Now a friend of mine was looking for a new used car which led me to recommend a Five Hundred for her particular needs. And this led me to doing some Internet research on the cars. Somewhere during these searches I tripped over a reference to the A/C problem that I deal with on my car.
It looks like this might be fixable with a $35 part and less than an hour of labor.
I have spoken to my mechanic and have ordered the part. They'll install it.
And then I'll chill for a while.
I hope. :)