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Home >> Chevrolet >> 2005 >> Silverado 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls - 4.3L (Introduction)) >> Repair Instructions >> Fuel Pressure Regulator Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: If the fuel pressure regulator is to be reinstalled, inspect the filter screen for contamination. If the filter screen is contaminated, replace the regulator.
    Fig 1: View Of Fuel Meter Body Assembly Components
    GM821586Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the NEW O-rings with clean engine oil.
  2. Assemble the following NEW parts to the fuel pressure regulator:
    • Backup ring (7)
    • Regulator seal O-ring (8)
    • Regulator (9)
    • Regulator seal O-ring (10)
  3. Install the fuel pressure regulator with the vacuum tube pointing down.
  4. Install the fuel pressure regulator retainer clip (5).
  5. Install the upper manifold. Refer to Intake Manifold Replacement - Upper in Engine Mechanical-4.3L.
  6. Tighten the fuel fill cap.
  7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  8. Inspect for leaks.
    1. Turn the ignition ON, for 2 seconds.
    2. Turn the ignition OFF, for 10 seconds.
    3. Turn the ignition ON.
    4. Inspect for fuel leaks.
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