Removal Procedure

Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
Remove the engine fuel supply and return pipes. Refer to Fuel Hose/Pipes Replacement - Engine Compartment .
Remove the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement .

Fig 1: View Of Fuel Pressure Regulator Vent Pipe

Courtesy of GENERAL MOTORS CORP.

Disconnect the vent pipe from the fuel pressure regulator.

Fig 2: Locating Fuel Pressure Regulator Retaining Bolt

Courtesy of GENERAL MOTORS CORP.

Remove the fuel pressure regulator bolt (1).

Fig 3: Identifying Fuel Pressure Regulator

Courtesy of GENERAL MOTORS CORP.

Remove the fuel pressure regulator.

Fig 4: View Of Fuel Injector Harness Connectors

Courtesy of GENERAL MOTORS CORP.

Disconnect the fuel injector harness connectors.

Fig 5: Locating Fuel Rail Attaching Studs

Courtesy of GENERAL MOTORS CORP.

Remove the fuel rail attaching studs (1).

IMPORTANT: Use care when removing the fuel rail assembly in order to prevent damage to the fuel injectors electrical connector terminals and spray tips.

Remove the fuel rail using the following procedure:
1. Pull the fuel rail back and upward to remove the fuel injectors from the cylinder head ports.
2. Rotate the fuel rail in order to position the injectors downward.
3. Remove the fuel rail.
Remove the fuel injectors from the fuel rail. Refer to Fuel Injector Replacement .