Camry 2007

Engine Coolant Temperature Sensor

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Operation



Specific to:

Toyota Camry 2007-2008

A thermistor is built into the engine coolant temperature sensor, of which the resistance value varies according to the engine coolant temperature. The structure of the sensor and its connection to the ECM are the same as those of the intake air temperature sensor.

Removal & Installation



2.4L Engine

Specific to:

Toyota Camry 2007-2008

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Drain and recycle the engine coolant.
  6.  
  7. Remove the plastic engine cover.
  8.  
  9. Remove the air cleaner inlet assembly.
  10.  
  11. Remove the air cleaner cap sub-assembly.
  12.  
  13. Remove the air cleaner case sub-assembly.
  14.  
  15. Disconnect the ECT sensor connector.
  16.  
  17. Using Special Tool: 09817-33190, remove the engine coolant temperature sensor and gasket.

    Click image to see an enlarged view

    Fig. Removing the ECT sensor-2.4L Engine

  18.  

To install:

  1. Installation is the reverse of the removal procedure. Torque the engine coolant temperature sensor to 15 ft. lbs. (20 Nm).
  2.  
  3. Add coolant and check for leaks.
  4.  

3.5L Engine

Specific to:

Toyota Camry 2007-2008

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain engine coolant.
  4.  
  5. Remove V-bank cover sub-assembly.
  6.  
  7. Remove the air cleaner inlet assembly.
  8.  
  9. Remove the air cleaner cap sub-assembly.
  10.  
  11. Remove the air cleaner case sub-assembly.
  12.  
  13. Remove No. 1 air cleaner inlet.
  14.  
  15. Remove the engine coolant temperature sensor connector.
  16.  
  17. Using a19 mm deep socket wrench, remove the engine coolant temperature sensor and gasket.

    Click image to see an enlarged view

    Fig. Removing the ECT sensor-3.5L Engine

  18.  

To install:

  1. Installation is the reverse of the removal procedure. Torque the engine coolant temperature sensor to 15 ft. lbs. (20 Nm).
  2.  

Testing



Specific to:

Toyota Camry 2007-2008

  1. Using an ohmmeter, measure the resistance between the terminals:
    1. Condition:


    2.  
    3. 68°F (20°C) at 2.32 to 2.59 kilo ohms.
    4.  
    5. 176°F (80°C) at 0.310 to 0.326 kilo ohms.
    6.  

  2.  
  3. If the resistance is not as specified, replace the ECT sensor.
    NOTE
    When checking the engine coolant temperature sensor in water, do not allow water to go into the terminals. After checking, dry the sensor.



    Click image to see an enlarged view

    Fig. Coolant temperature sensor resistance

  4.  

 
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