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

ECT Sensor Replacement

Removal Procedure

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




1. Disconnect the negative battery cable.
2. Drain the radiator coolant.
3. Disconnect the ECT sensor electrical connector.
4. Using a 19 mm deep well socket and an extension remove the ECT sensor.

Installation Procedure

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

Notice: Refer to Fastener Notice in Cautions and Notices.





1. Hand start the ECT Sensor into the engine.
- Tighten the ECT Sensor to 30 N.m (22 lb ft).
2. Connect the electrical connector.
3. Refill the radiator with coolant.
4. Connect the negative battery cable.
5. Start the engine and check for leaks.
6. Check the coolant level.