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Home >> Hummer >> 2009 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 6.2L - Introduction >> Repair Instructions >> Knock Sensor 1 Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: View Of Engine Harness Components
    GM1699536Courtesy of GENERAL MOTORS CORP.
  1. Lift and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the engine wiring harness electrical connector (4) from knock sensor.
    3. Fig 2: Identifying Knock Sensor & Bolt
    GM1402136Courtesy of GENERAL MOTORS CORP.
  3. Remove the knock sensor bolt (739) and knock sensor (718).
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