Leaking Break Control/proportioning valvle

[lexman84]

I just recently replaced the break control/proportioning valve after an accident I was in because I noticed that it was leaking. I ordered the part through the dealer and installed it. A few weeks after re-installing the new valve I noticed that the new valve was leaking in the same location. The leak is originating at the very bottom of the valve where there is located a rubber cap. I am trying to find out if I possibly have a larger problem than just the valve. I am hoping that i just got a faulty valve from the dealer but its hard to tell. If you have any suggestions or if you have experienced this problem please any suggestions would be greatly appreciated.