GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1836029  Size: SH
  1. Partially drain the cooling system. Refer to Cooling System Draining and Filling.
  2. Disconnect the engine wiring harness electrical connector (4) from the engine coolant temperature (ECT) sensor.

  3. Object Number: 1836047  Size: SH
  4. Remove the ECT sensor.

Installation Procedure

    Caution: Refer to Component Fastener Tightening Caution in the Preface section.


    Object Number: 1836047  Size: SH
  1. Install the ECT sensor and tighten the sensor to 22 N·m (16 lb ft).

  2. Object Number: 1836029  Size: SH
  3. Connect the engine wiring harness electrical connector (4) to the ECT sensor.
  4. Fill the cooling system. Refer to Cooling System Draining and Filling.