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

ENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENT

REMOVAL PROCEDURE

CAUTION: Allow sufficient time for the engine to cool before removing the ECT sensor. A hot engine may cause an excessive coolant loss or a personal injury.




1. Partially drain the coolant system.
2. Remove the intake manifold.
3. Disconnect the wiring harness from the engine coolant temperature (ECT) sensor.
4. Remove the ECT sensor (1) from the coolant bridge.
5. Clean any spilled coolant.

INSTALLATION PROCEDURE

NOTE:
^ Apply a non-hardening sealer to the sensor threads prior to installation in order to prevent coolant leaks. Use P/N 1050805 or the equivalent
^ Refer to Component Fastener Tightening Notice in Service Precautions.




1. Install the ECT sensor (1) into the coolant bridge.

Tighten
Tighten the ECT sensor to 21 N.m (15 lb ft).

2. Connect the wiring harness to the ECT sensor.
3. Install the intake manifold.
4. Refill the coolant system. Refer to Draining and Filling Cooling System in Cooling System.