Removal Procedure

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

Partially drain the engine coolant below the level of the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System in Engine Cooling.

Fig 1: View Of ECT Sensor, Electrical Connector & J 45861

Courtesy of GENERAL MOTORS CORP.

Disconnect the ECT sensor electrical connector (2) from the following:
- The engine wiring harness
- The camshaft cover (1)

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

Using the J 45861 (4) carefully remove the ECT sensor (3) from the cylinder head (5). See Special Tools .