Engine Coolant Thermostat Replacement VIN 1

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.
2. Remove the engine sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.
3. Drain the cooling system. Refer to Cooling System Draining and Filling .



4. Disconnect the inlet radiator hose.



5. Remove the thermostat housing.
6. Remove the thermostat (4).
7. Clean the gasket mating surfaces.

1. Install the thermostat (4) and gasket (3).
2. Install the thermostat housing (2).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the thermostat housing bolts (1).

Tighten
Tighten the thermostat housing bolts to 20 N·m (15 lb ft).




4. Install the inlet radiator hose.
5. Refill the cooling system. Refer to Cooling System Draining and Filling .
6. Install the engine cover.
7. Connect the negative battery cable.

Tighten
Tighten the negative battery cable bolt to 15 N·m (11 lb ft).