ak diesel driver
6.5 driver
So I was driving my dually into town this afternoon and came up to the first stop light and stepped on the brakes. Pedal was really mushy and hardly any braking action stepped on it again and pedal went way down, stepped on it again and on the 3rd or 4th try suddenly I had brakes again. So I drove pretty cautiously into town wondering if I had broken a hose or something. Couldn't find anything and the brakes worked normally. Picked up about 500 lbs worth of stuff and headed home and when I got to that same stoplight the brake pedal went way down again when I stepped on it again the pedal jumped kinda like a port had opened suddenly and the brakes were fine again. Any ideas?