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Fuel Pressure Regulator: Removal

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
  1. The fuel pressure regulator is located on end of fuel rail. See Figure. Release fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE . Clean any dirt from the fuel pressure regulator. Disconnect the fuel pressure regulator vacuum line.
  2. Remove the fuel pressure regulator retaining clip. Using a shop towel to catch any spilled fuel, lift and twist the fuel pressure regulator in order to remove the fuel pressure regulator from the fuel rail. Remove the regulator seal lower "O" ring.
  3. Remove the regulator assembly filter. Remove the regulator seal upper "O" ring. Remove the regulator seal back-up ring. Cover the fuel pressure regulator housing in order to prevent contaminates from entering the fuel system.
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