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Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> External Pages >> Different car >> Section 74 (Fuel System - Service Information) >> FUEL PUMP (for High Pressure) >> Removal [11/2021 - ] >> Procedure

Removal [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECAUTION 
    NOTE:

    After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [11/2021 - ]

  2. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [11/2021 - ]

  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - Step 2

  4. REMOVE INTAKE MANIFOLD 

    Refer to REMOVAL [11/2021 - ]

  5. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    1. GTY1076105Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the fuel tube sub-assembly from the fuel pump assembly.

        Refer to PRECAUTION [11/2021 - ]

  6. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
    WARNING:

    To prevent serious injury due to fuel spray from the high-pressure fuel lines, always discharge fuel system pressure before removing any fuel system components.

    1. GTY1075216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the ignition coil connector.
      2. Using an 8 mm socket wrench, remove the bolt.
      3. Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 1 fuel pipe sub-assembly.
      4. Loosen the 2 bolts of the fuel (engine room side) pump assembly.
      5. Remove the No. 1 fuel pipe sub-assembly from the fuel delivery pipe and fuel (engine room side) pump assembly.
  7. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 
    NOTE:

    When replacing the fuel (engine room side) pump assembly, it is necessary to replace the No. 1 fuel pipe sub-assembly with a new one.

    1. GTY1075743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE FUEL PUMP SPACER GASKET 
    1. GTY1075736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE FUEL PUMP LIFTER ASSEMBLY 
    1. GTY1075728Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002