Well we are turning up the heat here in Phoenix, already 95 degrees. Understandably, my engine is running a little hotter also, but my ? is, why is the rpms at idle getting higher when the engine is hot. When cold, it idles around 800 in gear, when hot, it idles closer to 1000 in gear. Is that normal?

https://www.f150online.com/galleries....cfm?gnum=7238