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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Engine Cooling System (A25A-FXS) - Service Information) >> Flow Shutting Valve >> Removal [06/2018 - 08/2020] >> Procedure

Removal [06/2018 - 08/2020]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE INVERTER WITH CONVERTER ASSEMBLY 

    Refer to REMOVAL [06/2018 - 08/2020]

  2. DRAIN ENGINE COOLANT (for Engine) 

    Refer to PROCEDURE - Step 1

  3. REMOVE FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 
    1. Disconnect the flow shutting valve (water by-pass hose assembly) connector.
      GTY768513Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the outlet heater hose connector from the No. 2 water by-pass pipe sub-assembly.
      NOTE:

      Remove any foreign matter on the No. 2 water by-pass pipe sub-assembly and outlet heater hose connector before performing this work.

      1. Pull out the retainer to disengage the lock claws and pull off the outlet heater hose connector.
        GTY744416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Retainer
        Pull out
        Pull off
      2. Check that there is no foreign matter on the sealing surfaces of the disconnected water lines. Clean them if necessary.
      3. Cover the disconnected No. 2 water by-pass pipe sub-assembly and outlet heater hose connector with plastic bags to prevent damage and contamination.
    3. Disconnect the inlet heater hose connector from the flow shutting valve (water by-pass hose assembly).
      NOTE:

      Remove any foreign matter on the flow shutting valve (water by-pass hose assembly) and inlet heater hose connector before performing this work.

      1. Pull out the retainer to disengage the lock claws and pull off the inlet heater hose connector.
        GTY746392Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Retainer
        Pull out
        Pull off
      2. Check that there is no foreign matter on the sealing surfaces of the disconnected water lines. Clean them if necessary.
      3. Cover the disconnected inlet heater hose connector with plastic bag to prevent damage and contamination.
    4. Remove the bolt to disconnect the No. 2 water by-pass pipe sub-assembly.
      GTY761114Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the bolt to disconnect the flow shutting valve (water by-pass hose assembly).
      GTY773061Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Remove the bolt and wire harness clamp bracket.
      GTY754159Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Slide the clip and disconnect the flow shutting valve (water by-pass hose assembly) from the water by-pass outlet sub-assembly.
      GTY761112Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Use a container to catch any engine coolant which flows out of the flow shutting valve (water by-pass hose assembly) and water by-pass outlet sub-assembly.

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