Fuel Rail: 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 INJECTION COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
^ FUEL IN THE FUEL SYSTEM REMAINS UNDER HIGH PRESSURE EVEN WHEN THE ENGINE IS NOT RUNNING. USE CARE WHEN WORKING ON THE FUEL SYSTEM OR PERSONAL INJURY MAY OCCUR.
^ BEFORE WORKING ON OR DISCONNECTING ANY OF THE FUEL LINES OR FUEL SYSTEM COMPONENTS, THE FUEL SYSTEM PRESSURE MUST BE RELIEVED TO PREVENT POSSIBLE PERSONAL INJURY.

1. Remove the upper intake manifold.
2. Relieve the fuel system pressure.







3. Disconnect the fuel charging wiring connector from the engine control sensor electrical connector.

NOTE: The fuel charging wiring to engine control sensor wiring harness connector is located behind the lower intake manifold on the rear side of the wiring shield.







4. Disconnect the fuel pressure sensor vacuum hose.







5. Disconnect the fuel pressure sensor electrical connector.
6. Disconnect the fuel line.

CAUTION: After disconnecting, plug the fuel line to prevent leakage.







7. Remove the four bolts and the fuel supply manifold assembly.

CAUTION: The lower intake manifold assembly must be removed from the engine.

INSTALLATION







1. Position the fuel supply manifold assembly and tighten the four bolts using the sequence shown.
2. Connect the fuel line.







3. Connect the fuel pressure sensor electrical connector.







4. Connect the fuel pressure sensor vacuum hose.







5. Connect the fuel charging wiring connector from the engine control sensor electrical connector.
6. Test the fuel system pressure.