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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 185 (Engine Controls - 3.5L - Introduction (2 Of 2)) >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (Vac-N-Fill) 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.
  3. Disconnect the ECT sensor harness connector.
  4. Remove the ECT sensor.
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