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Home >> GMC >> 2001 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls - 4.3L - Repair Instructions) >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Removal Procedure

Removal 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. Turn OFF the ignition.
  2. Drain the cooling system below the level of the ECT sensor. Refer to Cooling System Draining and Filling in Engine Cooling.
    3. Fig 1: Locating Engine Coolant Temperature (ECT) Sensor Electrical Connector
    GM246797Courtesy of GENERAL MOTORS COMPANY
  3. Disconnect the ECT sensor harness connector.
    4. Fig 2: View Of ECT Sensor
    GM246800Courtesy of GENERAL MOTORS COMPANY
  4. Remove the ECT sensor.
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