G6 V6-3.5L (2009)
Fuel Rail: Service and Repair
Fuel Injection Fuel Rail Assembly Replacement
Removal Procedure
An 8-digit identification number is stamped on the fuel rail. Refer to this number if servicing or part replacement is required.
1. Remove the engine fuel feed pipe from the fuel rail.
Warning
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.
Caution: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open
pipes and passages.
2. Relieve fuel system pressure. Refer to Fuel Pressure Relief (Without CH 48027) (See: Fuel Filter/Fuel Pressure Release/Service and Repair/Fuel
Pressure Relief (Without CH 48027))Fuel Pressure Relief (With CH 48027) (See: Fuel Filter/Fuel Pressure Release/Service and Repair/Fuel
Pressure Relief (With CH 48027)).
3. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement (See: Engine, Cooling and Exhaust/Engine/Intake
Manifold/Service and Repair).
4. Disconnect the main injector harness electrical connector.
5. Disconnect the main fuel injector electrical harness connector.
