OEM 2006 Lincoln Mark LT Thermostat

2006 Lincoln Mark LT Thermostat Parts Questions & Experts Answers

• Q: How to service the thermostat on a 5.4L (W) engine on 2006 Lincoln Mark LT?

  A: The first step for servicing a 5.4L (W) engine thermostat is draining the engine cooling system. Start by disconnecting then detaching the air cleaner intake pipe followed by the removal of the upper radiator hose from the thermostat housing through an unsticking of the clamp. The next step requires you to disassemble the housing by removing its bolts before taking it off. During new thermostat installation you must fasten the housing bolts to a torque value of 10 Nm (89 inch lbs.). The service procedure involves removing both the old thermostat and along with its O-ring seal before discarding the O-ring seal. Run through the removal steps in reverse direction yet replace both the O-ring seal with new pieces and apply clean coolant to it. The cooling system service concludes with filling the system followed by performing a bleeding procedure.