LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2014 >> Highlander XLE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Engine Cooling System (2GR-FKS) (Service Information) (Except Hybrid)) >> Thermostat >> Inspection [11/2016 - ] >> Procedure

Inspection [11/2016 - ]: Procedure

WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY 
    1. Check the valve opening.

      HINT: 

      The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.

      GTY668827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Add 15 cc (0.9 cu. in.) of water to the water inlet with thermostat sub-assembly from the inlet pipe side.
        GTY634529Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Inlet Pipe Side
        *b Valve Side
      2. Confirm that water does not flow out from the valve side of the water inlet with thermostat sub-assembly.

        If water flows out from the valve side of the water inlet with thermostat sub-assembly, replace the water inlet with thermostat sub-assembly with a new one.

      3. Immerse the water inlet with thermostat sub-assembly in water that is between 92°C (198°F) and 96°C (205°F) for 5 minutes or more.
        NOTE:
        • Do not allow any water to come into contact with the connector of the water inlet with thermostat sub-assembly.
        • Make sure that the end of the inlet pipe of the water inlet with thermostat sub-assembly is not facing downward.
        • Make sure to immerse the water inlet with thermostat sub-assembly in the water as shown in the illustration.
        GTY633309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Connector
        *b Inlet Pipe
        Temperature Sensor
      4. Leave the water inlet with thermostat sub-assembly at ambient temperature for 5 minutes so that the valve closes.
        NOTE:

        Make sure that the end of the inlet pipe of the water inlet with thermostat sub-assembly is not facing downward.

        GTY649353Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Inlet Pipe
      5. Check that the water that was added to the water inlet with thermostat sub-assembly has completely flowed out.

        If the water that was added to the water inlet with thermostat sub-assembly has not completely flowed out, replace the water inlet with thermostat sub-assembly with a new one.

    2. Check the resistance of the temperature sensor.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        1 - 2 Always 10.6 to 14.2 Ω

        If the result is not as specified, replace the water inlet with thermostat sub-assembly.

scientia non olet · About LEMON Manuals