Thanks everyone for your feedback. I do think the throttle cable is worn and needs replacement. I also want to clean the IAC. It looks to me that I will have to remove the throttle body in order to remove the IAC. I was trying to be lazy and just remove the IAC but I can't see any way to remove...
Thanks for the assessment. I will re-check everything. I agree, I think something is keeping the throttle plate from closing. The strange thing is this only happens when it is hot, like hot outside, in hot weather.