I recently installed stainless steel lines on my 04 sti and then bled the brakes using the sti manual. I took it for a test drive and now my brakes are going straight to the floor. If i pump the brakes they come back for a second and then go away again. I thought i missed something and bled the brakes again with no affect at all. Is my brake booster bad or am i missing something. Also, I am NOT losing fluid anywhere. Thanks in advance.