QX56 V8-5.6L (VK56DE) (2004)
Thermostat: Service and Repair
Removal and Installation
REMOVAL
Removal of Thermostat
1. Drain engine coolant from the radiator.
CAUTION: Perform when engine is cold.
2. Remove air duct (inlet).
3. Remove engine room cover using power tools.
4. Disconnect water suction hose from water inlet.
5. Remove water inlet and thermostat.
Removal of Thermostat Housing, Water Outlet and Heater Pipe
1. Remove Intake manifold.
2. Remove thermostat housing, water outlet and heater pipe.
Removal of Water Cut Valve
1. Drain engine coolant from the radiator.
CAUTION: Perform when the engine is cold.
2. Remove air duct (inlet).
3. Remove engine room cover using power tools.
4. Disconnect heater hose (heater core side).
5. Remove heater hose bracket.