Nothing done to the car. The AC has only been used about 20 hours in 5 years. I only have issues when the compressor cycles on and off. It also make the buck like bronco at low speed (15 to 20 mph 2nd gear in traffic) that is just as annoying. Now I know what the folks in Cali and Vagas areas complain about. I think I will go ahead and the Idle motor but it should be clean with only 16k miles on the car. The TB was spotless when I checked that.

 

Mine did this. I performed the "MAP sensor whack" and problem solved.
I read about this procedure here..