hello, i have a 95 rodeo that the brakes keep locking up at random times,they will gradually lock up as you are driving,then after it has been parked a while they will release,and will roll free. sometimes it will lock right away,other times it could be 5 miles,or 10,or 2 miles,seems totally random,the pads look ok,and they dont make any noise or anything,not even when they lock up....could this have something to do with the abs? the abs light and the brake warning light are both on all the time. any help would be greatly appreciated,totally stumped here,thanks