GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Enclave 🢒 Engine 🢒 Engine Controls and Fuel - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Engine Coolant Temperature Sensor Replacement

Removal Procedure

    Object Number: 1858010 Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Slide the electrical connector heat shield up the wiring harness.
  3. Disconnect the engine wiring harness electrical connector (8) from the engine coolant temperature (ECT) sensor (9).

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

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1836047 Size: SH
  1. Install the ECT sensor.

    2. Tighten
    Tighten the sensor to 22 N·m (16 lb ft).


    Object Number: 1858010 Size: SH
  2. Connect the engine wiring harness electrical connector (8) to the ECT sensor (9).
  3. Slide the electrical connector heat shield down over the connector.
  4. Fill the cooling system. Refer to Cooling System Draining and Filling .