Brake pedal going to floor - air sound
My 2011 all of the sudden started having some brake issues. At 55K miles I figured it was just time to change the pads, but then noticed they are fine. I have to bottom out my brakes right now and its not safe. I have an appointment to get them looked at, but didnt want the dealer telling me it was 1 thing and come to find its not. When i completely press them to the floor, i can hear what sounds like an air leak, but only when completely depressed. Any ideas what this could be? First thoughts were either the master cylinder or brake booster, but the air sound has me thrown.
2011 GC Overland V8 Black/Black 730N (RER)
Chrome Fog Bezels
Chrome Side Steps
Slush mats during Ohio winters