For 1990-2009 cars

### Removal Procedure

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 Cooling System Draining and Filling in Engine Cooling.
2. Disconnect the electrical connector from the ECT sensor .
3. Remove the ECT sensor from the thermostat housing.

### Installation Procedure

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 in the thermostat housing.

Tighten
Tighten the sensor to 15 N·m (11 lb ft).

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