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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1204 (Fuel System) >> Fuel Tank >> Removal and Installation >> Removal

Removal and Installation: Removal

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Follow the "General Precautions" before working on the fuel system. Refer to "GENERAL PRECAUTIONS ".
  1. Drain the fuel from the fuel tank, if necessary.
    • Position the vehicle so it is level.
  2. Remove the fuel filler cap to release the pressure from inside the fuel tank.
  3. Check the fuel level on level gauge. If the fuel gauge indicates more than the level as shown (full or almost full), drain the fuel from the fuel tank until the fuel gauge indicates the level as shown, or less.
    • If the fuel pump does not operate, use the following procedure to drain the fuel to the specified level after disconnecting the fuel filler hose from the fuel filler pipe.
      Fig 1: Identifying Fuel Level On Fuel Gauge
      G02384933Courtesy of NISSAN MOTOR CO., U.S.A.
    1. Insert a suitable hose of less than 15 mm (0.59 in) diameter into the fuel filler pipe through the fuel filler opening to drain the fuel from fuel filler pipe.
    2. Insert a suitable hose into the fuel tank through the fuel filler hose to drain the fuel from the fuel tank.
      • As a guide, the fuel level reaches the fuel gauge position as shown, or less, when approximately 14 liters (3 3/4 US gal, 3 1/8 Imp gal) of fuel are drained from the fuel tank.
  4. Remove the LH rear wheel and tire. Refer to "ROTATION ".
  5. Remove the four clips and remove the rear fender protector, front.
  6. Disconnect the fuel filler hose from the fuel filler pipe and disconnect the vent hose quick connector.
    Fig 2: Disconnecting Fuel Filler Hose From Fuel Filler Pipe
    G02384934Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Release the fuel pressure from the fuel lines. Refer to "FUEL PRESSURE RELEASE ".
  8. Remove the second row LH rear seat and the third row rear seat. Refer to "REAR SEAT ".
  9. Remove the second and third row rear seat belt buckles mounted on the floor. Refer to "SEAT BELTS ".
  10. Remove the LH center pillar trim, the LH rear trim panel, and the LH rear side door kick plate and weather stripping. Refer to "BODY SIDE TRIM ".
  11. Remove the second row rear center console and base. Refer to "FLOOR TRIM ".
  12. Reposition the floor carpet out of the way to access the inspection hole cover, located under the center LH rear seat.
  13. Remove the inspection hole cover by turning the retainers 90° degrees clockwise.
    • Remove the o-ring.
    Fig 3: Removing Inspection Hole Cover By Turning Retainers
    G02384935Courtesy of NISSAN MOTOR CO., U.S.A.
  14. Disconnect the fuel level sensor, fuel filter, and fuel pump assembly electrical connector, the EVAP hose, and the fuel feed hose.
    Fig 4: Identifying Fuel Tank Components For Removal
    G02384936Courtesy of NISSAN MOTOR CO., U.S.A.

    Disconnect the quick connector as follows:

    • Hold the sides of the connector, push in tabs and pull out the tube.
    • If the connector and the tube are stuck together, push and pull several times until they start to move. Then disconnect them by pulling.
      Fig 5: Disconnecting Quick Connector
      G02384937Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • The quick connector can be disconnected when the tabs are completely depressed. Do not twist the quick connector more than necessary.
    • Do not use any tools to disconnect the quick connector.
    • Keep the resin tube away from heat. Be especially careful when welding near the tube.
    • Prevent any acid liquids such as battery electrolyte, from getting on the resin tube.
    • Do not bend or twist the resin tube during connection.
    • Do not remove the remaining retainer on the hard tube (or the equivalent) except when the resin tube or the retainer is replaced.
    • When the resin tube or hard tube, or the equivalent, is replaced, also replace the retainer with a new one (white colored retainer).
      Fig 6: Cross Sectional View Of Quick Connector
      G02384938Courtesy of NISSAN MOTOR CO., U.S.A.
    • To keep the quick connector clean and to avoid damage and contamination from foreign materials, cover the quick connector with plastic bags or suitable material as shown.
    Fig 7: Covering Quick Connector With Plastic Bags
    G02384939Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Remove the four bolts and remove the fuel tank shield.
  16. Remove the propeller shaft. Refer to "REAR PROPELLER SHAFT ".
  17. Remove the three clips and remove the fuel tank protector at the front of the fuel tank as necessary to transfer to the new fuel tank.
  18. Disconnect fuel filler hose, and vent hose at the fuel tank side.
    Fig 8: Locating Fuel Tank Components
    G02384940Courtesy of NISSAN MOTOR CO., U.S.A.
  19. Remove the fuel tank strap bolts while supporting the fuel tank with a suitable lift jack.
    Fig 9: Supporting The Fuel Tank With A Suitable Lift Jack
    G02384941Courtesy of NISSAN MOTOR CO., U.S.A.
  20. Disconnect the EVAP hose from the molded clip in the top of the fuel tank while lowering the fuel tank.
  21. Lower the fuel tank using a suitable lift jack and remove it.
  22. If necessary, remove the lock ring using Tool.
    1. Tool number: - (J-46536) 
  23. If necessary, remove the fuel level sensor, fuel filter, and fuel pump assembly.
    CAUTION:
    • Do not bend the float arm during removal.
    • Avoid impacts such as dropping when handling the components.
      Fig 10: Removing Lock Ring With Tool (J-46536)
      G02384942Courtesy of NISSAN MOTOR CO., U.S.A.
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