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Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 1: Knock Sensor (KS) 1
    GM858224Courtesy of GENERAL MOTORS CORP.
  1. Install the knock sensor.

    Tighten:  Tighten the sensor to 20 N.m (15 lb ft)

  2. Fig 2: Knock Sensor (KS) 1 Electrical Connector
    GM1236369Courtesy of GENERAL MOTORS CORP.
  3. Connect the knock sensor electrical connector (4).
  4. Fill the cooling system/engine block. Refer to Draining and Filling Cooling System (with HP2) or Draining and Filling Cooling System (without HP2) in Engine Cooling.