What is the reason for the brake disc still shaking after being resurfaced twice?
3 Answers
The reason why the brake disc still shakes after being replaced several times is due to an issue with the wheel's dynamic balance. It is necessary to perform a dynamic balance test to solve the problem. The braking system is crucial for the vehicle as it affects driving stability and safety. More details about the braking system are as follows: 1. Introduction one: The key components of the braking system include the vacuum booster pump, master brake cylinder, wheel brake cylinder, brake pads, and brake disc. The brake disc and brake pads are wear parts that need to be replaced regularly. As the vehicle's mileage increases, the brake disc and brake pads will continue to wear. 2. Introduction two: The braking device creates friction between the brake pads and the wheel hub or disc, converting the kinetic energy during driving into heat energy in the process.
Last time my car also had severe brake rotor shaking. I had it resurfaced twice but it didn’t help – it felt like the wheels were about to fly off. After careful inspection, I finally realized the issue was in the suspension system: the control arm bushings had aged, causing uneven force distribution. I also found that poor brake rotor heat dissipation can easily lead to warping, especially after mountain driving or frequent hard braking – the metal material can’t withstand high temperatures and tends to deform. Another reminder: check the wheel hub bearing clearance. Loose bearings can cause the entire wheel to wobble, making the brake rotor shake along with it. My advice is to find a reliable repair shop to thoroughly inspect the entire chassis system. Don’t just focus on the brake rotors – sometimes the real problem hides where you can’t see it.
I've encountered this situation twice before. If the brake still shakes after resurfacing, it's most likely an installation issue. Last time when I got new brake discs, the apprentice didn't tighten the screws to the standard torque, and the shaking returned within two months. Actually, brake shaking could also be caused by loose steering linkage ball joints, or problems with related components like deformed steering knuckles. Also, pay attention to material compatibility when replacing brake pads - pads that are too hard will chew up the discs, and resurfacing won't last long. I suggest having the mechanic measure the brake disc runout with a dial indicator - if it exceeds 0.05mm, resurfacing is pointless. Finally, check if the ABS sensor has iron filings stuck to it, as signal interference can also cause erratic braking.
