Installation Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: 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.

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

Fig 1: View Of ECT Sensor

Courtesy of GENERAL MOTORS CORP.

If re-installing the old sensor, coat the threads with sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent.

CAUTION: Refer to Fastener Caution .

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

Fig 2: View Of Engine Wiring Harness Electrical Connector & Engine Coolant Temperature (ECT) Sensor

Courtesy of GENERAL MOTORS CORP.

Connect the engine wiring harness electrical connector (1) to the ECT sensor (2).
Fill the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or Cooling System Draining and Filling (Static Fill) .