Removal Procedure

Relieve the fuel system pressure. Fuel Pressure Relief
Remove the fuel pipe shield. Fuel Pipe Shield Replacement (LFX)
Remove the intake manifold. Intake Manifold Replacement (LFX)
Remove the fuel feed intermediate pipe. Fuel Feed Intermediate Pipe Replacement (LFX)
Remove the fuel injection fuel rail noise shield from the fuel rails.

Fig 1: Fuel Pressure Sensor And Electrical Connector

GM2497626

Courtesy of GENERAL MOTORS COMPANY

Cut the plastic tie strap (1).
Disconnect the fuel pressure sensor electrical connector (2).
Remove the fuel pressure sensor (3).

Fig 2: Left Side Fuel Rail Fasteners

GM2497627

Courtesy of GENERAL MOTORS COMPANY

Remove the bank 2 fuel rail fasteners (1).

Fig 3: Right Side Fuel Rail Fasteners

GM2497674

Courtesy of GENERAL MOTORS COMPANY

Remove the bank 1 fuel rail fasteners (1) for clearance purposes.

Fig 4: Raising Fuel Rail With Special Tool

GM2497628

Courtesy of GENERAL MOTORS COMPANY

Using the EN-49248 - 4 hook, raise the fuel rail (1) as an assembly.
Once the fuel rail is free, remove the EN-49248 special tool.

Fig 5: Sliding Fuel Rail Toward Front Of Engine

GM2497630

Courtesy of GENERAL MOTORS COMPANY

Slide the fuel rail (1) toward the rear of the engine approximately 1 inch (25.4 mm), in order to clear the center injector bore.

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. Fuel Rail and Injectors Cleaning and Inspection (LFX)