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Home >> Pontiac >> 2005 >> Grand Prix GXP >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 5.3L - 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: 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 Draining and Filling Cooling System (L26 and L32) or Draining and Filling Cooling System (LS4) .
  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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