I see you have opened another question, I closed that so you do not get charged again.
There was a major recall this year for the brakes heating up. Below are the details, could be the issue and if it is at a shop I would bring it up. IF you are satisfied with my efforts please feel free to select a rating at the top of the page, it is the only way I get credit for helping.....
Also Click HERE
Manufacturer: MONACO COACH CORP.
ON CERTAIN MOTOR HOMES, THE BRAKE ASSEMBLIES EXHIBIT ELEVATED TEMPERATURES THAT CAN LEAD TO CATASTROPHIC DETERIORATION OF THE WHEEL END COMPONENTS SUCH AS BEARINGS, RACES, SPINDLES, KNUCKLES, SEALS, HUBS, ROTORS, PATCH BOLTS, CALIPERS, BRAKE PADS, AND ABS SENSORS.
THIS COULD RESULT IN LOSS OF CONTROL, AND/OR THE POTENTIAL FOR A FIRE.
DEALERS WILL INSPECT THE FRONT AND REAR BRAKE CALIPERS FOR CORROSION AND REPLACE OR REBUILD THE CALIPERS AS NECESSARY. THE RECALL BEGAN ON AUGUST 18, 2004.