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Home >> Buick >> 2005 >> LeSabre Custom, 4T65E/M15 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure

Removal Procedure

IMPORTANT: Use care when handling the coolant sensor. Damage to the sensor will effect proper operation of the fuel control system.
  1. Turn OFF the ignition.
  2. Drain the coolant below the level of the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System in Engine Coolant.
  3. Disconnect the sensor electrical connector.
    4. Fig 1: Removing ECT Sensor
    GM186069Courtesy of GENERAL MOTORS CORP.
  4. Carefully remove the ECT sensor.
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