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Home >> Chevrolet >> 2012 >> Sonic LS, 4D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 1.8L - Repair Instructions >> Repair Instructions >> Knock Sensor Replacement >> Removal Procedure
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Removal Procedure

  1. Disconnect the negative cable from the battery. Refer to Battery Negative Cable Disconnection and Connection .
    2. Fig 1: Intake Manifold Bracket
    GM2026538Courtesy of GENERAL MOTORS COMPANY
  2. Remove the 2 intake manifold bracket bolts (2, 3).
  3. Unclip the wiring harness.
  4. Remove the intake manifold bracket (1).
    5. Fig 2: Knock Sensor And Bracket
    GM2189291Courtesy of GENERAL MOTORS COMPANY
  5. Remove the sensor bolt (1).
  6. Disconnect the electrical wiring harness connector.
  7. Remove the knock sensor (2) from the bracket (3).
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