Kept having brake issues. It slowly worked its way to where I had to mash them to the floor. I bled them many times, changed the brake booster, replaced hoses, checked check valve, etc. Still nothing. Then I noticed that while my fronts were slow to catch, my rears would lock up. So that led me to the master cylinder, since both fronts are on the end of the valve. Boy I got brakes that will snap your neck off now.
Sent from my Garnet Red SGS III