Common Brake Problems
LOW BRAKE FLUID
Usually indicates a leak in the brake system which poses a serious safety hazard. The callipers, wheel cylinders, brake hoses, brake lines, and master cylinder all need to be inspected. If there is a leak present, the defective component must be replaced or rebuilt. The vehicle should not be driven until repaired.
SPONGY OR SOFT PEDAL
Means there’s air in the brake system either as a result of incomplete bleeding, fluid loss or a very low fluid level.
EXCESSIVE PEDAL TRAVEL
Possible causes include worn brake linings, misadjusted drum brakes, and air in the brake lines.
Indicates a brake rotor that needs to be resurfaced or replaced. The faces of a rotor must be parallel.
Usually indicates metal‐to‐metal contact and the need for a long overdue brake job. Drum and rotor replacements will likely be needed in addition to new linings and brake hardware. Some disc pads have wear indicators fitted which give out a screeching sound, and this means the brakes need immediate attention.
Commonly caused by vibrations between the disc pads and calliper, which can be cured by resurfacing or replacing the rotors, installing new pads and pad shims, or applying brake grease or noise compound to the backs of the pads.
BRAKES PULL TO ONE SIDE
Caused by contaminated linings, misadjusted brakes, a bad wheel cylinder or calliper, dragging brakes on one side or loose wheel bearings. Can also be caused by differences in rotor thickness, type or condition.
Is ‘hygroscopic’ which means it absorbs moisture, as this happens the boiling point of the brake fluid drops dramatically, which causes it to boil and therefore loss of brakes will occur. Fluid should be replaced every 2 years.