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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Engine Cooling System (Service Information) [A25A-FKS]) >> FLOW SHUTTING VALVE (for Heater) >> Removal [08/2020 - ] >> Procedure

Removal [08/2020 - ]: Procedure

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  1. REMOVE FLOW SHUTTING VALVE (NO. 1 WATER BY-PASS HOSE) 

    Refer to REMOVAL [08/2020 - ] 

  2. REMOVE FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 
    1. Disengage the clamp to disconnect the vacuum hose from the engine wire harness.
      GTY754111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the 3 connectors.
      GTY948436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disengage the clamp to disconnect the engine wire harness from the water hose clamp bracket.
    4. 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.
        GTY948646Courtesy 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.
    5. 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.
        GTY948503Courtesy 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 a plastic bag to prevent damage and contamination.
    6. Remove the bolt to disconnect the No. 2 water by-pass pipe sub-assembly.
      GTY948443Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Remove the bolt to disconnect the flow shutting valve (water by-pass hose assembly).
      GTY948444Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Disengage the 2 clamps to disconnect the wire harness.
      GTY948445Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Remove the 2 bolts and the water hose clamp bracket.
      GTY754091Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    10. Slide the clip and disconnect the flow shutting valve (water by-pass hose assembly) from the water by-pass outlet sub-assembly.
      GTY754096Courtesy 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.

    11. Slide the clip and disconnect the flow shutting valve (water by-pass hose assembly) from the transmission oil cooler.
      GTY754092Courtesy 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 transmission oil cooler.

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