Nissan Quest 2001-02 and 2004-06

Removal & Installation

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3.3L Engine





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Fig. Exploded view of fuel tank and components-3.3L Engine

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Properly relieve the fuel system pressure.
  6.  
  7. Drain fuel from fuel tank.
  8.  
  9. Disconnect electrical connectors.
  10.  
  11. Remove filler protector.
  12.  
  13. Disconnect filler tube.
  14.  
  15. To disconnect the quick-connectors, perform the following:

    To prevent damaging fuel lines, remove quick connectors with Tool.
     
    Keep the connecting portion of the tubes and quick connector clean.
     
    Put mating marks on tubes and connectors for correct installation.
     
    Hold side of connector, slide tool inside of quick connector to open retainer and pull tube out of quick connector.
     

  16.  
  17. Remove tank mounting band bolts while supporting fuel tank.
  18.  
  19. Remove the fuel tank.
  20.  

To install:

  1. To install, reverse removal procedure.
  2.  
  3. Connect the quick-connectors as follows:

    Be sure that the connecting portion is clean and smooth.
     
    Align mating marks.
     
    Insert tube into the center of the connector until you hear a click.
     
    Pull on the fuel tube and connector to make sure they are firmly connected.
     
    Start the engine, increase engine speed and verify that there are no leaks.
     

  4.  

3.5L Engine





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Fig. Exploded view of fuel tank and components-3.5L Engine

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Properly relieve the fuel system pressure.
  4.  
  5. Check the fuel level with the vehicle on a level surface. If the fuel gauge indicates more than 7 / 8 full, drain the fuel from the fuel tank until the fuel gauge indicates a level at or below 7 / 8 full.
  6.  
  7. In case the fuel pump does not operate, use the following procedure:

    Insert fuel tubing of less than 0.98 inches (25 mm) diameter into the fuel filler tube through the fuel filler opening to drain fuel from the fuel filler tube.
     
    Disconnect the fuel filler hose from the fuel filler tube.
     
    Insert fuel tubing into the fuel tank through the fuel filler hose to drain fuel from the fuel tank.
     

  8.  
  9. Open the fuel filler lid and unscrew the fuel filler cap to release the pressure inside the fuel tank.
  10.  
  11. Release the fuel pressure from the fuel lines.
  12.  
  13. Disconnect the negative battery cable.
  14.  
  15. Remove the center exhaust tube, with mufflers.
  16.  
  17. Disconnect the parking brake cables from the equalizer, then disconnect the three parking brake cable mounting brackets on each cable and position the cables out of the way.
  18.  
  19. Remove the fuel tank protector.

    Click image to see an enlarged view

    Fig. Disconnecting the fuel filler hose, recirculation hose and EVAP canister hose at the fuel tank

  20.  
  21. Disconnect the fuel filler hose, recirculation hose and EVAP canister hose at the fuel tank as shown in illustration.
  22.  
  23. Disconnect the fuel tank mounting straps while supporting the fuel tank.
  24.  
  25. Lower the fuel tank to access the top of the fuel level sensor unit, fuel filter, and fuel pump assembly.
  26.  
  27. Disconnect the fuel level sensor unit, fuel filter, and fuel pump assembly electrical connector, and the fuel feed hose from the fuel level sensor unit, fuel filter, and fuel pump assembly.
    CAUTION
    Observe the following when disconnecting the quick-connectors:



    The tube can be removed when the tabs are completely depressed. Do not twist it more than necessary.
     
    Do not use any tools to remove the quick connector.
     
    Keep the resin tube away from heat. Be especially careful when welding near the tube.
     
    Prevent liquid acids, such as battery electrolyte, from getting on the resin tube.
     
    Do not bend or twist the tube during installation and removal.
     
    Only when the tube is replaced, remove the remaining retainer on the tube or fuel level sensor, fuel filter, and fuel pump assembly.
     
    When the tube or fuel level sensor, fuel filter, and fuel pump assembly is replaced, also replace the retainer with a new one (green colored retainer).
     
    To keep the connecting portion clean and to avoid damage and foreign materials, cover them completely with plastic bags or something similar.
     

  28.  
  29. Disconnect the quick-connectors by performing the following:

    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.
     

  30.  
  31. Remove the fuel tank.
  32.  
  33. If replacing the fuel tank, disconnect the EVAP hose and remove the fuel level sensor unit, fuel filter, and fuel pump assembly to transfer to the new fuel tank.
  34.  

To install:

  1. To install, reverse removal procedure.
  2.  
  3. Before tightening the fuel tank mounting straps, temporarily install the fuel filler hose, recirculation hose and EVAP canister hose. Tighten all fasteners to specification.
  4.  
  5. Connect the quick-connectors by performing the following:

    Check the connection for damage or any foreign materials
     
    Align the connector with the tube, then insert the connector straight into the tube until a click is heard
     
    After the tube is connected, make sure the connection is secure by pulling on the tube and the connector to make sure they are securely connected
     

  6.  
  7. Visually confirm that the two retainer tabs are connected to the quick connector.
  8.  
  9. Check the parking brake for proper operation.
  10.  

 
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