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

NOTE: Drain the radiator to a level below the water outlet connection and then close the radiator drain cock. This procedure will require less refill time.

REMOVAL

1. Disconnect the battery ground cable.

NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control module relearns its adaptive strategy. The vehicle may need to be driven 10 miles or more to relearn the adaptive strategy.

2. Open the radiator drain cock and drain the engine coolant to a level below the water outlet connection. Close the radiator drain cock.

3. Disconnect the Engine Coolant Temperature (ECT) electrical connector.

4. Use a deep well socket to remove the ECT sensor from the sensor housing.

INSTALLATION

1. Install the ECT sensor into the housing. Tighten sensor to 16-24 Nm (12-18 lb ft).

2. Connect the ECT electrical connector.

3. Connect the battery ground cable.

4. Refill cooling system and check for leaks.