GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Warning: Allow sufficient time for the engine to cool before removing the ECT sensor. A hot engine may cause an excessive coolant loss or a personal injury.

  1. Turn the ignition OFF.

  2. Object Number: 945424  Size: SH
  3. Remove the coolant temperature sensor electrical connector.

  4. Object Number: 1285193  Size: SH
  5. Remove the coolant temperature sensor.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1285193  Size: SH
  1. Install the coolant temperature sensor.
  2. Tighten
    Tighten the coolant temperature sensor to 22 N·m (16 lb ft).


    Object Number: 945424  Size: SH
  3. Install the coolant temperature sensor electrical connector.
  4. Inspect and fill the cooling system as necessary. Refer to Cooling System Draining and Filling.