Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENTREMOVAL PROCEDURE
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
1. Turn OFF the ignition.
2. Drain the coolant system to below the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System (3.4L) or Draining and Filling Cooling System (2.2L (L61)) in Cooling System.
3. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
4. Carefully remove the ECT sensor.
INSTALLATION PROCEDURE
NOTE:
^ Refer to Component Fastener Tightening Notice in Service Precautions.
^ Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
1. If you are reinstalling the original sensor, or if you are installing a new sensor without a sealer, coat the threads with sealer P/N 9985253 or an equivalent.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the ECT sensor.
Tighten
Tighten the ECT sensor to 10 N.m (89 lb in).
3. Connect the ECT sensor electrical connector.
4. Refill the engine coolant system. Refer to Draining and Filling Cooling System (3.4L) or Draining and Filling Cooling System (2.2L (L61)) in Cooling System.