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Home >> Cadillac >> 2005 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure
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Removal Procedure

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
    Fig 1: Identifying ECT Sensor Harness Connector
    GM256283Courtesy of GENERAL MOTORS CORP.
  1. Turn OFF the ignition
  2. Drain the coolant to below the level of the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System in Engine Cooling.
  3. Disconnect the ECT sensor harness connector (1).
  4. Remove the ECT sensor.
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