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Home >> Cadillac >> 2013 >> XTS AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 3.6L (LFX) - Repair Instructions >> Repair Instructions >> Fuel Tank Replacement (AWD) >> Removal Procedure

Removal Procedure

WARNING:

Refer to Safety Glasses Warning .

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  2. Drain the fuel tank. Refer to Fuel Tank Draining .
  3. Remove the propeller shaft. Refer to Propeller Shaft Replacement .
  4. Remove the exhaust system. Refer to Exhaust Muffler Replacement (FWD) , Exhaust Muffler Replacement (AWD) .
  5. Fig 1: Fuel Pump Module Wiring Harness
    GM3336926Courtesy of GENERAL MOTORS COMPANY
  6. Disconnect the fuel tank fuel pump module wiring harness (1).
  7. Fig 2: Hose Clamps & Filler Tube
    GM2203818Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Do not breathe the air through the EVAP component tubes or hoses. The fuel vapors inside the EVAP components may cause personal injury.

  8. Disconnect the fuel tank filler vent pipe from the fuel tank filler vent pipe (3). Refer to Plastic Collar Quick Connect Fitting Service .
  9. Disconnect the fuel tank filler tube (2) from the fuel tank.
  10. Fig 3: Evaporative Emission Purge & Fuel Feed Pipes With Fuel Pressure Sensor Harness Connector
    GM3336887Courtesy of GENERAL MOTORS COMPANY
  11. Disconnect the evaporative emission purge and fuel feed pipes (1). Refer to Plastic Collar Quick Connect Fitting Service .
  12. Disconnect the fuel pressure sensor harness connector (2).
  13. Disconnect the wiring harness connector from the fuel pipe.
  14. Position a suitable hydraulic lift below the fuel tank.
  15. Fig 4: Fuel Tank Straps And Fuel Tank
    GM2673852Courtesy of GENERAL MOTORS COMPANY
  16. Remove both fuel tank strap fasteners (3).
  17. Remove both fuel tank straps (2) from the fuel tank (1).
  18. WARNING:

    To help avoid personal injury, always use jack stands when you are working on or under any vehicle that is supported only by a jack.

    CAUTION:

    When you are jacking or lifting a vehicle at the frame side rails or other prescribed lift points, be certain that the lift pads do not contact the catalytic converter, the brake pipes or the fuel lines. If such contact occurs, vehicle damage or unsatisfactory vehicle performance may result.

    NOTE:

    carefully maneuver the fuel tank past the exhaust system.

  19. With the aid of an assistant, lower the hydraulic lift to remove the fuel tank from the vehicle.
  20. Remove the fuel tank from the hydraulic lift.