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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Engine Control System - 3.8L - 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 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. Partially drain the cooling system. Refer to Draining and Filling Cooling System (LY7) or Draining and Filling Cooling System (L26) in Engine Cooling.
  2. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
    3. Fig 1: Removing/Installing ECT Sensor
    GM186069Courtesy of GENERAL MOTORS CORP.
  3. Remove the ECT sensor.
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