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Home › Chevrolet › 2004 › Optra Base, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - 2.0L (L34 GMDAT) - Repair Instructions › Repair Instructions › Knock Sensor Replacement › Installation Procedure

Installation Procedure

    Fig 1: View Of Knock Sensor And Mounting Bolt
    GM1256163Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  1. Install the knock sensor with the bolt.

    Tighten:  Tighten the knock sensor bolt to 20 N.m (15 lb ft)  .

    2. Fig 2: View Of Knock Sensor And Electrical Connector
    GM1256162Courtesy of GENERAL MOTORS CORP.
  2. Connect the electrical connector at the knock sensor.
  3. Lower the vehicle.
  4. Connect the negative battery cable.
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