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Home >> Chevrolet >> 2009 >> Chevy Express G1500, Van Cargo, 4.3 X >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.3L - Introduction >> Repair Instructions >> Knock Sensor 2 Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of Knock Sensor & Bolt
    GM1877020Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  1. Position the knock sensor to the engine block and install the bolt and tighten to 25 N.m (18 lb ft).
  2. Fig 2: Identifying Engine Wiring Harness Electrical Connector At Knock Sensor
    GM1950126Courtesy of GENERAL MOTORS CORP.
  3. Connect the engine wiring harness electrical connector to the knock sensor (1).
  4. Position the knock sensor sleeve (2) up and over the knock sensor.
  5. Lower the vehicle.