Sounds like you could use a tune up.
bad IAC valve for the run at idle
Mine had that issue. It would not idle at all!! Same year, model, and engine. I cleaned the IAC and I was still having issues. It turned out to be a bad TPS sensor. Idles great now.
Looking for a Used F-250 in your area?
CarGurus has 404 nationwide F-250 listings starting at $4,500.
Search Ford F-250 Questions
Ford F-250 Experts
Related Models For Sale