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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 1 Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of Knock Sensor & Bolt
    GM1877015Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  1. Position the knock sensor to the engine block and install the bolt. Tighten to 25 N.m (18 lb ft)
    2. Fig 2: Identifying Knock Sensor Wiring Harness Electrical Connector
    GM1950124Courtesy of GENERAL MOTORS CORP.
  2. Connect the engine wiring harness electrical connector (1) to the knock sensor.
  3. Position the knock sensor sleeve up and over the knock sensor, if equipped.
  4. Lower the vehicle.
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