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Home >> Chevrolet >> 2009 >> TrailBlazer 6.0 H, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Control System & Fuel System - 4.2L - Introduction) >> Repair Instructions >> Knock Sensor Replacement >> Installation Procedure
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Installation Procedure

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    Fig 1: Locating Knock Sensor Components
    GM727528Courtesy of GENERAL MOTORS CORP.
  1. Install the knock sensor (1 or 2) and the bolt (3). Tighten the sensor to 25 N.m (18 lb ft).
  2. Connect the knock sensor harness connector (4).
  3. Lower the vehicle.