my freind has a 95 f250 7.3 diesel he said the master cyl was bad so we change it,well i did he sat there eating and drinking with his wife she likes wine she a wine-o, with the master cly change the brake pedal still go's down slow to the floor it will stop the truck but once it hit's the floor it start's to move all the air is out of the line's but still go's to the floor has anyone had this kind of PITA,,,,thanks,,,,keith