CTS RWD V8-6.2L SC (2009)
Fuel Rail: Service and Repair
Fuel Injection Fuel Rail Assembly Replacement
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (See: Starting and
Charging/Battery/Battery Cable/Service and Repair).
2. Remove the front and rear intake manifold covers. Refer to Intake Manifold Cover Replacement - Rear (See: Engine, Cooling and
Exhaust/Engine/Intake Manifold/Service and Repair).
3. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (Without CH 48027) (See: Fuel Filter/Fuel Pressure Release/Service and Repair
)Fuel Pressure Relief (With CH 48027) (See: Fuel Filter/Fuel Pressure Release/Service and Repair)
4. Disconnect the fuel pipe from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service (See: Fuel Line Coupler/Service and
Repair/Metal Collar Quick Connect Fitting Service)
5. Disconnect the fuel injection Harness connectors (1, 2).
6. Disconnect the BARO sensor harness connector (5).
7. Disconnect the intake temperature sensor harness connector (4).
8. Disconnect the supercharger air outlet pressure sensor harness connector (3).
