Hi, i am new to this site and i thought i would try it out. I bought a 98 lumina ltz a couple days ago. The dealer said it had brake problems. when i brake i have to push it almost all the way to the floor for it to do anything. so i bled the brake lines, it didnt help. i found the rear right brakes didnt work at all, so i replaced the shoes and the caliber for that tire and it still hasnt changed it. If anybody has any ideas or advice i would greatly appreciate it. Thanks!