Removal Procedure

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

Fig 1: View Of ECT Sensor

Courtesy of GENERAL MOTORS CORP.

Turn OFF the ignition.
Drain the coolant system to below the ECT sensor. Refer to Draining and Filling Cooling System (L61) in Engine Cooling.
Disconnect the engine coolant temperature (ECT) sensor electrical connector.
Carefully remove the ECT sensor.