Diesel Data: Automotive Repair

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




REMOVAL PROCEDURE

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

1. Turn OFF the ignition.
2. Drain the radiator coolant. Refer to Draining and Filling Cooling System in Cooling System.
3. Remove the exhaust crossover pipe.
4. Disconnect the ECT sensor electrical connector.
5. Remove the ECT sensor.

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.

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. Hand start the ECT sensor into the engine.

Tighten
Tighten the ECT sensor to 30 N.m (22 lb ft).

2. Connect the ECT sensor electrical connector.
3. install the exhaust crossover pipe.
4. Refill the radiator with coolant. Refer to Draining and Filling Cooling System in Cooling System.
5. Start the engine and check for leaks.
6. Inspect the coolant level.