GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Aveo 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Coolant Temperature Sensor Replacement

Removal Procedure

    Object Number: 2042524 Size: SH

    Note: Use care when handling the ECT sensor. Damage to the sensor will affect the proper operation of the fuel injection system.

  1. Relieve the coolant system pressure and remove the coolant. Refer to Cooling System Draining and Filling

    2. Warning: Refer to Battery Disconnect Warning in the Preface section.

  2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
  3. Disconnect the engine coolant temperature (ECT) sensor connector (1).
  4. Carefully remove the ECT sensor (2).

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2042524 Size: SH
  1. Install the ECT sensor (2) and tighten to 17.5 N·m (12.9 lb ft).
  2. Connect the engine coolant temperature (ECT) sensor connector (1).
  3. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
  4. Fill the cooling system. Refer to Cooling System Draining and Filling.