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Home >> Chevrolet >> 2005 >> Chevy Express G1500, Van Cargo, 4.3 X >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.3L - Introduction >> Repair Instructions >> Fuel Pressure Regulator Replacement >> Removal Procedure
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Removal Procedure

  1. Remove the engine cover. Refer to Engine Cover Replacement Interior Trim.
    2. Fig 1: Exploded View Of Fuel Injector Assembly
    GM585444Courtesy of GENERAL MOTORS CORP.
  2. Remove the upper intake manifold assembly. Refer to Intake Manifold Replacement - Upper in Engine Mechanical-4.3L.
  3. Remove the fuel pressure regulator retainer clip (13).
  4. Pull and twist the fuel pressure regulator (14) in order to remove the fuel pressure regulator from the fuel pressure regulator housing using a shop towel to catch any spilled fuel.
  5. Remove the regulator seal lower O-ring (18).
  6. Remove the regulator assembly filter (17).
  7. Remove the regulator seal upper O-ring (16).
  8. Remove the regulator seal backup ring (15).
  9. Cover the fuel pressure regulator housing to prevent contamination from entering the fuel system.
  10. Discard the O-rings.
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