Removal (3.8L - VIN 1)
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Monte Carlo, 2003 Chevrolet Impala, 2003 Buick Regal, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- Release fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE . Clean the fuel rail assembly and connections. Disconnect the fuel feed pipe and return pipe at the fuel rail. See FUEL LINE DISCONNECT FITTINGS .
- Disconnect the vacuum line from the fuel pressure regulator. Remove the ignition coil wires and retainer clips on top of the supercharger. Remove the rear generator mounting bracket with the purge valve attached. See Figure.
- Remove the bypass valve actuator. Disconnect the fuel injector electrical connectors. Remove the fuel injector electrical harness clips holding harness to front and the rear of the fuel rail.
- Remove the fuel rail hold-down nuts. Remove the fuel rail with equal force on both sides of the fuel rail.
- To remove injector(s) from the fuel rail, remove the fuel injector retainer clip. Remove the fuel injector from the fuel rail. Remove and discard the fuel injector upper "O" ring.