Hey guys, I've got an interesting problem. I've been letting my '89 Dodge Raider (3.0L) sit over the winter, and when I fired it up the other day (and it fired right up...amazing), I had no brake power. The pedal just went to the floor. So I popped the hood, and noticed that my brake fluid reservoir was bone dry. hm? So, I topped it off, and still no brakes. And when I fill up the reservoir, it stays full while I'm applying the brakes. After letting it sit another week or so, I checked it out and again, the reservoir was completely dry. For some reason, it's draining on it's own. I've traced all the brake lines and can't find a leak anywhere, but there appears to be a possible leak where the master cylinder meets the power booster. I'm wondering which part may have failed, or if both parts need replacing? Any advice or suggestions would be much appreciated.

Thanks!

Hutch

'89 Dodge Raider 3.0L
~350000 miles on her