Fuel Injector(s) Replacement

Fuel Rail Assembly - Exploded View:

CAUTION: Use care in removing the injectors to prevent damage to the electrical connector pins on the injector, and the nozzle. The fuel injector is serviced as a complete assembly only. Since it is an electrical component, DO NOT immerse it in cleaner.

REMOVAL:

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Service and Repair
3. Remove the upper manifold assembly.
4. Remove the fuel rail assembly, refer to FUEL RAIL ASSEMBLY.

MPFI Injector Assembly:

5. Remove the injector retainer clip and discard.
6. Remove the MPFI injector assembly.
7. Remove the injector O-ring seals from both ends of the injector and discard.

MPFI Injector P/N Location:

Each injector is calibrated for a specific flow rate. When replacing fuel injectors, order replacements with the identical part numbers as the old injectors.

INSTALLATION:

1. Lubricate new injector O-ring seals with clean engine oil, and install them on the injector assembly.
2. Install new injector retainer clips on the injector assemblies.
^ Position the open end of the clip facing the injector electrical connector.
3. Install the MPFI injector assembly into the fuel rail injector socket with the electrical connector facing outward.
^ Push in far enough to engage the retainer clip with the machined slots on the rail socket.
4. Install the fuel rail assembly.
5. Install the upper manifold assembly.