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Installation [10/2015 - ]: Procedure

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  1. INSTALL THERMOSTAT 
    1. Install a new gasket to the thermostat.
    2. Install the thermostat to the water inlet housing sub-assembly.
      GTY675861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Jiggle Valve

      HINT: 

      The jiggle valve may be set within 10° on either side of the prescribed position.

  2. INSTALL WATER INLET 
    1. Install the water inlet with the 2 bolts and nut.

      Torque: 11 N*m (112 kgf*cm, 8 ft.*lbf) 

    2. Engage the 3 clamps to connect the wire harness to the water inlet.
  3. CONNECT NO. 4 RADIATOR HOSE 
    1. Connect the No. 4 radiator hose to the water inlet and slide the clip to secure it.
  4. INSTALL ENGINE ROOM ECU BOX 
    1. Install the engine room ECU box with the 2 bolts and nut.

      Bolt 

      Torque: 12.5 N*m (127 kgf*cm, 9 ft.*lbf) 

      Nut 

      Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) 

    2. Engage the claw to connect the connector holder to the engine room ECU box.
    3. Engage the claw to connect the engine wire harness to the engine room ECU box.
    4. Connect the 3 connectors to the connector holder.
  5. INSTALL RADIATOR HOSE SUB-ASSEMBLY 

    See step  7 [10/2015 - 11/2017], or see step  7 [11/2017 - ]

  6. INSTALL ENGINE ROOM ECU OUTLET DUCT 

    See step  10 [10/2015 - 11/2017], or see step  10 [11/2017 - ]

  7. INSTALL ECM 

    Refer to INSTALLATION [10/2015 - ]

  8. ADD ENGINE COOLANT 

    See step  3

  9. INSPECT FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 1

  10. INSTALL CENTER NO. 4 ENGINE UNDER COVER 

    See step  5