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

    Object Number: 1289410 Size: SH
  1. Relieve the coolant system pressure.

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

  2. Disconnect the negative battery cable.
  3. Disconnect the engine coolant temperature (ECT) sensor connector.

    4. Caution: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

  4. Remove the ECT sensor.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1289410 Size: SH
  1. Install the ECT sensor and tighten to 17.5 N·m (13 lb ft).
  2. Connect the ECT sensor connector.
  3. Connect the negative battery cable.