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

ECT Sensor Replacement

REMOVAL PROCEDURE

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

1. Relieve coolant pressure.
2. Loosen the 2 air intake duct clamps and remove the air intake duct.
3. Disconnect the negative battery cable.
4. Disconnect the ECT sensor electrical connector.
5. Using a deep well socket and extension, remove the sensor.

INSTALLATION PROCEDURE
1. Coat engine coolant temperature sensor threads with sealer P/N 9985253 or equivalent.

NOTE: Refer to Fastener Notice in Service Precautions.

2. Install the sensor in the engine.

Tighten
Tighten the sensor to 23 N.m (17 lb ft).

3. Connect the ECT sensor electrical connector.
4. Reconnect the negative battery cable.
5. Reinstall the air intake duct and tighten the 2 air intake duct clamps.
6. Start the engine.
7. Check for leaks.
8. Check the coolant level.