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

Important: Care must be taken when handling the engine coolant temperature (ECT) sensor. Damage to the sensor will affect the operation of the fuel injection system.

1. Turn OFF the ignition.
2. Drain the radiator coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
3. Disconnect the electrical connector (1) from the ECT sensor (3).
4. Remove the ECT sensor shield (2) from around the sensor.
5. Remove the ECT sensor from the engine.

Important: Care must be taken when handling the engine coolant temperature sensor. Damage to the sensor will affect the operation of the fuel injection system.

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. Hand-start the ECT sensor (3) into the engine.
2. Tighten the ECT sensor.

Tighten
Tighten the sensor to 25 N·m (18 lb ft).

3. Install the ECT sensor shield (2) around the ECT sensor.
4. Connect the electrical connector (1) to the ECT sensor (3).
5. Refill the radiator with coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
6. Start the engine.
7. Check for coolant leaks.
8. Check the coolant level.