Maintaining good brakes and replacing worn parts, such as pads and shoes, is crucial for safe driving and saving money. Understanding their purpose is essential.
WHAT EXACTLY ARE BRAKE PADS? WHAT EXACTLY ARE BRAKE SHOES?
Passenger cars have two types of brakes: disc brakes and drum brakes. Disc brakes use specially developed friction material pads to slow the vehicle, which is standard on the front axles of all current passenger cars and many rear axles. Drum brakes, similar to disc brake pads, use friction material fastened to half-moon-shaped shoes that press against the drum when the driver applies the brakes. Drum brakes were once ubiquitous on all four-wheel locations but are now only found on modern vehicles and light trucks. Both pads and shoes degrade with usage, so it’s crucial to regularly inspect them. Wearing out brake pads or shoes can lead to expensive repairs and damage to other components of the brake system. Know more about: Power Stop brakes
WHAT HAPPENS WHEN BRAKE PADS OR SHOES FAIL?
When applying brakes, the friction material wears off pads and shoes, eventually thinning. If not replaced, friction material will completely wear away, revealing steel parts. These bits contact discs or drums, causing long braking distances and damaging them.
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NOISES OF SQUEALING OR SCREAMING
Wear indications on vehicle brake pads can cause a loud, screeching, or whining sound when braking. These sounds are produced by a metal attachment on the pad backing plate. If you hear this sound frequently, it’s time to visit a brake specialist for a checkup. Not all brake pads have this capability, so don’t rely solely on sound to determine brake condition. If the sound disappears after the first few uses, it’s likely due to moisture on the brake pads or shoes, not a warning to change them.
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BRAKE PAD LESS THAN A QUARTER INCH
Examine disc brake pads for replacement, removing wheels if necessary. Look at the brake assembly or caliper, where pads are squeezed against the rotor. If friction material is less than 14 inches thick, have brakes tested, especially if it’s been a long time.
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GROWLING AND DEEP METALLIC GRINDING
A deep, low noise like metal grinding or a rumbling growl may indicate worn brake pads and metal contact with discs or drums. This can cause further damage to the braking system. Seek a service facility immediately if this noise occurs.
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INDUCTION LIGHTS
Check your owner’s handbook for a low-pad warning system in your vehicle. If the light illuminates, your mechanic must repair both warning sensors and brake pads.
BRAKE PADS AND SHOES LAST HOW LONG?
The lifespan of brake pads and shoes varies by vehicle and driver. In urban areas, they typically last between 30,000 and 35,000 kilometers, while in less demanding conditions, like highway travel in moderate traffic, they may last longer. Some drivers also “ride the brake,” causing pads to wear out faster.