GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 Torrent 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Coolant Temperature Sensor Replacement

Removal Procedure

    Object Number: 1087791 Size: SH
  1. Drain the engine coolant to a level below the engine coolant temperature (ECT) sensor. Refer to Cooling System Draining and Filling .
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  3. Disconnect the ECT sensor harness connector.
  4. Remove the ECT sensor.

Installation Procedure

    Important: Tap out sensor mounting hole in engine head to remove any thread sealant residue. Clean any sealant residue from old sensor if the sensor is going to be reused.


    Object Number: 1087791 Size: SH
  1. If the sensor is being reused, apply thread sealant GM P/N 12345382 (Canadian P/N 10953489) or equivalent, to sensor threads .

    2. Notice: Refer to Component Fastener Tightening Notice in the Preface section.

  2. Install the ECT sensor.

    3. Tighten
    Tighten the sensor to 23 N·m (17 lb ft).

  3. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then pull back to confirm a positive engagement.
  4. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  5. Fill the engine cooling system to proper level. Refer to Cooling System Draining and Filling .