2024 Infiniti QX55 EssentialFACTORY OEM SERVICE PROCEDURE

Disassembly and Assembly

Disassembly 

NOTE: SYMBOL Before disassembly, note the proper placement of the wires to the correct terminals and correct wire routing to the terminals.
  1. Disconnect fuel level sensor unit and fuel tank temperature sensor harness connectors (A).
    GNSDB138949Courtesy of NISSAN NORTH AMERICA, INC.
  2. Remove wires from wire clips (B).
    CAUTION:

    Be careful not to damage wires when removing them from wire clips.

  3. Release clips (A), then remove fuel temperature sensor (1) from fuel filter and fuel pump assembly.
    GNSDB138848Courtesy of NISSAN NORTH AMERICA, INC.
  4. Release tab (A) using suitable tool, then slide fuel level sensor unit (1) in direction shown in the illustration.
    GNSDB139284Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE: SYMBOL Fuel level sensor unit shown in the illustration removed from fuel filter and fuel pump assembly for clarity.

Assembly 

Assembly is in the reverse order of disassembly.

NOTE: SYMBOL
  • Ensure proper placement of the wires to the correct terminals and correct wire routing to the terminals.
  • After connecting terminals, ensure they are securely locked and cannot be pulled out.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.