New brake discs, brake pads. What causes brake chatter?

If your brakes are still shaking after installing new brake discs and pads, it could be one of the following reasons:

Brake discs are not installed correctly: If the brake discs are not installed correctly, such as bolts that are not properly tightened or the brake discs are not aligned with the hub, it can cause brake jitter. Therefore, you should make sure that the brake discs have been installed correctly.

Uneven brake disc surface: An uneven brake disc surface can be caused by excessive wear, overheating, or bending. In this case, the brake disc needs to be re-smoothed or replaced.

Uneven wear of brake pads: If the brake pads are worn unevenly, it can cause brake jitter. This can be caused by poor quality brake pads or brake pads that are not installed properly. Therefore, you should make sure that the brake pads are properly installed and that you choose high-quality brake pads.

Brake system failure: Brake shake can also be caused by a malfunction of other parts of the brake system, such as a cracked brake hose or a stuck brake caliper. In this case, other parts of the brake system need to be checked to make sure they are working properly.

If you are not sure what the problem is or cannot solve the problem, it is advisable to consult a professional car mechanic for inspection and repair. The braking system is an important part of the car's driving safety, and any faults should be resolved as soon as possible.

1. The plane of the brake disc, the closing head and the shaft head are uneven; 2. The manufacturing error of the brake disc leads to brake jitter; 3. The torque of the split disc and the closing screw is different, resulting in unevenness; 4. There is an error in the running-in process of the disc, so that the brake pad is not evenly melted into the brake disc; 5. Drag brake or driving habit problems, so that the brake pad is not evenly attached to the brake disc; 6. Other reasons: deformation of the horns and lower swing arm, excessive braking force and frequency, which will lead to overheating of the brake disc and brake pads, and deformation in case of cold are all causes of brake shaking.

It is normal for the new brake disc and brake pads to not run in well, and it is normal for the brakes to shake a little, and they will not shake after running in for a while.

Brake pads do not cause shaking. Most of the reasons for the shaking are due to the deformation of the brake disc in the alternating cold and hot conditions at high temperatures or the warping of the brake disc after re-discing, which has nothing to do with the brake pads. As for why you just change the pair, it is estimated that the reason is that the latter is very compressible, and the product is able to absorb this warpage and deformation of the brake disc.

In the original car supporting standard, compressibility is a very important item, requiring the compressibility of the brake pad to be between millimeters under the normal braking force, so as to ensure the response speed of the brake pad under emergency braking conditions. So, all things considered, if it's good to replace the brake pads because of shaking, you may not be happy.

Hello! Generally, the causes of brake shaking are, brake pads or brake discs are worn unevenly, and slight deformation occurs, resulting in different contact surfaces during work, resulting in shaking.

Yes, this has something to do with the quality of the brake pads, and it is better to replace the brake pads with the original ones, after all, it is related to life safety.

Why do the new brake discs shake Yes, there will be jitter and abnormal noise in the new modified disc parts, and they will disappear within 500-2000 km. Please follow the normal driving method when running-in, do not mistake that the new braking system will have an immediate braking effect, first do some continuous low-speed braking test, and then increase the speed and then do another continuous braking test, do not try to slam on the brakes to lock the brakes, only slowly increase the speed and continue to repeat the above steps to achieve the perfect run-in. The causes of brake judder are as follows:

1. The plane of the brake disc, the closing head and the shaft head are uneven; 2. The manufacturing error of the brake disc causes the brake to shake; 3. The torque of the split disc and the closing screw is different, resulting in unevenness; 4. There is an error in the running-in process of the disc, so that the brake pad is not evenly melted into the brake disc; 5. Drag brake or driving habit problems, so that the brake pad is not evenly attached to the brake disc; 6. Other reasons: deformation of the horns and lower swing arm, excessive braking force and frequency, which will lead to overheating of the brake disc and brake pads, and deformation in case of cold are all causes of brake shaking. @2019

Brake shake requires the replacement of the brake disc. If you still shiver after changing the brake disc, it is most likely that the brake disc and the brake pads do not match, and one of them is hard, which is the most common cause of brake shaking.

When installing the brake disc, if it is not in place or the brake disc is not fixed properly, this phenomenon may also occur, and you can try to replace the brake pads together. When changing the brake pads, it is best to replace the brake pads provided by the original spare parts, only in this way can the braking effect between the brake pads and the brake disc be the best and the wear is minimal. When changing the shoe pads, you must use special tools to push the brake cylinder back, and you can't use other crowbars to press it back, which can easily cause the brake caliper guide screw to bend and make the brake pads stuck.

Before starting the brake, it is best to spray the brake system with a special brake cleaning fluid to avoid the powder from entering the respiratory tract and affecting health. Loosen the hub screws of the wheels that need to change the brakes, pay attention to loosening, do not completely unscrew them, jack the car well, and then remove the tires for replacement. (Photo by photo:.)

Pacific Automobile Network Wu Binbin).

The braking system is very important, when the braking system has an abnormality, it must be dealt with in time, so what is the situation of brake body shaking?

1. The engine foot is aging, the engine foot is the shock absorption system of the engine, when the engine foot is aging, it will cause the engine to shake during operation. In addition, the position of the steering wheel in the cab can also be noticeably shaken during idling.

2. The brake disc is worn, when the brake disc is used for a period of time, it will slowly wear out, once the wear is in a very uneven state, it will cause the vehicle to shake during the braking.

3. The front tire pressure is insufficient, if the front tire pressure is in a serious situation, then the vehicle will shake during braking.

4. The four-wheel alignment data is abnormal, if the four-wheel alignment data of the vehicle has obvious deviations, then when the vehicle is running fast, there will be shaking when stepping on the brakes.

5. Tire aging, if the tire is not replaced for a long time, resulting in tire aging, and the rim of the tire has serious deformation, it will also cause the vehicle to shake during braking.

The reasons for the brake shake when you step on the brakes are as follows: uneven brake disc surface, large deviation of wheel alignment data, and tire pressure that is too high or too low.

1. The surface of the brake disc is uneven, and the radial runout is too large, so that when braking, the contact between the brake pad and the brake disc is loose and tight, and the braking force is sometimes large and sometimes small, resulting in body vibration, which is generally obvious when the brake is lightly stepped on.

2. The deviation of wheel alignment data is large, especially the front wheel alignment angle is inaccurate, and the toe is too large, which makes the vehicle difficult to control when accelerating, and the shaking is generally not large, that is, it is awkward.

3. The tire pressure is too high or too low, and the higher the speed of the tire pressure is too high, the more the body will vibrate. If the tire pressure is too low, the body will feel flickering and deviate.

Advantages of anti-lock brakes

1. When the car brakes, keep the braking direction of the car stable.

2. When the car brakes, make the car maintain its steering ability.

3. When the car brakes under most road conditions, it can shorten the braking distance.

4. It can improve the service life of automobile tires.

1. The brake disc is extremely uneven and worn, and the vehicle is easy to shake when stepping on the brakes.

2. The deviation of the vehicle's four-wheel alignment data is very large, and when the vehicle speed is high, there is a shaking phenomenon when the brakes are stepped on.

3. The front tire pressure is seriously insufficient, and the car will also shake when stepping on the brakes.

4. The tires of the vehicle are aging, and the rims of the tires are seriously deformed.

5. Inferior brake pads are used, and the brake pads are seriously abrasive.

6. The wheel hub of the car is injured and deformed.

7. The fixing screw of the lower swing arm of the car is loose.

The maintenance method of the brakes is:

1. High temperature protection, prevent corrosion of the brake system, prevent the brake pad from biting due to high temperature, and eliminate the screaming of the brake pad.

2. Change the brake fluid regularly.

3. Clean the oil stains, dirt and friction dust of the brake disc, brake drum and any parts to keep the brake disc heat dissipated well.

4. Regularly check the thickness of brake pads or brake shoes.

Precautions for choosing brake pads:

1. The brake shoes (blocks) on the same axle must be replaced at the same time, and they must be the same kind of brake shoes (blocks) to maintain the consistency of the left and right braking forces.

2. Do not buy brake shoes (blocks) with defects such as oil, cracks, blistering, and grooves on the surface of the product.

3. Choose the matching brake pads according to your own model, try to buy matching products from the manufacturer's direct sales store, or go to the designated car maintenance point to replace the brake pads.

In general, if the thickness difference between the two sides of the brake pads on the fixed brake caliper reaches 1 5mm, the thickness difference between the brake pads on the floating brake caliper reaches 3 0mm.

However, it is not possible to accurately determine whether the brake pads are worn by a simple visual observation, so it is best to measure the thinnest part of the brake pad with a ruler to see if it is within the permissible range (depending on the service manual of the specific model).