NOTE:
Before assuming that a brake problem exists, make sure that the tires are in good condition and correctly inflated, that the front wheel alignment is correct, and that the vehicle is not loaded with weight in an unequal manner.
Vehicle pulls to one side under braking
» Worn, defective, damaged or contaminated
front or rear brake pads/shoes on one side.
» Seized or partially-seized brake caliper/
wheel cylinder piston.
» A mixture of brake pad/shoe lining materials
fitted between sides.
» Brake caliper mounting bolts loose.
» Worn or damaged steering or suspension components.
Noise (grinding or high-pitched squeal)
when brakes applied
» Brake pad/shoe friction lining material
worn down to metal backing.
» Excessive corrosion of brake disc/drum
- may be apparent after the vehicle has been
standing for some time.
Brake pedal feels spongy when depressed
» Air in hydraulic system.
» Deteriorated flexible rubber brake hoses.
» Master cylinder mountings loose.
» Faulty master cylinder.
Excessive brake pedal effort required to
stop vehicle
» Faulty vacuum servo unit.
» Disconnected, damaged or insecure
brake servo vacuum hose.
» Primary or secondary hydraulic circuit failure.
» Seized brake caliper/wheel cylinder piston(s).
» Brake pads/shoes incorrectly fitted.
» Incorrect grade of brake pads/shoes fitted.
» Brake pads/shoes contaminated. |
Judder felt through brake pedal or
steering wheel when braking
» Excessive run-out or distortion of brake disc/drum.
» Brake pad/shoe linings worn.
» Brake caliper mounting bolts loose.
» Wear in suspension or
steering components or mountings.
Brakes binding
» Seized brake caliper/wheel cylinder piston(s).
» Incorrectly-adjusted handbrake mechanism.
» Faulty master cylinder.
Rear wheels locking under normal braking
» Seized brake caliper/wheel cylinder piston(s).
» Faulty brake pressure regulator. |
