RPM weirdness

Legwagon

BC-BF-*BJ*
I drove to Bangor today, for me a 120ish mile round trip. I haven't driven my car in a couple weeks... so... when I arrived in Bangor I stopped into Bull Moose before heading over to the mall.. when I came out of Bull Moose and headed over to the mall I noticed my RPMs were hitting about 1700 to 2000 RPM at idle?... I parked it, turned it off, fiddled with the throttle cable a bit and then restarted... which it was rather hesitant/weakish start.....the RPMs at idle were still about 1700/2000?.. So I turned off the car and restarted again.. which was another hesitant start.. same thing again.... So I parked under the shade of some trees and went inside. came back out an hour and a half later and it started fine and the RPMs were normal?... whats going on here?

 
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I dont know what the IAC looks like on your motor. maybe dirty and stuck, maybe failed when hot? Mine sticks at high idle cold a lot cleaned it once long time ago helped.

 
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