Engine Coolant Temperature Sensor Replacement - Radiator

Fig 1: Engine Coolant Temperature Sensor - Radiator

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Drain the cooling system. Refer to Cooling System Draining and Filling . Remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement (Front) , Front Wheelhouse Liner Replacement (Rear) and Front Wheelhouse Liner Replacement (with WFK) .
1	Engine Coolant Temperature Sensor Retainer
2	Engine Coolant Temperature Sensor Seal Procedure Discard the old seal and replace with a NEW seal if not replacing the sensor.
3	Engine Coolant Temperature Sensor Procedure Disconnect the engine coolant temperature sensor radiator mounted electrical sensor. Inspect and clean the radiator prior to installation.