Fuel Injector: Service and Repair

REMOVAL

WARNING: DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL-RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

CAUTION:
^ To remove the fuel injectors the lower intake manifold assembly must be removed.
^ The fuel injectors must be removed from the fuel supply manifold in the correct sequence. Failure to follow this procedure could result in damage to the fuel supply manifold.

1. Remove the fuel supply manifold assembly. Refer to Fuel Rail.







2. Remove the fuel rail attachment bolts.







3. Turn the assembly over. Separate the two halves of the intake manifold and pull the left bank of the lower intake manifold from the supply manifold assembly and the fuel injectors.







4. Remove the supply manifold and fuel injectors from the right bank of the lower intake manifold.
5. Disconnect the electrical connector from each fuel injector. For additional information, refer to Fuel Injector Wiring Harness.







6. Remove the fuel injectors from the fuel rail.







7. Remove and discard the O-ring seals from each fuel injector.

INSTALLATION







1. Lubricate the new fuel injector O-ring seals with Super Premium SAE 5W30 Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G.

NOTE: Install new fuel injector O-ring seals.







2. Install the fuel injectors into the fuel rail.







3. Connect the electrical connectors to each fuel injector.







4. Install the supply manifold and fuel injectors into the right half of the intake manifold.

CAUTION: The fuel injectors must he installed into the fuel supply manifold in the correct sequence. Failure to follow the procedure could result in damage to the fuel supply manifold.







5. Turn the assembly over. Assemble the two halves of the lower intake manifold as the fuel injectors are installed into the left half of the lower intake manifold.







6. Install the fuel rail attachment bolts.
7. Install the fuel supply manifold. For additional information, refer to Fuel Rail.