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Home >> Kia >> 2012 >> Optima SX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 2.0L >> Engine Coolant Temperature Sensor (ECTS) >> Repair Procedures >> Inspection >> Removal

Repair Procedures: Inspection: 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 Component Location And Connector
    G07379724Courtesy 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
    G07379725Courtesy 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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