Low Pedal Or Excessive Travel

Fluid low. Inferior brake fluid (low boiling point). Air in system. Hoses weak enough to expand under pressure. Disc runout excessive. Wheel bearings or steering parts loose. Shoe and lining knockback after violent cornering or rough road travel (pump pedal to restore normal pedal height). Rear brake adjustment needed. Warped or excessively tapered shoe and lining assembly. Damaged caliper piston seal. Master cylinder or power unit malfunction. Metering valve (in line to front brakes) not working. Piston and shoe assembly not seated or properly positioned. Caliper seals soft or swollen.