What Causes Brake Vibration When Braking?
2 Answers
Reasons for feeling brake vibration when braking: 1. Issues with the car's brake discs. 2. Problems with the wheel hub: If the wheel hub is faulty, the corresponding wheel may not rotate on a flat plane, leading to vibration during braking. Here's an introduction to steering wheel vibration during braking: 1. Slight vibration in the steering wheel when braking is normal, due to road resistance coefficient and vehicle deceleration effects. 2. However, if you gradually press the brake pedal at around 60 mph and feel vibration first from the pedal, followed by steering wheel wobbling as pressure increases, you should measure the brake disc runout. If the disc edge shows significant runout, the brake disc and pads need replacement. 3. If the entire front end shakes during braking, check for excessive play in the tie rod ends and lower control arm ball joints.
I find that brake judder is quite common, usually caused by uneven brake disc surfaces. After frequent hard braking or prolonged driving, disc brakes may experience thermal deformation or uneven wear, leading to uneven contact between the brake pads and the discs, which causes wheel vibration. This may also be accompanied by abnormal noises and increased braking distance. It is recommended to first check the thickness and runout of the brake discs. If they exceed the wear limit, they must be resurfaced on a lathe or replaced entirely. During regular maintenance, pay attention to cleaning dirt from the braking system to prevent debris from embedding. Humid weather can also accelerate rust-related issues. Driving with less aggressive braking can extend the lifespan of the discs and pads, ensuring driving safety comes first.
