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Home >> Chevrolet >> 2009 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 5.3L - 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: ECT Sensor Electrical Connector
    GM1554549Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system below the level of the engine coolant temperature (ECT) sensor. Refer to Cooling System Draining and Filling (9C1, 9C3 Static Fill) or Cooling System Draining and Filling (LZE, LZ4, LGD Static Fill) or Cooling System Draining and Filling (LZE, LZ4, LGD, 9C1, 9C3, GE47716 Fill) .
  2. Disconnect the ECT sensor electrical connector (1).
    3. Fig 2: Locating ECT Sensor
    GM50974Courtesy of GENERAL MOTORS CORP.
  3. Remove the ECT sensor.
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