How To Replace Thermostat on Ford Expedition and Lincoln Navigator?

The procedure is similar for both ford and Lincoln car models:-----

The details to replace Thermostat are as follows: ----

 Removal & Installation:---

1. Before servicing the vehicle, refer to the precautions section.
2. Partially drain the cooling system to a level below the thermostat.
3. Disconnect the upper radiator hose.
4. Remove the 2 bolts, the thermostat housing and the thermostat. Discard the O-ring seal.
5. Inspect the mating surfaces. Clean the sealing surfaces with metal surface prep and silicone gasket remover. Follow the directions on the packaging.
6. If necessary, install a new thermostat with the spring facing down.
7. Install a new O-ring seal.
8. Make sure the thermostat housing is seated evenly by hand tightening the 2 thermostat housing bolts prior to final tightening.
9. To install, reverse the removal procedure. Tighten thermostat housing bolts to 89 inch lbs. (10 Nm). 
   
   
   
   Fig. View of thermostat and housing

These details will help.

Thanks.

FOR MORE HELP GO TO: ---

Car repair guide?

http://technoanswers.blogspot.in/2012/03/car-repair-guide.html