Fuel Rail: Service and Repair
REMOVAL
1. Remove fuel filler cap and disconnect negative battery cable.
2. Perform fuel system pressure release. Service and Repair
Throttle Body Mounting:
3. Remove the throttle body. Throttle Body Replacement
A/C Support Bracket:
4. Remove A/C compressor support bracket.
Fuel Injector/Connector Location:
5. Remove and individually tag each fuel injector harness connector from the injectors.
EVAP Purge Solenoid:
6. Remove EVAP purge solenoid bracket
7. Disconnect the fuel supply hose from the fuel rail. Disconnect the fuel return tube, and vacuum tube from the fuel pressure regulator.
Fuel Pressure Regulator Location:
8. Remove the fuel rail mounting bolts, and on automatic transmission vehicles, remove the transmission throttle line pressure cable and bracket, to facilitate fuel rail removal.
Fuel Pressure Regulator Location:
9. Remove the fuel rail assembly by gently rocking the assembly, until all the injectors pop out of the intake manifold. Remove left and right fuel rail as an assembly. DO NOT remove fuel rail connecting hoses.
INSTALLATION
1. Position each injector tip into its respective injector bore in the intake manifold. Seat the injectors into the manifold.
2. Install and torque the fuel rail mounting bolts to 20 ft-lbs (27 Nm). On automatic transmission vehicles, install the transmission throttle line pressure cable and bracket.
3. Connect the fuel return and supply tubes, using new quick connect "O" rings, and spacers.
4. Install EVAP purge solenoid bracket
5. Connect the injector harness wire connectors to their respective injectors.
6. Install A/C compressor support bracket.
7. Install the fuel pressure regulator vacuum hose, and install the cap on the test port.
8. Install the throttle body.
9. Install the fuel filler cap, and install the negative battery cable.
10. Using the DRB II select the Automatic Shut Down (ASD) Fuel System Test to pressurize fuel system and check for leaks. SEE COMPUTERS AND CONTROL SYSTEMS/SCAN TOOL ORIENTATION
CAUTION: Unless the test is stopped or the ignition switch is turned to the OFF position the fuel pump relay and the ASD relay will remain energized for 7 minutes by the ASD Fuel System Test.