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Home >> Hyundai >> 2011 >> Sonata Hybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - HEV >> Knock Sensor (KS) >> Repair Procedures >> Removal

Repair Procedures: Removal

  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Drain the engine coolant (Refer to "COOLING SYSTEM " in EM group).
  3. Remove the radiator upper hose (Refer to "COOLING SYSTEM " in EM group).
  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 " in EM group).
  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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