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Home >> Saturn >> 2005 >> Relay AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.5L - Introduction (2 Of 2) >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure
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Removal Procedure

  1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System in Engine Cooling.
  2. Remove the air intake duct. Refer to Air Cleaner Intake Duct Replacement .
  3. Fig 1: Identifying Engine Coolant Temperature (ECT) Sensor
    GM1087791Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the ECT sensor harness connector.
  5. Remove the ECT sensor.