For 1990-2009 cars

### Removal Procedure

1. Partially drain the cooling system. Refer to Cooling System Draining and Filling .
2. Disconnect the engine wiring harness electrical connector (6) from the engine coolant temperature (ECT) sensor.
3. Remove the ECT.

### Installation Procedure

Notice: Refer to Fastener Notice in the Preface section.

1. Install the ECT.

Tighten
Tighten the sensor to 20 N·m (15 lb ft).

2. Connect the engine wiring harness electrical connector (6) to the ECT sensor.
3. Fill the cooling system as needed. Refer to Cooling System Draining and Filling .