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

Removal Procedure

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


    Object Number: 1962428 Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the engine cover. Refer to Engine Cover Replacement.

    3. Object Number: 1820589 Size: SH
  3. Disconnect the engine coolant temperature (ECT) sensor connector.
  4. Remove the ECT sensor.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1820589 Size: SH
  1. Install the ECT sensor.

    2. Tighten
    Tighten the ECT sensor to 35 N·m (25.8 lb ft).

  2. Connect the ECT sensor.

    3. Object Number: 1962428 Size: SH
  3. Install the engine cover. Refer to Engine Cover Replacement.
  4. Connect the negative battery cable.