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

1. Drain the engine coolant system. Refer to Draining and Filling Cooling System in Engine Cooling.



2. Disconnect the ECT sensor electrical connector.
3. Remove the ECT sensor from the thermostat housing.

Notice: 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.

1. Install the ECT sensor to the thermostat housing.

Tighten
Tighten the ECT sensor to 10 to 20 N·m (7.5 to 14 lb ft).

2. Connect the ECT sensor electrical connector.
3. Fill the engine coolant system to the proper level. Refer to Draining and Filling Cooling System in Engine Cooling.