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Home >> Chevrolet >> 2009 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 5.3L - Introduction >> Repair Instructions >> Knock Sensor Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: Left Knock Sensor Electrical Connector
    GM1554554Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Cooling System Draining and Filling (9C1, 9C3 Static Fill) or Cooling System Draining and Filling (LZE, LZ4, LGD Static Fill) or Cooling System Draining and Filling (LZE, LZ4, LGD, 9C1, 9C3, GE47716 Fill) .
  2. Disconnect the left knock sensor electrical connector, if required.
    3. Fig 2: Left Knock Sensor
    GM1551881Courtesy of GENERAL MOTORS CORP.
  3. Remove the left knock sensor bolt, if required.
  4. Remove the left knock sensor, if required.
    5. Fig 3: Crankshaft Position (CKP) Sensor Electrical Connector
    GM1554552Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the right knock sensor electrical connector (2), if required.
    6. Fig 4: Right Knock Sensor
    GM1551882Courtesy of GENERAL MOTORS CORP.
  6. Remove the right knock sensor bolt, if required.
  7. Remove the right knock sensor, if required.
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