Hyundai_Tucson_2005

Coolant Temperature Sensor

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Location



The ECT is installed in the engine coolant passage of the cylinder head.

Operation



This component detects the temperature of the engine coolant and relays the information to the electronic control assembly. This component employs a thermistor which is sensitive to temperature changes. The electric resistance of the thermistor decreases in response to temperature rise. The ECM judges coolant temperature by the sensor output voltage and provides optimum fuel enrichment when the engine is cold.

 
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