OEM 2008 Lincoln Mark LT Thermostat

2008 Lincoln Mark LT Thermostat Parts Questions & Experts Answers

• Q: How to service the thermostat on a 5.4L (3V) engine on 2008 Lincoln Mark LT?

  A: The engine cooling system needs draining in the first step of servicing a 5.4L (3V) engine thermostat. The second step involves removing the air cleaner intake pipe from its position. Service of the thermostat housing requires releasing the clamp and disconnecting the upper radiator hose from its position on the thermostat housing. You should unfasten the thermostat housing with bolts before removing it. Follow this procedure by tightening the bolts until they reach 10 Nm (89 lb-in). Release the thermostat from its place and remove the attached O-ring seal by throwing away the old seal. Install the housing by following the removal steps in reverse order and use a new O-ring seal that received lubrication from clean engine coolant. The service requires finishing with cooling system filling and bleeding procedures.