Coolant Temperature Sensor/Switch (For Computer): Service and Repair

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.





REMOVAL PROCEDURE

IMPORTANT: Care must be taken when handling the Engine Coolant Temperature (ECT) sensor. Damage to the sensor will affect the operation of the fuel injection system.

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Drain the radiator coolant. Refer to Draining and Filling Cooling System in Cooling System.
3. Disconnect the electrical connector (1) from the ECT sensor (3).
4. Remove the ECT sensor shield (2) from around the sensor.
5. Remove the ECT sensor from the engine.

INSTALLATION PROCEDURE

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

NOTE: Refer to Component Tightening Notice in Service Precautions.

1. Hand-start the ECT sensor (3) into the engine.
2. Tighten the ECT sensor.

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

3. Install the ECT sensor shield (2) around the ECT sensor.
4. Connect the electrical connector (1) to the ECT sensor (3).
5. Refill the radiator with coolant. Refer to Draining and Filling Cooling System in Cooling System.
6. Connect the negative battery cable.
7. Start the engine.
8. Check for coolant leaks
9. Check the coolant level.