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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Controls - 6.6L - Introduction (2 Of 2)) >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. If installing the old sensor, coat the threads with sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 1: Locating Coolant Temperature Sensor
    GM1409328Courtesy of GENERAL MOTORS CORP.
  2. Install the ECT sensor (1).

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

    3. Fig 2: View Of Engine Coolant Temperature Sensor And Electrical Connector
    GM1335413Courtesy of GENERAL MOTORS CORP.
  3. Connect the ECT sensor electrical connector.
  4. Fill the cooling system, if necessary. Refer to Draining and Filling Cooling System (w/RPO HP2) or Draining and Filling Cooling System (w/o RPO HP2) in Engine Cooling.
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