Installation Procedure

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

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.

Fig 1: View Of ECT Sensor

Courtesy of GENERAL MOTORS CORP.

Coat the sensor threads with sealer GM P/N 1050805, or equivalent.

NOTE: Refer to Fastener Notice in Cautions and Notices.

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

Fig 2: View Of ECT Engine Wiring Harness Connectors

Courtesy of GENERAL MOTORS CORP.

Connect the ECT sensor harness connector.
Install the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical - 4.6L (LH2).
Refill the coolant system. Refer to Draining and Filling Cooling System in Engine Cooling.