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Home >> Kia >> 2017 >> Optima SX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Engine Control System - 2.4L (Except HEV)) >> Engine Coolant Temperature Sensor (ECTS) >> Repair Procedures >> Removal

Repair Procedures: Removal

WARNING: This page is about a different variant/trim than selected.
  1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
  2. Remove the air cleaner.

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

  3. Disconnect the engine coolant temperature sensor connector (A).
    Fig 1: Disconnecting Engine Coolant Temperature Sensor Connector
    G12146856Courtesy of KIA MOTORS AMERICA, INC.
  4. Remove the spring clip (A), and then pull the sensor from the water temperature control assembly.
    CAUTION: Note that engine coolant may be flowed out from the water temperature control assembly when removing the sensor.
Fig 2: Locating Spring Clip
G12146857Courtesy of KIA MOTORS AMERICA, INC.
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