Removal Procedure

WARNING: This page is about a different car, the 2005 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

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

Turn OFF the ignition.

Fig 1: View of ECT Sensor Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Drain the cooling system below the level of the ECT sensor. Refer to Draining and Filling Cooling System in Engine Cooling.
Disconnect the electrical connector from the engine coolant temperature (ECT) sensor.

Fig 2: Locating ECT Sensor

Courtesy of GENERAL MOTORS CORP.

Remove the ECT sensor.