HAVE LOST BREAKING WHEN MAKING TURN AND APPLYING BRAKES ON ROUGH ROADS (IN WINTER) THE BRAKE PEDAL WENT TO THE FLOOR IN ORDER TO STOP AND AFTER QUITE SOME TIME THE BRAKES WOULD RETURN TO "NORMAL" AND THEN TIS PROBLEM WOULD REOCCUR, TO DATE THIS HAS HAPPENED SEVERAL TIMES OVER A TWO AND A HALF PERIOD, WHEN TAKEN INTO MECHANIC HE COULD FIND NO PROBLEM, HE HAS SUGGESTED TO REPLACE THE MASTER CYLINDER, HOW EVER I HAVE NEVER HAD A MASTER CYLINDER FAIL AND THEN FIX ITSELF AND THEN FAIL OVER AGAIN AND AGAIN, I BELIEVE IT IS THE ABS CONTROL VALVE AND I FEEL THAT THIS IS NOT A NORMAL WEAR ISSUE, AND THAT FORD SHOULD DO A TOTAL RECALL TO REPAIR THIS "SAFETY" ISSUE.