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Home >> Kia >> 2017 >> Optima EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Control System - 2.0L (Except HEV)) >> Engine Coolant Temperature Sensor (ECTS) >> Repair Procedures >> Removal

Repair Procedures: Removal

WARNING: This page is about a different car, the 2018 Kia Optima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
  2. Remove the battery.

    (Refer to Engine Electrical System - "BATTERY ")

  3. Remove the air cleaner.

    (Refer to Engine Mechanical System - "AIR CLEANER ")

  4. Disconnect the engine coolant temperature sensor connector (A).
    Fig 1: Disconnecting Engine Coolant Temperature Sensor Connector
    G12145703Courtesy of KIA MOTORS AMERICA, INC.
  5. Remove the spring clip (A), and then pull the sensor from the water temperature control assembly.
    Fig 2: Removing Spring Clip
    G12145704Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: Note that engine coolant may be flowed out from the water temperature control assembly when removing the sensor.