Coolant Temperature Sensor — Check (Hyundai Elantra J1)

Remove the coolant temperature sensor.

Place the sensitive element of the sensor in hot water and measure the resistance.



Nominal value:

• 2.1-2.7 kOhm (at 20°C);
• 0.26-0.36 kOhm (at 80°C).

If the resistance value differs from the nominal value, replace the sensor.

Apply sealant to the sensor threads.



Once the coolant temperature sensor is in place, tighten it and connect the connector to the sensor.