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

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.

Caution: Do not remove the pressure cap from the high fill reservoir while the engine is at normal operating temperature. An unexpected release of hot engine coolant may result in severe burns.

2. Relieve the coolant pressure.
3. Drain the cooling system below the level of the sensor.
4. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
5. Disconnect the electrical connector releasing locking tab.



6. Remove the coolant sensor from engine.

Notice: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.

1. Coat the threads (only) with sealer P/N 9985253 or equivalent.

Tighten
Tighten the sensor to 13 N·m (10 lb ft).




2. Install the coolant sensor in the engine.
3. Connect the electrical connector.
4. Refill the coolant system.
5. Connect the negative battery cable.
6. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .