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Removal Procedure

WARNING: This page is about a different car, the 2010 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
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 Engine Wiring Harness Electrical Connectors
    GM1889684Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill-LY7, LZE, LZ4) or Cooling System Draining and Filling (GE 47716) .
  2. Disconnect the engine wiring harness electrical connector (1) from the engine coolant temperature (ECT) sensor (2).
    3. Fig 2: Identifying ECT Sensor & Thermostat Housing
    GM1889685Courtesy of GENERAL MOTORS CORP.
  3. Remove the ECT sensor (1) from the thermostat housing.
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