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

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. Turn OFF the ignition.
2. Relieve coolant pressure.
3. Drain coolant. Refer to Draining and Filling Cooling System in Cooling System.
4. Disconnect the 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 engine.

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

3. Install the electrical connector.
4. Refill coolant to proper level. Refer to Draining and Filling Cooling System in Cooling System.
5. Start the engine.
6. Inspect for leaks.