This video will show you how to replace the thermostat housing assembly on a 2010 Mercury Mountaineer with the 4.0L V6 engine. A leak had developed between the seam of the lower and upper thermostat assembly. Since the assembly is made out of plastic, I assumed the housing had failed or quite possibly just the housing seal. Since the new assembly was moderately priced and came with a new thermostat, the customer agreed to have the old assembly replaced. The Mountaineer engine is also used on Ford Explorer.
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Parts and Specialty Tools:
Stant 15249 Thermostat/Water Outlet Assembly:
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EPAuto Spill Proof Radiator Coolant Filling Funnel Kit:
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Ford Genuine Fluid VC-3DIL-B Orange Pre-Diluted Antifreeze/Coolant - 1 Gallon:
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Permatex 22058 Dielectric Tune-Up Grease:
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