Removal Procedure

Fig 1: Identifying Fuel Injection Fuel Rail Assembly And Components

Courtesy of GENERAL MOTORS CORP.

CAUTION: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.

CAUTION: Refer to Battery Disconnect Caution .

Disconnect the negative battery cable.
Disconnect the common rail pressure sensor connector.
Disconnect the common rail regulator connector.
Disconnect the common rail return hose.
Remove the engine wiring guide from the intake manifold.

Fig 2: View Of Fuel Pipe-To-Common Rail And Retaining Bolt

Courtesy of GENERAL MOTORS CORP.

Remove the high pressure fuel pipes. Refer to Fuel Injector Fuel Feed Pipe Replacement .

Fig 3: View Of Common Rail Assembly And Bolts

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Put a caps on the common rail pipe threads to avoid contamination from dust as soon as the fuel pipes are removed to prevent be clogged injectors.

Remove the common rail assembly.