I have a new to me 2006 F150. The other day, looking under the hood while it was running, I noticed there was lots of sloshing going on in the power steering reservoir. I thought it was boiling for a minute, but it is seems to be just pumping around pretty much. Is that normal? I've never seen it before, but most of my vehicles either didn't have a transparent reservoir or were too dirty to see!

 

I would say normal, my 06 has done that from day one. Just make sure the level is good.