Equinox FWD V6-3.4L (2007)
Fuel Rail: Service and Repair
FUEL RAIL ASSEMBLY REPLACEMENT
REMOVAL 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.
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 the fuel system pressure. Refer to Fuel Pressure Relief.
2. Remove the upper intake manifold.
3. Disconnect the engine fuel feed pipe (1) at the fuel rail (4).
4. Disconnect the main fuel injector harness electrical connector.
5. Disconnect the coolant temperature sensor and camshaft position sensor electrical connectors
6. Disconnect the electrical connectors from the fuel injectors.