Q: my breaks are lossing presure on first pump on 1999 Buick Century

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
my front break pads were replaced last fall and in the last month when i would prss the breake the break pedal would go almost to the floor but if i let my foot off the break and pump it agin the would stiffin up and work great
(1) Answer
could be air in the system.
could be a wheel bearing failure in the front wheel as well.
could be a master cylinder seal failure.
at any rate, get it to a shop to have it pin pointed and a bid.