F 250 4WD Super Duty V10-6.8L VIN Y (2006)
Thermostat: Service and Repair
Thermostat - 5.4L 6.8L
Material
Removal and Installation
1. Drain the engine cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding.
2. Remove the air cleaner outlet pipe. For additional information, refer to Fuel Delivery and Air Induction.
3. If servicing the thermostat housing, disconnect the upper radiator hose from the thermostat housing.
4. Remove the 2 bolts, position the thermostat housing aside and remove the thermostat. Discard the O-ring seal.
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Inspect the mating surfaces. Clean the sealing surfaces with metal surface prep.
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Install a new O-ring seal.
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To install, tighten to 10 Nm (89 inch lbs.).
