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Home >> Chevrolet >> 2009 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls And Fuel - 3.9L - Introduction) >> Repair Instructions >> Knock Sensor Replacement - Bank 1 >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
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.
    Fig 1: Removing/Installing Knock Sensor
    GM1587771Courtesy of GENERAL MOTORS CORP.
  1. Install and tighten the knock sensor (1).

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

    2. Fig 2: Identifying Electrical Connector
    GM1612884Courtesy of GENERAL MOTORS CORP.
  2. Connect the knock sensor electrical connector (1).
  3. Install the catalytic converter. Refer to Catalytic Converter Replacement (With LZE, NU6 and PZEV) .
  4. Lower the vehicle.
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