GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1888716  Size: SH
  1. Partially drain the cooling system. Refer to Cooling System Draining and Filling
  2. Reposition the underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement
  3. Disconnect the engine wiring harness electrical connector (10) from the engine coolant temperature (ECT) sensor (3).

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

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


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

  2. Object Number: 1888716  Size: SH
  3. Connect the engine wiring harness electrical connector (10) to the ECT sensor (3).
  4. Install the underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement
  5. Fill the cooling system. Refer to Cooling System Draining and Filling