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Home >> Buick >> 2005 >> Rendezvous Ultra, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.6L - Introduction >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure

Removal Procedure

CAUTION: Allow sufficient time for the engine to cool before removing the ECT sensor. A hot engine may cause an excessive coolant loss or a personal injury.
  1. Turn the ignition OFF.
  2. Partially drain the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
    3. Fig 1: Locating Coolant Temperature Sensor Electrical Connector
    GM1394058Courtesy of GENERAL MOTORS CORP.
  3. Remove the coolant temperature sensor electrical connector.
    4. Fig 2: Coolant Temperature Sensor
    GM1394088Courtesy of GENERAL MOTORS CORP.
  4. Remove the coolant temperature sensor.
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