Removal Procedure

NOTE: Always maintain cleanliness when servicing fuel system components.

Fig 1: View Of Vacuum Line At Pressure Regulator

Courtesy of GENERAL MOTORS CORP.

Relieve the fuel pressure. Refer to Fuel Pressure Relief (Without CH 48027) or Fuel Pressure Relief (With CH 48027) .
Clean any dirt from the fuel pressure regulator retaining ring.
Remove the vacuum line from the pressure regulator.

Fig 2: Removing/Installing Fuel Pressure Regulator

Courtesy of GENERAL MOTORS CORP.

Remove the snap ring (7).
Using a shop towel to catch any spilled fuel, lift and twist the fuel pressure regulator in order to remove the fuel pressure regulator (6) from the fuel pressure regulator housing (1).
Remove the regulator O-ring small (2).
Remove the regulator O-ring large (4).
Remove the regulator O-ring back up (5).
Cover the fuel pressure regulator housing (1) to prevent contamination from entering the fuel system.