Toyota Dyna vehicle tends to loose pressure when you brake at first,then when you pump it then it holds.we have replaced the brake master cylinder and cleaned the slave cylinders.we also changed the slave cylinder kits but the problem is still there.we also flushed the braking system and put in new brake fluid (DOT 3) and we bled the system but there is no change.
Apr 18, 2014 at 10:06 AM
