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Home >> Toyota >> 2019 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System (3UR-FE) (Service Information) >> Thermostat >> Installation [08/2015 - ] >> Procedure

Installation [08/2015 - ]: Procedure

  1. INSTALL INLET WATER SUB-ASSEMBLY WITH THERMOSTAT 
    1. Install a new gasket and the water inlet with thermostat with the 3 nuts.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

      GTY610766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. CONNECT NO. 5 WATER BY-PASS HOSE 
    GTY577240Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the No. 5 water by-pass hose.

      HINT: 

      Install the hose so that the direction of the hose clamp is as indicated in the illustration.

  3. CONNECT OUTLET RADIATOR HOSE 

    See step  9

  4. INSTALL AIR PIPE SUB-ASSEMBLY 
    1. Install the air pipe with the bolt.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

      GTY611654Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the connector and install the wire harness with the 2 clamps.
  5. CONNECT NO. 2 AIR INJECTION SYSTEM HOSE 
    GTY542723Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the No. 2 air injection hose.
    2. Attach the wire harness clamp.
    3. Connect the air pump connector.
  6. CONNECT NO. 3 AIR INJECTION SYSTEM HOSE 
    GTY565866Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the No. 3 air injection hose.
  7. ADD ENGINE COOLANT 

    See step  3

  8. INSPECT FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 1

  9. INSTALL V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 16

  10. INSTALL NO. 1 ENGINE UNDER COVER 

    Refer to

    PROCEDURE - Step 12 [08/2015 - 08/2019] , or refer to

    PROCEDURE - Step 12 [08/2019 - 08/2021] , or refer to

    PROCEDURE - Step 12 [08/2021 - ]

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