2002 Explorer V-6 After driving there is a small puddle of anti-freeze on garage floor (3" in dia). Anybody have any idea as to why fluid would be there.

 

My first guess would be that you have a coolant leak...

There really is no other way to find a coolant leak than to let the system pressure up and get down there with a flashlight and pinpoint where it's from or pay a mechanic to do it for you.

 

you might get lucky an find its just a hose clamp that needs to be tighten'd up

 

Had this problem with about 120k on engine dealer said it was a small head gasket leak and would need to be replaced eventually. I went down to wal mart, bought some radiater stop leak flushed system, refilled, put stuff in and havent had a problem in over a year.