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Home >> Chevrolet >> 2004 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System 3.8L (Introduction) >> Repair Instructions >> Fuel Pressure Regulator Replacement >> Installation Procedure
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Installation Procedure

NOTE:
  • Do not use compressed air in order to test or clean a fuel pressure regulator as damage to the fuel pressure regulator may result.
  • Clean the fuel pressure regulator filter screen with gasoline if necessary.
  • Do not immerse the fuel pressure regulator in a solvent bath in order to prevent damage to the fuel pressure regulator.
  1. Install the new O-rings on the fuel pressure regulator (6), if a new fuel pressure regulator is not being installed. Lubricate the O-rings lightly with clean engine oil.
  2. Install the regulator O-rings (4,5).
  3. Install the small regulator O-ring (2).
  4. Install the fuel pressure regulator (6) in the fuel pressure regulator housing (1).
  5. Install the snap ring (7).
    6. Fig 1: Exploded View Of Fuel Pressure Regulator
    GM12396Courtesy of GENERAL MOTORS CORP.
  6. Install the vacuum line to the fuel pressure regulator.
    7. Fig 2: View Of Vacuum Line At Pressure Regulator
    GM155470Courtesy of GENERAL MOTORS CORP.
  7. Tighten the fuel fill cap.
  8. Connect the negative battery cable. Refer toBattery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  9. Inspect for leaks.
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition.
    4. Inspect for fuel leaks.
  10. Install the fuel injector sight shield. Refer toFuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.
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