Have a 98 Coachman Class C. Have used it rather regularly. Two years after buying it, was in VT and the brakes were dragging badly. It was still under warrenty and a local Ford dealer replaced the front brakes, calipers and rotars. Then this past October, about 20 miles into a trip, the left front brake locked up so severely that it was smoking and had to be towed to garage. After having the moving parts cleaned and lubricated, our trip of 10 days was uneventful. However, mileage had dropped 1 - 1 1/2 mpg. While I was checking the brakes at just about every rest area, everything seemed a normal temperature.
Then in December we headed to FL. Arriving at Disney, I smelled a familar odor and the front brakes were hot again. A visit to Camping World showed that not only was the front rubbing, so was the rear. Now another rebuild job but no warrenty. Painful!
Have read in several magazines that brake fluid can absorb water and result in rusting. Have followed advice of magazines and have had the fluid replaced several times.
Has anyone else had a similar problem and, hopefully, a solution? Will consider anything including an exorcism!