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Home › Buick › 2005 › Allure CX › Repair and Diagnosis › Engine Performance › System › Engine Control System - 3.8L - Introduction (2 Of 2) › Repair Instructions › Engine Coolant Temperature (ECT) Sensor Replacement › Removal Procedure

Removal Procedure

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. Partially drain the cooling system. Refer to Draining and Filling Cooling System (LY7) or Draining and Filling Cooling System (L26) in Engine Cooling.
  2. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
    3. Fig 1: Removing/Installing ECT Sensor
    GM186069Courtesy of GENERAL MOTORS CORP.
  3. Remove the ECT sensor.
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