Hard Pedal

Power unit or master cylinder malfunctioning. Linings soiled with brake fluid, oil, or grease. Lines, hoses, or connections dented, kinked, collapsed, or clogged. Master cylinder cups swollen. Shoes and linings worn. Incorrect lining. Frozen or seized pistons. Metering valve (in line to front brakes) not working. Master cylinder bore corroded or rough. Caliper cylinder bores corroded or rough. Pedal pushrod and linkage binding.