Installation Procedure

NOTE: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.

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

Fig 1: Identifying ECT Sensor & Thermostat Housing

Courtesy of GENERAL MOTORS CORP.

If reinstalling the original sensor or if installing a NEW sensor without a sealer, coat the threads with sealant. Refer to Sealers, Adhesives and Lubricants .

NOTE: Refer to Fastener Notice .

Install the ECT sensor (1) to the thermostat housing.
Tighten: Tighten the sensor to 20 N.m (15 lb ft).

Fig 2: View Of Engine Wiring Harness Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

Connect the engine wiring harness electrical connector (1) to the ECT sensor (2).
Install the generator control module cover. Refer to Generator Control Module Cover Replacement .
Fill the cooling system. Refer to Cooling System Draining and Filling (GE 47716 Fill) , Cooling System Draining and Filling (LY7, LZ4, Static Fill) or Cooling System Draining and Filling (LAT Static Fill) .