Fuel Pump Removal

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fse Fuel. Lexus Gs430, Gs300. Uzs190 Grs190

  1. DISCHARGE FUEL SYSTEM PRESSURE

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  3. REMOVE REAR SEAT CUSHION ASSEMBLY

  4. REMOVE ROOM NO. 3 PARTITION PAD

  5. REMOVE REAR FLOOR NO. 2 SERVICE HOLE COVER

  6. REMOVE FUEL SUCTION WITH PUMP AND GAUGE ASSEMBLY

Fuel Pump -- Removal



1. DISCHARGE FUEL SYSTEM PRESSURE
CAUTION:
  1. Do not disconnect any part of the fuel system until you have discharged the fuel system pressure.
  2. Even after discharging the fuel pressure, place a shop rag over fittings as you separate them to reduce the risk of fuel spray on yourself or in the engine compartment.

  1. Disconnect the cable from the negative (-) battery terminal.

    NOTICE:
    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Fuel.Fuel System.Fuel Pump Removal

  1. Disconnect the fuel pump connector.

  1. Connect the cable to the negative (-) battery terminal.

  1. Start the engine. After the engine has stopped on its own, turn the engine switch off.

    HINT:
    DTC P0171/P0172 (system too lean) may be set.

  1. Crank the engine again, then check that the engine does not start.

  1. Loosen the fuel tank cap, then discharge the pressure in the fuel tank completely.

  1. Connect the fuel pump connector.



2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.


3. REMOVE REAR SEAT CUSHION ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Fuel.Fuel System.Fuel Pump Removal

  1. Detach the seat cushion's 2 front hooks from the vehicle body.

    NOTICE:
    Follow the instructions below carefully as the cushion frame deforms easily.

    1. Choose a hook to detach first. Place your hands near the hook as shown in the illustration. Then lift the seat cushion to detach the hook.

    2. Repeat for the other hook.

  1. Detach the seat cushion's 2 rear hooks from the seatback.

  1. Remove the seat cushion.



4. REMOVE ROOM NO. 3 PARTITION PAD


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Fuel.Fuel System.Fuel Pump Removal

  1. Remove the clip and room partition pad.



5. REMOVE REAR FLOOR NO. 2 SERVICE HOLE COVER


Lexus Gs430, Gs300. Uzs190 Grs190

  1. Remove the service hole cover and disconnect the fuel pump connector.



6. REMOVE FUEL SUCTION WITH PUMP AND GAUGE ASSEMBLY


  1. Disconnect the fuel tank main tube and pump tube.



      Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Fuel.Fuel System.Fuel Pump Removal

    1. Remove the 2 tube joint clips and fuel tubes.

      NOTICE:
      1. Remove any dirt and foreign matter on the fuel tube joint before performing this work.
      1. Do not allow any scratches or foreign matter on the parts when disconnecting them, as the fuel tube joint has the O-rings that seal the plug.
      1. Perform this work by hand. Do not use any tools.
      1. Do not forcibly bend, twist or turn the nylon tube.
      1. Protect the disconnected part by covering it with a plastic bag and tape after disconnecting the fuel tubes.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Fuel.Fuel System.Fuel Pump Removal

  1. Using a 6 mm socket, set SST to the fuel pump gauge retainer.

    SST
    09808-14020
    NOTICE:
    Do not use any other tools such as a screwdriver.
    HINT:
    Fit the tips of SST on the ribs of the retainer.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Fuel.Fuel System.Fuel Pump Removal

  1. While holding the SST by hand, remove the fuel pump gauge retainer.



    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Fuel.Fuel System.Fuel Pump Removal

  1. Disconnect the fuel suction tube.

  1. Remove the fuel suction tube from the fuel tank.

    NOTICE:
    1. Make sure that the sender gauge arm does not bend.
    1. Do not damage the fuel sub-suction tube.