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Home >> Buick >> 2011 >> Regal CXL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.4L - Repair Instructions >> Repair Instructions >> Knock Sensor Replacement (LE5, LE9 Or LAF) >> Installation Procedure
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Installation Procedure

    Fig 1: Knock Sensor
    GM1578476Courtesy of GENERAL MOTORS CORP.
  1. Install the knock sensor.
    2. CAUTION: Refer to Fastener Caution .
  2. Install the knock sensor bolt.

    Tighten:  Tighten the bolt to 25 N.m (18 lb ft).

    3. Fig 2: Starter And Engine Electrical Connectors
    GM1809558Courtesy of GENERAL MOTORS CORP.
    NOTE: Rotate the knock sensor electrical connector 90 degrees from vertical before securing the fastener.
  3. Install the knock sensor electrical connector (4) to the oil level indicator tube bracket.
  4. Connect the engine wiring harness electrical connector (3) to the knock sensor electrical connector (4).
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