Installation Procedure

Fig 1: Identifying ECT Sensor

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: 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 Sealers, Adhesives, and Lubricants .

NOTE: Refer to Fastener Notice .

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

Fig 2: Locating ECT Sensor Electrical Connector

Courtesy of GENERAL MOTORS CORP.

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