Tucson 2006-2008

Oil Temperature Sensor

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Operation



Specific to:

Hyundai Tucson 2006-2008

The Engine Oil Temperature (EOT) sensor is a negative coefficient thermistor used by the ECM to measure engine oil temperature for the purpose of adjusting Continuously Variable Valve Timing (CVVT) calculations.

Click image to see an enlarged view

Fig. Engine Oil Temperature (EOT) sensor cut-away view

Removal & Installation



Specific to:

Hyundai Tucson 2006-2008

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the ground cable from the battery and then remove the sensor connector.
  4.  
  5. Remove Engine Oil Temperature (EOT) sensor.
  6.  

To install:

  1. Install the EOT sensor and tighten to 15-29 ft. lbs. (20-39 Nm).
  2.  
  3. Connect the negative cable to the battery.
  4.  
  5. Run the engine and check for leaks.
  6.  

Testing



Specific to:

Hyundai Tucson 2006-2008

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  

Check the resistance of the Engine Oil Temperature (EOT) sensor.

  1. With the ignition ON and the engine OFF, monitor the Oil Temperature parameter on a scan tool.
  2.  
  3. With the ignition OFF and the engine OFF, disconnect EOT sensor connector.
  4.  
  5. Measure resistance between terminal 1 and 2 of EOT sensor connector (Component Side).
  6.  
  7. The specifications should be as listed in the following table.
  8.  
  9. If the EOT sensor does not meet the specifications, replace the EOT sensor.

    Click image to see an enlarged view

    Fig. Engine Oil Temperature (EOT) sensor Temperature and Resistance Table



    Click image to see an enlarged view

    Fig. Engine Oil Temperature (EOT) sensor connector end view and schematic diagram

  10.  

 
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