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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - Service Information (2 Of 2) >> FUEL PUMP (for High Pressure (1Motor-HEV Model)) >> Removal [10/2022 - ] >> Procedure

Removal [10/2022 - ]: Procedure

  1. PRECAUTION 
    NOTE:

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

    Refer to BEFORE DISCONNECTING BATTERY [10/2022 - ]
  2. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [10/2022 - ]

  3. REMOVE BATTERY SERVICE COVER PLATE 

    Refer to PROCEDURE - Step 2

  4. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL 

    Refer to PROCEDURE - Step 3

  5. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 22
  6. REMOVE NO. 3 ENGINE COVER 

    Refer to PROCEDURE - Step 23

  7. REMOVE NO. 2 ENGINE COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  8. DISCONNECT ENGINE WIRE 

    Refer to PROCEDURE - Step 8

  9. DISCONNECT PURGE VALVE (NO. 1 VACUUM SWITCHING VALVE ASSEMBLY) 

    Refer to PROCEDURE - Step 9

  10. REMOVE AIR TUBE ASSEMBLY 
    Refer to REMOVAL [10/2022 - ]
  11. REMOVE AIR CLEANER CAP WITH NO. 1 AIR CLEANER HOSE 

    Refer to PROCEDURE - Step 11

  12. REMOVE NO. 2 VENTILATION HOSE 

    Refer to PROCEDURE - Step 12

  13. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    1. GTY1130101Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the fuel tube sub-assembly from the fuel (engine room side) pump assembly.

        Refer to PRECAUTION [10/2022 - ]

  14. 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. GTY1132685Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 1 fuel pipe sub-assembly.
      2. Loosen the 2 bolts of the fuel (engine room side) pump assembly.
      3. Remove the No. 1 fuel pipe sub-assembly from the fuel delivery pipe sub-assembly and fuel (engine room side) pump assembly.
  15. 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. GTY1129696Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. REMOVE FUEL PUMP SPACER GASKET 
    1. GTY1132827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE FUEL PUMP LIFTER ASSEMBLY 
    1. GTY1132828Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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