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5 Signs You Need New Brake Pads

As a driver, it is important to know your car and it's especially important to know when your car needs something new, like new brake pads. All Tech Automotive found this article on

5 Signs You Need New Brake Pads

There are a lot of car owners out there who don't consider brake maintenance a priority - until something goes wrong. Do not make this mistake. When you hit the brake pedal, a complex network of parts springs into action. In order for the system to keep functioning properly, certain pieces must be replaced at regular intervals. Among those components, the ones that you'll probably be switching out the most often are your brake pads.

What are "brake pads" and how do they work?

In most modern automobiles, the front two wheels have a braking apparatus that depend on what are known as rotors: metallic discs found behind each wheel. Above each of these is a clamp-like device called the caliper. When you hit your brake pedal, the calipers start to close, squeezing the rotors from both sides. This action produces friction, which causes the wheels to spin more slowly until they come to a complete stop.

Brake pads are the removable surfaces that calipers users to make contact with the rotors during this process. These pads won't last forever. The friction mentioned earlier will inevitably wear them down over time. Let the pads get too thin, and your brakes won't work as effectively as they should. For safety's sake, it's imperative that you get new ones installed at the first sign of trouble. Should you notice any of these five red flags, ask an auto repair shop to replace the old pads ASAP. 

1. You hear a squealing noise.

Picture this: You’re out driving with the radio off and the windows rolled up. In the relative quiet, you hear a faint scraping, squealing, or buzzing sound. You also observe that, whenever you hit the brakes, that mysterious noise goes away, only to return again as soon as your foot comes off the brake pad. What’s going on here?

Today, most—but not all—brake pads are manufactured with built-in “wear indicators.” The sole purpose behind these things is to emit that unpleasant screech you just heard. Wear indicators are metal tabs located near the top of typical brake pads. When the pad itself wears down to a dangerous extent, the indicator will scrape against the rotor. This creates a distinctive grating noise which warns the driver that his or her current pads are in danger of eroding away altogether.

2. You hear a clicking noise.

In some cars, the brake pads fit snugly into a special holding device. Other vehicles keep them steady with clips, bolts, or pins. At all rates, the common goal behind these designs is to keep the pads from wobbling around. If they become loosened somehow (perhaps after a part of the surrounding hardware gets damaged), they’ll begin to rattle. What then results is a clicking sound that rings out whenever the brake pedal is pushed or released.

3. Bringing the car to a stop takes more time than it used to.

This problem has a name and that name is “brake fade.” More often than not, it’s the direct result of intentionally applying the brakes over a vast distance without bringing the car to a full stop. From time to time, such a maneuver might be necessary, particularly when driving down a mountainside or over a winding road. However, if this is something you do frequently—say, if you live in a hilly area where you must regularly drive downhill—it will take a toll on your braking mechanism over time. By forcing the pads to make contact with the rotors for a long, uninterrupted period, both components will heat up. In the process, their ability to generate needed friction against each other is reduced over time. As a result, you’ll find that your car won’t come to a complete stop as rapidly as it once did.

4. The nose of your car pulls to one side when you brake.

Your vehicle’s brake pads won’t always wear out at the exact same rate. Sometimes, those on one side will get thinner faster than their counterparts on the other side. Should this occur, the car may pull slightly to the left or right once you hit the brakes. Leave the problem unchecked, and you’ll put unnecessary stress on your steering rack (plus your vehicle’s ball joints, steering knuckles, and wheel bearings). Don’t risk it: Have a mechanic investigate the problem immediately.

Note that brake pads might not necessarily be the cause behind this particular symptom. It may also stem from such other issues as uneven tire pressure, a faulty wheel bearing, or malfunctioning brake caliper. With that said, if unevenly-worn pads really are the culprit, two new sets should be installed in one session.

5. The brake pedal vibrates when pressed.

Does the brake pedal violently shake whenever you step on it? Pads might be causing the problem. Brake pads are typically held together with a kind of binding resin. As each pad wears down, this adhesive gets hot and gets smeared across the rotor. Under ideal circumstances, it will form a layer that’s evenly spread over the disc’s surface. But if a pad gets overheated, the resin may not be distributed uniformly. Mechanics call this issue “glazing” and it can cause brake pedals to vibrate.

A pulsating brake pedal isn’t a trustworthy one. If this issue goes unchecked, your ability to brake safely could be compromised. When it comes to brake pad upkeep, stay safe and don’t procrastinate.

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