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-RELATED 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. BEFORE WORKING ON OR DISCONNECTING ANY OF THE FUEL LINES OR FUEL SYSTEM COMPONENTS, THE FUEL SYSTEM PRESSURE MUST BE RELIEVED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

1. Disconnect the battery ground cable.
2. Relieve the fuel pressure.
3. Remove the throttle body.







4. Disconnect the eight fuel injector electrical connectors.







5. Disconnect the brake booster vacuum hose.







6. Disconnect the vacuum hoses from the throttle body adapter and the fuel pressure regulator.







7. Disconnect the vacuum hoses from the EGR valve and the EVAP canister purge solenoid.







8. Disconnect the vapor hose from throttle body adapter.







9. Disconnect the EGR tube from the EGR valve.







10. Remove the Idle Air Control (IAC) and crankcase air inlet tubes.
11. Disconnect the fuel hose.







12. Remove the Positive Crankcase Ventilation (PCV) valve and tube.







13. Remove the fuel injection supply manifold bolts and the manifold.
14. Remove the fuel injectors.

INSTALLATION
1. To install, reverse the removal procedure.

NOTE: Lubricate the new fuel injector O-rings with clean engine oil.