Hi all, first time question with this car....Daughter called from Ames, IA with spongy brakes. As in push the pedal to the floor and barely get brakes. Could this be brake pads or lines? The car is in pretty good shape, bought it used from a dealer in August 2017, with 104K on it. They did all the "100K" service, mainly engine stuff like gaskets, etc. Car now is at 139K. Any trustworthy shops in Ames? LOL After research, could be air in the lines. Brake fluid is at the high mark, but that's all I know at this point. Which direction should I go here? Thanks for any advice!