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Fuel Rail Crossover Pipe (5.3L): Removal

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Relieve the fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE .
  2. Disconnect the fuel feed and return pipes (1) from the fuel rail. See Figure. See FUEL LINE DISCONNECT FITTINGS (5.3L) .
  3. Remove the fuel return pipe attaching screw (3) and the fuel return pipe retainer (2). See Figure.
  4. Remove the fuel return pipe (1).
  5. Remove and discard the fuel return pipe "O" ring (6).
  6. Remove the fuel pressure connection core assembly (24) from the crossover pipe (25).
  7. Remove the retaining clip attaching screw (22) and the crossover fuel pipe retainer clip (21).
  8. Remove the retaining clip attaching screw (4) and the crossover fuel pipe retainer clip (5).
  9. Remove the crossover pipe rail assembly (25) from the left hand fuel rail assembly (14) and the right hand rail assembly (15).
  10. Remove and discard the crossover fuel pipe "O" rings (7, 20).
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