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Home >> Kia >> 2011 >> Optima LX, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 2.4L >> Engine Coolant Temperature Sensor (ECTS) >> Repair Procedures >> Removal
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Repair Procedures: Removal

  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Disconnect the engine coolant temperature sensor connector (A).
    Fig 1: Engine Coolant Temperature Sensor Connector
    G07381654Courtesy of KIA MOTORS AMERICA, INC.
  3. Remove the spring clip (A), and then pull the sensor from the water temperature control assembly.
    Fig 2: Spring Clip
    G07381655Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: Note that engine coolant may be flowed out from the water temperature control assembly when removing the sensor.
  4. Supplement the engine coolant. Refer to COOLING SYSTEM .
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