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 engine coolant temperature sensor will affect proper 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. Remove the ECT sensor shield (2) from around the ECT sensor.
4. Disconnect the ECT sensor electrical connector (1) from the ECT sensor (3).
5. Remove the ECT sensor from the engine.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

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

1. Install the ECT sensor (3) into the engine.

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

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