Avalanche 2500 4WD V8-8.1L VIN G (2003)
Fuel Pressure Regulator: Service and Repair
FUEL PRESSURE REGULATOR REPLACEMENT
REMOVAL PROCEDURE
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure.
2. Remove the engine sight shield.
3. Remove the fuel pressure regulator vacuum line.
4. Clean any dirt from the fuel pressure regulator retainer and the surrounding area.
5. Remove the fuel pressure regulator retainer (9).
6. Remove the fuel pressure regulator (8).
7. If necessary, remove the following:
7.1.
Backup ring (10)
7.2.
Large O-ring (11)
7.3.
Regulator filter (12)
7.4.
Small O-ring (13)
INSTALLATION PROCEDURE