Removal Procedure

Relieve the fuel system pressure. Refer to Fuel Pressure Relief (Without CH-48027) , Fuel Pressure Relief (CH-48027) , Fuel Pressure Relief (High Side) .
Remove the fuel pipe shield. Refer to Fuel Pipe Shield Replacement .
Remove the intake manifold. Refer to Intake Manifold Replacement .
Remove the high pressure fuel pipe. Discard the pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LLT) .
Remove the fuel rail crossover pipe. Refer to Fuel Injection Fuel Rail Crossover Tube Replacement (LLT) . Discard the pipe.
Remove the bank 2 fuel injection rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LLT) .
Remove the foam insulator from the fuel rails.

Fig 1: Removing/Installing Fuel Rail Bolts

Courtesy of GENERAL MOTORS COMPANY

Disconnect the fuel pressure sensor electrical connector and cut the wire harness tie straps.
Remove the fuel rail bolts (2) from both rails, for clearance purposes.

Fig 2: Removing/Installing Fuel Pressure Sensor From Fuel Injection Fuel Rail

Courtesy of GENERAL MOTORS COMPANY

Remove the fuel pressure sensor (1). Refer to Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail .
Remove the fuel rail from the cylinder head.
Remove and discard the direct fuel injector hold down clamps.

NOTE:

The direct fuel injectors must be rebuilt whenever the injector has been released from the fuel rail or cylinder head.

Once the fuel rail is removed, remove the fuel injectors and rebuild them. Refer to Fuel Injector Replacement (LLT) .