I just got a 2000 grand Cherokee (Laredo). I was replacing the front hubs and brakes and I removed the whole caliper to avoid it getting damaged. Now I usually just hang my calipers but this time i didnt. And I had gripping problem on that side when I test drove it. So I took it back off re lubercated the pins that slide and now I have spongy brakes and my resivoir is full of fluid. What should I do?