Fuel Rail: Service and Repair
REMOVAL PROCEDURETOOLS REQUIRED
^ J 34730 Fuel Pressure Gauge
^ J 37088-A Fuel Line Quick Connect Tools
NOTE:
^ Use care when servicing the fuel system components, especially the fuel injector electrical connectors, the fuel injector tips, the injector O-rings. Plug the inlet and the outlet ports of the fuel rail in order to prevent contamination.
^ Do not use the compressed air to clean the fuel rail assembly as this may damage the fuel rail components.
^ Do not immerse the fuel rail assembly in a solvent bath in order to prevent damage to the fuel rail assembly.
1. Relieve the fuel pressure from the fuel system.
Description:
2. Clean the fuel rail assembly and connections.
3. Remove the fuel feed (1) and return (2) pipes from the fuel rail.
4. Remove the vacuum line from the pressure regulator.
5. Remove the vacuum line from the throttle body.
6. Remove the ignition coil wires from the coil and retainer clips on top of the super charger.
7. Remove the generator and rear generator mounting bracket.
8. Remove the fuel injector electrical connectors from the fuel injectors.
9. Remove the fuel injector electrical harness clips holding harness to front of fuel rail.
10. Remove the supercharger boost control solenoid vacuum lines.
11. Remove the supercharger bypass valve actuator vacuum lines.
12. Remove the supercharger boost control solenoid (2).
13. Remove the supercharger bypass valve actuator (1).
14. Remove the fuel rail hold-down bolts from the fuel rail.
IMPORTANT: When servicing the fuel rail assembly, precautions must be taken to prevent dirt and other contaminants from entering the fuel passages. It is recommended that the fittings be capped, and the holes be plugged during servicing.
15. Remove the fuel rail with equal force on both sides of the fuel rail.
16. Remove the fuel rail with equal force on both sides of the fuel rail.
INSTALLATION PROCEDURE
CAUTION: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always install the fuel injector O-rings in the proper position. If the upper and lower O-rings are different colors (black and brown), be sure to install the black O-ring in the upper position and the brown O-ring in the lower position on the fuel injector. The O-rings are the same size but are made of different materials.
NOTE:
^ Use care when servicing the fuel system components especially the fuel injector electrical connectors, the fuel injector tips, the injector O-rings. Plug the inlet and the outlet ports of the fuel rail in order to prevent contamination.
^ Do not use the compressed air to clean the fuel rail assembly as this may damage the fuel rail components.
^ Do not immerse the fuel rail assembly in a solvent bath in order to prevent damage to the fuel rail assembly.
1. The O-rings must be replaced on all components that are replaced.
2. Lightly oil the fuel injector (2) O-rings with clean motor oil.
3. Place the fuel rail assembly on the intake manifold.
4. Seat the fuel injectors by HAND.
NOTE: Refer to Fastener Notice in Cautions and Notices.
5. Install the fuel rail hold-down bolts.
Tighten
^ Tighten the fuel rail hold-down bolts to 10 N.m (7 lb ft).
^ Tighten the fuel rail hold-down stud to 25 N.m (18 lb ft).
6. Install the supercharger bypass valve actuator (1).
7. Install the supercharger boost control solenoid (2).
8. Install the supercharger bypass valve actuator vacuum lines.
9. Install the supercharger boost control solenoid vacuum lines.
10. Install the generator and rear generator mounting bracket.
11. Install the fuel injector electrical harness clips holding harness to front of fuel rail.
12. Install the fuel injector electrical connectors to the fuel injectors.
13. Install the ignition coil wires to coil and retainer clips on top of super charger.
14. Install the vacuum line to the pressure regulator.
15. Install the vacuum lines to throttle body.
16. Install the fuel feed (1) and return (2) pipes to the fuel rail.
17. Install the fuel injection sight shield.