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Home >> Cadillac >> 2003 >> CTS Automatic >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Removal & Installation >> Fuel Systems >> Fuel Pressure Regulator >> Installation
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Fuel Pressure Regulator: Installation

  1. Apply a few drops of clean engine oil to "O" ring seals on fuel pressure regulator. Be sure to locate atmospheric vent toward front of engine on fuel pressure regulator.
  2. Twist while pushing inward on fuel pressure regulator, until fully seated against fuel rail. Position clamp around both fuel pressure regulator and fuel rail.
  3. Install fuel pressure regulator clamp bolt. Tighten fuel pressure regulator clamp bolt to specification. See TORQUE SPECIFICATIONS  .
  4. Install atmospheric vent hose on to fuel pressure regulator port. Using scan tool turn ON fuel pump to pressurize system. Check for fuel leaks.
  5. Install air inlet panel. See AIR INLET PANEL  under MISCELLANEOUS.
Fig 1: Locating Fuel Pressure Regulator
G00232156Courtesy of GENERAL MOTORS CORP.
Fig 2: Inspecting "O" Ring Seals
G00232157Courtesy of GENERAL MOTORS CORP.