My brakes feel like aren't getting enough pressure or something. I have to push them all the way down like im trying to lock them up for them to "grab". If i push them a little bit it feels like it is doing nothing. Is this bc of old brake lines , calipers , or what? Thanks.

 

hmmmm. try bleeding them..

 

Ive done that. The pads , rotors are good and the master cylinder was just replaced.

 

next thing to replace would be the brake booster.

 

try replacing brake lines

 

If you changed the MC, theres a good chance theres still air in the lines. Had to bleed 3 times after we changed my MC two different ways. You can either criss-cross like in the service manual, or "work your way towards the MC from the farthest corner" method. We did both methods just to be safe...