What Causes Brake Pulsation and Vibration?
3 Answers
The causes of brake pulsation and vibration include uneven wear of the brake disc or damage to brake components. Below are the specific reasons for brake pulsation: Uneven Disc Wear: If the outer side of the brake disc is thicker than the inner side or vice versa, during braking, the brake pads clamp the disc vertically. If the disc is uneven and does not fully contact the pads, it will cause vibration. The higher the speed, the more severe the vibration, making it harder to stop the vehicle. Damaged Brake Components: If you feel the brake vibrating when applying the brakes, especially at high speeds on highways, it indicates that the surface flatness of the brake disc or pads is off. Loss of brake elasticity can involve damage to many components.
I've experienced a jumping or trembling sensation when braking before, which is quite common. The main cause is uneven brake disc surfaces, likely due to frequent braking or emergency stops causing them to overheat and warp. It could also be severely worn brake pads or foreign objects contaminating the contact surface. Additionally, loose wheel hub bearings can transmit vibrations, causing shaking during braking. Tire issues like uneven pressure or imbalance may also make the car wobble. I must remind you not to ignore this problem, as it affects braking distance and can easily lead to accidents. It's best to visit a repair shop as soon as possible for a technician to inspect the brake system. After confirmation, replace parts or resurface to resolve the issue, ensuring safety on the road. Avoiding sudden braking during normal driving can extend the lifespan of components, saving money and providing peace of mind.
It's really annoying when the car shakes when braking. I think there's a reason for this. A common cause is warped brake rotors, especially after long downhill drives when the rotors get hot and are prone to bending. Another issue could be worn-out brake pads that are too thin or contaminated with oil, leading to poor contact. It might also be a problem with the suspension system, like loose ball joints causing unstable braking force. Sometimes, uneven tire wear can also affect it. I suggest doing a quick check yourself for any unusual noises or changes in vibration, but don't attempt any hard fixes—leave it to a professional shop for a thorough inspection. Safety first; don't let a small issue turn into a big problem. Remember to check the brake components during every maintenance session to prevent issues in advance and avoid last-minute panic.
