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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls - 8.1L - Introduction (2 Of 2)) >> Repair Instructions >> Knock Sensor (KS) 1 Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Drain the cooling system/engine block. Refer to Draining and Filling Cooling System (w/RPO HP2) or Draining and Filling Cooling System (w/o RPO HP2) in Engine Cooling.
  2. Disconnect the knock sensor electrical connector (4).
    Fig 1: Disconnecting Knock Sensor (KS) 1 Electrical Connector
    GM1236369Courtesy of GENERAL MOTORS CORP.
  3. Remove the knock sensor.
    Fig 2: Removing Knock Sensor (KS) 1
    GM858224Courtesy of GENERAL MOTORS CORP.
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