Originally Posted by THELMALOUIE
Come to think about it could be mud as we were tuck the night before. Will check all those things mentioned. Thanks to all of you for your help.
Yes, if you were stuck the night before, there is a high possibility you may have some chunks or more of mud stuck to the inside/outside of the wheels.
You might can go to a car wash (or if you have access to a pressure washer) and see if you can wash a bunch of the dirt/mud out of the wheels. If you have hub/center caps on your coach, it can be more problematic to be able to get to, in order to wash everything out.
Hope it's something that simple.