To ensure that your rotors stay dirt-free, you can get them cleaned with a brake cleaner that doesn’t leave any residue after its solvents evaporate. Sometimes even new rotors can experience brake pad wear when they’re inflicted with dirt or grease accumulated during storage. They may ask you to hit the brake pedal and check if both the pads squeeze the rotor simultaneously. If you think that you have a misaligned brake pad, it’s best to call a mechanic to inspect the installation. If you have a misaligned brake pad, you’ll notice braking issues within weeks or months of a new brake pad installation. However, if there’s improper pad installation, it leads to uneven pad wear. The correct alignment of a brake pad ensures that it squeezes the rotor evenly. And if the slide pins are beyond repair, it’s a good idea to replace them with a new slide pin. As a result, the brake caliper gets stuck in one position causing the brake pad to wear out more quickly.Ī quick solution is to use a wire brush and some grease to get rid of the corrosion. When these sliding pins become corroded or if you have a stuck piston, they prevent the caliper from sliding smoothly. Corroded Slide PinĪ slide pin allows the brake caliper to slide back and forth so that the brake pads can come in contact with the rotors. And, if needed, you can go for a caliper rebuild or brake replacement. When that happens, you should visit an auto repair shop or book a brake service appointment to have an expert look at your brake caliper as well as the guide pins. And in some cases, corrosion from the outer caliper can reach the caliper bore and squeeze the bushings. Sometimes, rust or debris on the caliper can also lead to a sticky piston and guide pins, which means that the piston won’t slide efficiently, leading to increased brake pad wear. This causes the pad to be in constant contact with the brake rotor and results in faster brake pad wear. Sometimes, the rubber seal that pulls the caliper piston away loses its ability to pull back. Caliper FailureĪnother common cause of an uneven brake pad is a failed caliper and piston.Ī brake caliper contains a piston that exerts pressure on the brake pads to stop the vehicle. The only option left to counter the impact of DTV is to get the brake rotor replaced.Īnd, if the brake rotor and the pad are worn past repair, you should also get your caliper piston and its rubber boot inspected as it may fail to retract properly after being out so far. However, a mechanic can only smoothen out a rotor so many times before this method becomes ineffective. You can also ask them to clean the rotors with a brake cleaner before reinstalling to remove any brake pad dust or rust, as these are the major contributors to brake wear. Dirt and debris between the rotor and the brake pad may also lead to Disc Thickness Variation.įirst, you can ask a mechanic to iron out the flat spots. This condition can also arise from a sticking brake caliper, rust, corrosion, and frequent slamming on the brake. The brake pad comes in contact with more flat spots of the rotor, which consequently causes the brake pad to wear out faster and more unevenly than the rest of the pads in your car. Disc Thickness Variationĭisc Thickness Variation (DTV) is a mechanical term that refers to a condition when the brake rotors of your vehicle have different levels of thickness. However, uneven brake pad wear can result from several other reasons. The car’s momentum puts more strain on the front brakes, which can cause them to create more friction and wear out faster than a rear brake. Usually, the front and rear pads wear differently. 7 Causes And Solutions For Uneven Brake Pad Wear
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