IS IT MY HEATER CORE
186,000 miles, replaced themostat about 2 weeks ago. turn on heat or defrost and smells like anitfreeze. no wetness inside truck. windows will not unfog. heat is still blowing hot. this all started about 4 hrs ago, all of a sudden. no warning lights are on.
Yes. A small leak in the core most probably. Replace before the leak gets larger.
Very likely the core, another person on this site; oldtimer37 communicated a website on how to dig into it and remove/replace the core; http://www.ehow.com/how_7666292_replace-cores-1998-ford-expeditions.html. Good luck!!
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