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Home >> Cadillac >> 2009 >> STS V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 4.4L - Introduction >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Removal Procedure
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Removal Procedure

CAUTION: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
    Fig 1: View Of ECT Sensor Harness Connector
    GM887908Courtesy of GENERAL MOTORS CORP.
  1. Turn OFF the ignition
  2. Remove the rear supercharger inlet duct assembly. Refer to Supercharger Inlet Duct Assembly Replacement .
  3. Drain the coolant to below the level of the engine coolant temperature (ECT) sensor. Refer to Cooling System Draining and Filling (GE 47716) or Cooling System Draining and Filling (Static Fill) .
  4. Disconnect the ECT sensor harness connector.
    5. Fig 2: View Of ECT Sensor
    GM1247897Courtesy of GENERAL MOTORS CORP.
  5. Remove the ECT sensor.
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