Bonneville V6-3800 3.8L VIN L SFI (1995)
Fuel Rail: Service and Repair
Fuel Rail Assembly (VIN L)
REMOVE OR DISCONNECT
1. Bleed fuel from the fuel system. Refer to Computers and Control Systems/System Diagnosis/Diagnostic Charts/A Charts/Chart A-7 Fuel
System Pressure Relief Procedures. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Related Tests and Information/A Charts/Chart A-7 Fuel System Diagnosis/Fuel System Pressure Relief Procedure
2. Clean fuel rail assembly and connections.
3. Fuel feed and return pipes from the fuel rail tubes by squeezing tabs and pulling off the lines.
4. Vacuum lines from the pressure regulator.
5. Injector electrical connectors.
6. Fuel rail hold down bolts or nuts.
7. Fuel rail with equal force on both sides of the rail.
Important:
When servicing the fuel rail assembly, precautions must be taken to prevent dirt and other contaminates from entering the fuel passages. It is
recommended that fittings be capped, and holes plugged during service.
WARNING: To reduce the risk of fire and personal injury that may result from a fuel leak, always install injector O-rings in 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 injector. The O-rings are the same size but are made of different materials.
INSTALL OR CONNECT
1. O-rings must be replaced on all components that are replaced.
2. Lightly oil injector O-rings with clean motor oil.
3. Place rail on manifold assembly and seat injectors by hand.
Tighten bolts to 11 Nm (8 lb ft).
4. Fuel feed and return pipes by pushing pipes onto the fuel rail tubes.
5. Fuel injector electrical connectors.
6. Vacuum line to pressure regulator.
NOTICE:
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Care must be taken not to damage or dirty injector tips.
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Compressed air must not be used to internally flush, clean, dry the fuel rail assembly.
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Fuel rail assembly must not be immersed in solvent.
