Century V6-3100 3.1L VIN M SFI (1998)
Fuel Rail: Service and Repair
Removal Procedure
An eight digit identification number is stamped on the left hand fuel rail (fueling even cylinders 2,4,6), Refer to this number if servicing or part
replacement is required).
Caution: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always Ins tall 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.
Important: 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.
1. Relieve fuel system pressure. Refer to Fuel Pressure Release Procedure.
2. Remove the upper intake manifold. Refer to Intake Manifold Replacement (Upper).
3. Remove the engine fuel feed pipe at fuel rail.
Description
4. Remove the engine fuel return pipe at the fuel pressure regulator.
5. Remove the fuel feed pipe and fuel return pipe O-rings and discard.
