Is it even possible? My pads are all pretty new. The symptoms are: the pedal goes almost to the floor, seems to come back up a little slow. and when I hit them hard they don't lock, the front disks are getting rusty. So I'm thinking the fronts aren't doing anything. There's no leaking anywhere, no warning light.

Any Ideas?

 

check brake fluid, make sure its full.. Id think a bad master cylinder could do something like that.

 

Try bleeding them also