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Home › Kia › 2015 › Optima Hybrid › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Control System - Optima HEV › Engine Coolant Temperature Sensor (ECTS) › Repair procedures › Removal

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
    G08312847Courtesy of KIA MOTORS AMERICA, INC.
  3. Remove the fixing clip (A), and then pull the sensor from the water temperature control assembly.
    Fig 2: Sensor Fixing Clip
    G08312848Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: Note that engine coolant may flow out from the water temperature control assembly when removing the sensor.
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