OEM 2005 Chevrolet Impala Fuel Pressure Regulator

2005 Chevrolet Impala Fuel Pressure Regulator Parts and Q&A

• Q: How to replace the fuel pressure regulator while maintaining cleanliness in the fuel system on 2005 Chevrolet Impala?

  A: A clean environment must be maintained whenever you service any fuel system components during replacement of the Fuel Pressure Regulator. First, relieve the fuel pressure. The retention ring of the pressure regulator needs to be cleaned from all dirt before removing the vacuum line running to it. You should unlatch the snap ring followed by carefully lifting the Fuel Pressure Regulator using shop towel protection while twisting it free from the Fuel Pressure Regulator housing. The service professional should remove the small regulator o-ring and regulator o-rings (4,5) while using a cover on the Fuel Pressure Regulator housing to stop contaminants from entering. The installer must lubricate new o-rings for the Fuel Pressure Regulator with clean engine oil before installing them onto the regulator. Position the Fuel Pressure Regulator into the Fuel Pressure Regulator housing with the installed regulator o-rings(4,5) and small regulator o-ring. Secure the assembly with the snap ring. You should reconnect the vacuum line to the Fuel Pressure Regulator while tightening the fuel fill cap before reconnecting the negative Battery Cable. A leak inspection takes place through a two-second ignition on then ten-second ignition off sequence followed by ignition on to check for fuel leaks. The last step involves the installation of the fuel injector sight shield.