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Home >> Buick >> 2011 >> Lucerne CX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.9L - Repair Instructions >> 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: View Of ECT
    GM1586322Courtesy of GENERAL MOTORS COMPANY
  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) , Cooling System Draining and Filling (Static Fill) .
  2. Remove the intake manifold cover, if necessary. Refer to Intake Manifold Cover Replacement .
  3. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
  4. Remove the ECT sensor.
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