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Home >> Hyundai >> 2014 >> Sonata Hybrid Limited >> 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 (-) cable.
  2. Drain the engine coolant (Refer to "COOLING SYSTEM ").
  3. Remove the radiator upper hose (Refer to "COOLING SYSTEM ").
  4. Disconnect the knock sensor connector (A).
    Fig 1: Identifying Knock Sensor Connector
    G07744134Courtesy of HYUNDAI MOTOR CO.
  5. Remove the intake manifold (Refer to "INTAKE AND EXHAUST SYSTEM ").
  6. Remove the installation bolt (A), and then remove the sensor from the cylinder block.
    Fig 2: Identifying Knock Sensor Installation Bolt
    G07744135Courtesy of HYUNDAI MOTOR CO.
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