Ok heres what happened.... during the install, i crimped the brake line and removed it from the caliper, which allowed me to have easy access to do the pad switch...while doing this, a good amount of fluid came pouring out of the caliper....i didnt think much of it.... i thought that once i reconnected the brake line it would refill the caliper on its own.... NOT SO..... so to make a long story short I had to get back under there, and bleed just the front brakes....although my hands did get dirty again, it sure was satisfying to fix the problem without much trouble! Its been a week since the switch out and everything is in proper working order!
take care and thx for the help