Whats wrong with my brakes?
Over the past couple days, my brake pedal has gone to mush, I can push it to the floor. The fluid is full and doesn't seem to be leaking. It seems at different times when I push the brakes, different brakes lock up, and others don't. For instance, I was testing on some gravel and one time the fronts didn't lock up but the rears did. Then another time all 4 locked up. I was then going down the road and it seemed like the passenger side only locked up when I hit the brakes, causing the car to want to "spin". What is going on? Sorry if their is any grammar errors, I am kinda tired.
edit- When the brakes started acting screwy earlier this week, it seemed to start as "touchy brakes". It was all or nothing.