuel Rail Assembly Exploded View:

Port Fuel Injector:

WARNING: To reduce the risk of fire and personal injury that may result from a fuel leak, always replace any O-ring seals exposed during component service.

CAUTION: Use care in removing the fuel injectors to prevent damage to the nozzle, and to the electrical connector pins on the injector. The fuel injector is serviced as a complete assembly only. Since it is an electrical component, it should not be immersed in any type of cleaner.

REMOVAL:

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. See MAINTENANCE PROCEDURES/FUEL SYSTEM PRESSURE RELIEF.
3. Remove the intake manifold plenum. See INTAKE MANIFOLD PLENUM.
4. Remove the fuel rail assembly. See FUEL RAIL ASSEMBLY.
5. Rotate the injector retainer clip to the release position.
6. Remove the fuel injector from the fuel rail.

NOTE: Different fuel injectors are calibrated for different flow rates. When ordering new fuel injectors, be sure to order the identical part number that is inscribed on the old injector.

Injector Part Number Location:

DISASSEMBLY:

1. Remove the injector O-ring seals from both ends of the injector, and discard.
2. Remove and discard the injector retainer clip.

ASSEMBLY:

1. Lubricate the new injector O-ring seals with clean engine oil, and install them on the injector.
2. Position the new injector retainer clip on the injector.

INSTALLATION:

1. Insert the injector into the fuel rail injector socket, with the electrical connector facing outward.
2. Rotate the injector retainer clip to the locking position.
3. Install the fuel rail assembly.
4. Check for fuel leaks:
a. Temporarily connect the negative battery cable.
b. With the engine "OFF" and the ignition "ON," check for fuel leaks.
c. Disconnect the negative battery cable.
5. Install the intake manifold plenum.
6. Connect the negative battery cable.