Yes I'm sure its coming from the modulator. I've got to get a glide before this racing season glides right on by me. I will get this 400 fixed if I have to replace the valve body, pump or even the whole case, the leak is just keeping me from running it or leaning on it at all. I guess on my next days in the shop I'll try and fix the leak. Then I can take it back to T&T at the track , as I said in an earlier post this last incarnation shifted on the jack stands just had crazy pressures in reverse , Iam worried it will eat itself again.