For 1990-2009 cars

### Removal Procedure

Caution: Allow sufficient time for the engine to cool before removing the ECT sensor. A hot engine may cause an excessive coolant loss or a personal injury.

1. Turn the ignition OFF.
2. Remove the engine coolant temperature sensor harness connector (1) from the coolant temperature sensor (2).
3. Remove the engine coolant temperature sensor (1) from the engine (2).

### Installation Procedure

Notice: Refer to Fastener Notice in the Preface section.

1. Install the coolant temperature sensor (1) to the engine.

Tighten
Tighten the coolant temperature sensor to 22 N·m (16 lb ft).

2. Install the coolant temperature sensor electrical connector (1) to the coolant temperature sensor.
3. Inspect and fill the cooling system as necessary. Refer to Cooling System Draining and Filling.