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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Engine Controls - 3.9L - Introduction (2 Of 2)) >> Repair Instructions >> Engine Coolant Temperature 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.
    Fig 1: Removing/Installing ECT Sensor
    GM1586322Courtesy of GENERAL MOTORS CORP.
    NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM (STATIC FILL) .
  2. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM (STATIC FILL) .
  3. Remove the intake manifold cover, if necessary. Refer to INTAKE MANIFOLD COVER REPLACEMENT .
  4. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
  5. Remove the ECT sensor.
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