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Home >> Kia >> 2016 >> Optima Hybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (HEV) >> Knock Sensor (KS) >> Repair Procedures >> Removal
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Repair Procedures: Removal

  1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
  2. Drain the engine coolant. (Refer to Refilling And Bleeding . ).
  3. Remove the radiator upper hose. (Refer to Repair Procedures . )
  4. Disconnect the knock sensor connector (A).
    Fig 1: Locating Knock Sensor Connector
    G11815762Courtesy of KIA MOTORS AMERICA, INC.
  5. Remove the intake manifold. (Refer to Removal And Installation .)
  6. Remove the mounting bolt (A), and then remove the sensor from the cylinder block.
Fig 2: Locating Knock Sensor Mounting Bolt
G11815763Courtesy of KIA MOTORS AMERICA, INC.
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