LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2011 >> STS AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.6L - Repair Instructions >> Repair Instructions >> Fuel Injection Fuel Rail Assembly Replacement - Bank 1 >> Removal Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal Procedure

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (High Pressure Pump) .
  2. Remove the cross vehicle brace. Refer to Cross Vehicle Brace Replacement .
  3. Remove the fuel pipe shield. Refer to Fuel Pipe Shield Replacement .
  4. Remove the intake manifold. Refer to Intake Manifold Replacement .
  5. Remove the high pressure fuel pipe. Discard the pipe. Refer to Fuel Feed Intermediate Pipe Replacement .
  6. Remove the fuel rail crossover pipe. Refer to Fuel Injection Fuel Rail Crossover Tube Replacement . Discard the pipe.
  7. Remove the foam insulator from the fuel rails.
    8. Fig 1: Identifying Fuel Rail & Bolts
    GM1977746Courtesy of GENERAL MOTORS COMPANY
  8. Disconnect the fuel pressure sensor electrical connector and cut the wire harness tie straps.
  9. Remove the fuel rail (1) bolts (2).
    10. Fig 2: Identifying Fuel Pressure Sensor & Fuel Injection Fuel Rail
    GM1977753Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Note the correct routing of the electrical wiring. Failure to reinstall the wiring properly could result in damage to the wiring.

  10. Remove the fuel pressure sensor. Refer to Fuel Pressure Sensor Replacement .
  11. Remove and discard the direct fuel injector hold down clamps.
    12. NOTE:

    The direct fuel injectors must be rebuilt whenever the injector has been released from the fuel rail or cylinder head.

  12. Once the fuel rail is removed, remove the fuel injectors and rebuild them. Refer to Fuel Injector Replacement .
scientia non olet · About LEMON Manuals