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Home >> Buick >> 2009 >> Lucerne CX, 3.9 1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.9L - Introduction >> Repair Instructions >> Knock Sensor Replacement - Bank 2 >> Installation Procedure

Installation Procedure

    Fig 1: Removing/Installing Knock Sensor
    GM1587771Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution
    NOTE: DO NOT apply thread sealant to the sensor threads. The sensor threads are coated at the factory. Applying additional sealant affects the sensors ability to detect detonation.
  1. Install and tighten the knock sensor (2) to 25 N.m (18 lb ft).
    2. Fig 2: Identifying Electrical Connectors
    GM1608498Courtesy of GENERAL MOTORS CORP.
  2. Connect the knock sensor electrical connector (2).
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