Hello guys. I have a 2014 zr 7000. I have removed the brake caliper to do some maintenance and clean everything as well as replacing the brake pads. Now when I fill up the reservoir I can't get any pressure in the system what so ever. Thr brake fluid don't seems to get pumped by the piston pine. The o ring and seal looks good in the cylinder brake. Any of you ever had thos problem and/or know what am I foing wrong?