I have an XJ booster and MC installed in my CJ. I just cant get the thing to make pressure. It will happen but i have to pump it a bunch and i have put some much fluid through the entire system by bleeding it i do not get any more bubbles, or even that much pressure getting shot out. I bled it with the engine off. When i have the engine on the brakes will cause my engine to die. I do not feel any leaks, but when i have the engine off and push the pedal in i can hear the booster weezing. Also the MC when i got it had all kinds of black crap caked on the inside, i am guessing it was old fluid that dried. I cleaned out out as best i could with brake cleaner but i am guessing it gunked up the bore and probably is the reason i cant get pressure. Should i be looknig at anything else?