[RayChez1]

There are several things that would make a clicking sound on a wheel, but the first thing I would check would be the wheel bearings. Usually when they are starting to go bad they will make a clicking sound.
The next thing that can make a clicking sound and I don't know if your motorhome has hub caps, but sometimes some coaches have the chrome caps that cover the complete steel rim and sometimes they will make noise.
Then there is a possibility of a brake hanging up while making a turn, but I doubt that would be it.