Thermostat: Service and Repair

ENGINE COOLANT THERMOSTAT

REMOVAL
1. Remove upper intake manifold.
2. Partially drain cooling system below the thermostat level.
3. Remove upper radiator hose from outlet connector.
4. Remove coolant recovery system hose from outlet connector.
5. Remove coolant outlet connector bolts.
6. Remove thermostat assembly, and clean sealing surfaces.

INSTALLATION





1. Place the new thermostat assembly into the coolant outlet connector, aligning air bleed with the location notch on outlet connector.
2. Install coolant outlet connector with thermostat in position onto thermostat housing. Tighten bolts to 12.5 Nm (110 inch lbs.).
3. Install upper radiator hose.
4. Connect the coolant recovery system hose.
5. Install upper intake manifold.
6. Fill cooling system.