Installation Procedure

Fig 1: ECT Sensor

Courtesy of GENERAL MOTORS CORP.

NOTE: Use a tap in order to remove any sealant residue in the sensor hole in the thermostat housing. Clean any sealant residue from the old sensor (if reusing) and apply the room temperature vulcanizing (RTV) sealant to the threads.

Apply sealant to the threads of the ECT sensor. Refer to Adhesives, Fluids, Lubricants, and Sealers .

CAUTION: Refer to Fastener Caution .

Install the ECT sensor.
Tighten: Tighten the sensor to 20 N.m (15 lb ft).

Fig 2: CPA Retainer, ECT & HO2S Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

Connect the ECT sensor electrical connector (1).
Fill the cooling system as needed. Refer to Cooling System Draining and Filling (GE 47716 Fill) .