my brakes were spraying fluid from inside the hood and it was leaking onto the front wheel well so i popped the hood to find i had a tiny rust hole in my 12 valves proportioning valve , and i ordered a used one form the auto wrecker , cost $70 and it looked new , so i replaced it and it is now leaking where the metal pipes thread in to the master cylinder , it is such a tiny leak that it would take 5 years to leak out all the fluid . though .... could it be the threads are damaged or what ?