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Home >> Hyundai >> 2007 >> Sonata GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (G4KC-GSL 2.4) >> Gasoline Engine Control System >> Engine Coolant Temperature Sensor (ECTS) >> Description >> Sensor Inspection

Sensor Inspection

  1. Remove the Engine Coolant Temperature Sensor (ECTS) from the engine block.
  2. With the temperature sensing portion of Engine Coolant Temperature Sensor (ECTS) immersed in hot engine coolant, measure resistance between the terminals 1 and 3 of ECTS connector.
    TEMPERATURE SPECIFICATIONS

    Temperature [°C (°F)] Resistance (kΩ)
    0 (32) 5.79
    20 (68) 2.31 ~ 2.59
    40 (104) 1.15
    80 (176) 0.32
    Fig 1: Checking Engine Coolant Temperature Sensor
    G04890843Courtesy of HYUNDAI MOTOR CO.
  3. If the resistance deviates from the standard value greatly, replace the sensor.
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