Removal Procedure

Fig 1: Engine Coolant Temperature Sensor Connector

Courtesy of GENERAL MOTORS COMPANY

WARNING:

Allow sufficient time for the engine to cool before removing the ECT sensor. A hot engine may cause an excessive coolant loss or a personal injury.

Drain the engine coolant. Refer to Cooling System Draining and Filling .
Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
Disconnect the engine coolant temperature sensor connector (2).
Remove the engine coolant temperature sensor (1).