For 1990-2009 cars

## Engine Coolant Temperature Sensor Replacement L18

### Removal Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Disconnect the electrical connector from the bracket.
3. Disconnect the engine coolant temperature (ECT) sensor electrical connector (3).
4. Remove the ECT sensor.

### Installation Procedure

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.

1. Install the ECT sensor.

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

2. Connect the ECT sensor electrical connector (3).
3. Connect the electrical connector to the bracket.
4. Fill the cooling system. Refer to Cooling System Draining and Filling .

## Engine Coolant Temperature Sensor Replacement LG5

### Removal Procedure

1. Disconnect the harness connector.
2. Remove the coolant sensor (1).
3. Drain the engine coolant. Refer to Cooling System Draining and Filling .

### Installation Procedure

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.

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

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

2. Install the harness connector.
3. Check the engine coolant level.
4. Refill the engine coolant. Refer to Cooling System Draining and Filling .