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Home › Cadillac › 2004 › CTS Base, 3.2 N › Repair and Diagnosis › Engine Performance › System › Engine Controls - 2.6L & 3.2L - Introduction › Repair Instructions › Fuel Pressure Regulator Replacement › Installation Procedure

Installation Procedure

  1. Apply a few drops of clean engine oil to the O-ring seals on the fuel pressure regulator.
    Fig 1: Locating Fuel Pressure Regulator
    GM818889Courtesy of GENERAL MOTORS CORP.
    2. IMPORTANT: Be sure to locate the atmospheric vent toward the front of the engine on the fuel pressure regulator.
  2. Twist while pushing inward on the fuel pressure regulator, until fully seated against the fuel rail.
  3. Position the clamp around both the fuel pressure regulator and the fuel rail.
    4. Fig 2: View Of Fuel Pressure Regulator Clamp Bolt
    GM818888Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the fuel pressure regulator clamp bolt.

    Tighten:  Tighten the fuel pressure regulator clamp bolt to 5 N.m (44 lb in).

  5. Install the atmospheric vent hose on to the fuel pressure regulator port.
  6. Using the scan tool turn ON the fuel pump to pressurize the system.
  7. Check for fuel leaks.
  8. Install the air inlet grill. Refer to Air Inlet Grille Panel Replacement (LHD) or Air Inlet Grille Panel Replacement (RHD) in Body Front End.
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