What is the reason why the steering wheel shakes so badly when you tap the brakes????

This fault may be caused by the uneven contact surface between the brake pad and the brake disc, which can be polished under the brake pad and treated with the brake disc light.

When the car is braked to a certain speed, the left and right wheels of the coaxial wheel appear out of sync once or more in a circumference due to the imbalance of braking torque, and produce alternating braking one loose and one tightened phenomenon. When the braking torque imbalance phenomenon reaches a certain extent, the left and right two wheels produce alternating unequal speed rolling, which forms the left and right swing back and forth of the wheel, and this back and forth swing reaches a certain frequency, that is, the vibration is formed, so this fault is often produced when the vehicle speed and the braking torque are within a certain range.

Because the contact circumferential area of the friction pad and the brake drum is greater than 2 3 of the circumferential area of the brake drum, even if the braking torque is unbalanced, it will not produce alternating cycles in a week, so it is not easy to produce this kind of failure.

The circumferential contact area between the friction pad of the disc brake and the brake disc is usually less than 1 4 of the circumferential area of the brake disc, so in a week, there may be 4 vibration cycles, so this fault occurs in the vehicle with the steering wheel of the disc brake.

The main reasons for the unbalanced braking torque are: uneven thickness or swing of the brake disc, uneven friction coefficient of the friction plate, etc. When the thick part of the brake disc passes through the friction pad, the braking torque is large; When the thinner part of the brake disc passes through the friction plate, the braking torque is small, which forms a vibration wave.

In the same way, the swing of the brake disc and the uneven friction coefficient of the friction pad will also produce vibration waves.

The steering wheel shook to the shelf, and the chassis was carefully inspected to see the steering cage, three fork shock absorbers and springs. If the tires wear out differently, they will come off. If there is no problem, reposition the four wheels and balance the tires.

After four wheel alignments, readjust the steering wheel. The steering wheel is eccentric, and the car will deviate slightly. Hope it works for you If the tires are deformed, set the front axle and try to turn the wheels, check the static balance of the wheels and if the tires are too deformed, and replace them if they are deformed.

The dynamic balance of the tire is not accurate.

Inaccurate tire dynamic balancing will cause the steering wheel to shake within a certain speed range, and the wheel dynamic balancing needs to be redone. Caused by the vehicle's transmission system, it is necessary to check whether the front wheel alignment angle meets the requirements, and if there is misalignment, it should be adjusted. If the ball joint of the half-shaft tie rod is worn loose or the rubber sleeve at the joint falls off, replace the damaged part.

For the loss of control of the steam direction, the correct way to deal with it is that the driver should not panic, but should immediately and easily open the accelerator pedal, so that when the motor vehicle is driving in low gear, the handbrake should be tightened evenly and hard, and if the speed of the vehicle drops significantly, the foot brake should be stepped on to make the vehicle gradually stop.

If the vehicle is driving at high speeds, especially when the front and rear wheels are not in a straight line, use the handbrake to slow down and then apply the emergency brake. At this time, other vehicles and pedestrians should be given emergency signals, such as turning on emergency flashing lights, honking horns, and gesticulating. Emergency braking cannot be used immediately to avoid overturning.

Steering wheel shake when braking is likely caused by too much clearance between the brake disc and brake pads. But don't be nervous if you encounter a slight shaking, just deal with it as soon as possible. Generally speaking, the horizontal deflection of the brake disc is exceeded, and when the vehicle brakes at high speed, the brake pedal will jump slightly, which will be transmitted to the steering wheel through the relevant steering system, causing the steering wheel to shake left and right.

After normal wear, the brake disc exceeds the limit thickness and must be replaced. In addition, if the wear of the brake disc does not exceed the minimum limit thickness, the friction surface can be machined with a machine tool so that the deflection of the brake disc is less than millimeter, and then the brake disc can be reused. The faster the steering wheel shakes during braking, the more obvious it is caused by a slight deformation or uneven surface of the front brake disc.

Each front disc brake has a brake disc. After using it for a period of kilometers, depending on driving habits, the brake discs can become slightly uneven due to high temperatures or uneven wear of the brake pads.

The steering wheel suddenly shakes at high speeds. Often, braking too hard or too often will cause the brake discs and brake pads to overheat and deform when cold, resulting in steering wheel jitter. Generally, the symptoms can be solved after replacing the brake discs and brake pads.

If the vehicle is parked for too long, the brake disc will rust and the friction surface will be uneven. The steering wheel shakes when braking at high speeds. The front brake disc is slightly deformed or the surface is not smooth.

Each front disc brake has a brake disc.

At this time, you can polish the brake disc, or change to a new brake disc, change to a new brake disc, ** is not very expensive, you can go to the 4S shop to change a new one.

At this time, you can tighten the screws of the steering wheel, and you must clean up the carbon deposits of the engine in time, and do not step on the brakes of the door, and you must reserve some positions in advance.

At this time, it is necessary to reduce the speed of the car, and then drive the car to the 4S shop for repair, because at this time there is a problem with the steering wheel, if it is not replaced, there will be a big traffic accident in the future driving process.

The reason for the shaking and vibration of the steering wheel when stepping on the brakes: it may be caused by the deformation of the brake disc, it is recommended to remove the brake disc to the lathe to grind a plane, and it needs to be replaced in serious cases. Secondly, check whether there is a problem with the brake cylinder bracket and chassis ball cap, and finally, balance the tires.

After a long time of driving in the car, and there has been a certain number of braking processes, the brake disc has a high temperature, when the emergency braking to ABS starts.

ABS is an anti-lock braking system.

After the brake sub-cylinder caliper continuously tightens and relaxes the brake disc, the brake disc is intermittently stretched strongly, and heat is generated in the vehicle that applies brake deceleration.

When there is too much heat, the brake rotor can deform. At this time, the brake disc will be deformed like a wave, and when braking at high speed, when the brake disc is restrained by the brake caliper, the uneven brake disc will vibrate, and be transmitted to the body and steering wheel through the steering lever and suspension, resulting in body vibration and unstable direction.

Trembling vibration when braking is usually caused by uneven wear of the brake disc, such as the outer side is thicker than the inner side or the inner side is thicker than the outer side, when braking, the brake pad is vertically clamped the brake disc, and the brake disc is uneven and does not fully fit the brake pad will tremble, the higher the speed, the more shaky, the more difficult it is to brake the car.

What is the cause of shivering vibration when braking.

Brake shake can also occur over a period of time when inferior brake pads have been used or replaced with new ones. Due to the more metal content in the inferior brake pads, the performance is harder, and the friction with the metal brake disc is easy to resonate to amplify the vibration and shake, so a mileage after replacing the new brake pads should be driven cautiously to avoid emergency braking.

If the steering wheel shakes when braking, it is most likely caused by an uneven brake disc. Brake discs are an important component in the braking system. When the brake pedal is pressed, the piston of the caliper pushes the brake pads so that the brake pads can clamp the brake disc and the vehicle slows down.

When the surface of the brake disc is uneven, the steering wheel will clamp the brake disc after the brake pads clamp it.

If the steering wheel shakes when braking, it is most likely caused by an uneven brake disc.

Brake discs are an important component in the braking system. When the brake pedal is pressed, the piston of the caliper pushes the brake pads so that the brake pads can clamp the brake disc and the vehicle slows down.

When the surface of the brake disc is uneven, the steering wheel will shake after the brake pads clamp the brake disc.

The solution to this problem is simple, you can directly replace the brake disc, or you can have a professional polish the brake disc, which can make the surface of the brake disc smooth.

When maintaining your car, be sure to check the brake system. The braking system is related to driving safety. During maintenance, check the flatness of the brake disc and the thickness of the brake pads.

Brake fluid is also important. It is a liquid that absorbs water easily. The brake fluid pot is not sealed, and there are air vents in the pot so that the brake fluid can absorb moisture from the empty air.

When checking the brake fluid, check the moisture content of the brake fluid. If the moisture content of the brake fluid reaches 3%, the brake fluid needs to be changed immediately. Excessive moisture content in the brake fluid can lead to a decrease in braking force, which can lead to longer braking distances.

If you use your own car in some wet places, the brake fluid is very easy to deteriorate.

It is better to go to a 4S shop to change the brake fluid. Some small repair shops can't exhaust air at all, which reduces braking power.

What is the cause of brake chatter.

Brake jitter can be involved for a number of reasons. The most common cause is a problem with the brake pads and discs.

It may be that one side of the brake disc is badly worn. The brake disc is severely worn on one side, usually due to poor return of the brake cylinder.

Solution: Check the brake cylinder first if there is a problem. If there is a problem with the brake cylinder, repair or replace it. If there is no problem with the brake cylinder, replace the brake disc directly.

It can also be jitter caused by deformation of brake pads or discs. Any unevenness or deformation of the brake discs and pads can cause brake chatter. If this is the reason, it may be due to substandard materials and the use of inferior brake pads or discs.

In addition to the brake pads and discs, the deformation of the wheel hub can also cause brake chatter. If the brake pads and discs were replaced, were still working at the time, and after a while they started shaking again, the side hubs should be checked.

Solution: If the cause is determined to be the hub, replace the hub.

Problems with the dynamic balance of the tires can also cause shaking when braking. If this is the case, the tires need to be dynamically balanced again.

The specific cause needs to be determined by a professional examination. Only by identifying the problem can we remedy it. Causes of brake steering wheel shake What causes brake shake @2019

It is generally caused by the excessive amount of space of the brake disc and brake pads, and the unbalanced or deformed surface of the brake system. If the steering wheel shakes slightly during normal driving, the shaking will be more serious than before when the brakes are pressed.

1. Dynamic balance problems; 2. Wheel hub problem; 3. Chassis parts problems. Stepping on the brakes of the steering wheel with a slight vibration is normal, because there is the influence of the drag coefficient of the ground and the deceleration of the car. However, usually slowly press the brake pedal up and down at 60 miles, the first to shake from the pedal board, and the steering wheel also slowly swings slowly with the deepening of the pedal force, and it is necessary to test the car brake.

What are the causes of brake steering wheel shaking 1. Dynamic balance problems; 2. Wheel hub problem; 3. Chassis parts problems. Stepping on the brakes of the steering wheel with a slight vibration is normal, because there is the influence of the drag coefficient of the ground and the deceleration of the car. However, usually slowly press the brake pedal up and down at 60 miles, the first shake from the pedal board, and the steering wheel gradually swings with the deepening of the pedal force, so it is necessary to detect the amount of shake of the car brake disc.

When driving fast, the steering wheel suddenly shakes. Often, excessively frequent braking can cause the car brake discs and car brake discs to overheat and deform when cold, causing the steering wheel to shake. Usually, the symptoms can be solved after replacing the car brake disc and the car brake disc.

If the vehicle is parked for too long (more than 20 days), it will also cause the brake disc to rust, making the friction surface uneven, and the steering wheel will shake when braking in fast driving. After a period of time, the brake disc will become slightly uneven due to high temperatures or uneven grinding of the brake pads. As a result, vibrations are generated when braking.

What is the performance of a broken brake cylinder The performance of a broken brake cylinder: 1. The brake is soft; 2. Sudden failure of brakes; 3. Brake deviation; 4. The brake pedal does not return or returns slowly. The brake cylinder is an indispensable part of the brake system, and its main function is to push the brake pads (rubbing against the brake drum), and then play a braking effect.

Soft brake: When we step on the brakes, if we feel that the texture of the brakes is obviously soft, and the stability of the brakes decreases after continuously pressing the brakes, it may be that the piston seals of the brake master cylinder and driven cylinder are poor, or a certain position of the brake pipe is broken, resulting in oil leakage. At this time, it is necessary to pay attention to whether there are traces of brake fluid.

Sudden brake failure: If the car feels a momentary sudden failure when braking, you need to pay attention to whether the brake fluid is lost, and then check whether there are brake marks in the brake master cylinder, sub-cylinder and oil pipe. If so, it means that the brake cylinder or master cylinder has leaked significantly and must be repaired immediately.

Understanding the consequences of brake failure is very dangerous.

Brake misalignment: If you feel that the brake direction is off, it is likely that the brake cylinder is corroded and rusty, or there is piston expansion inside, but it may also be caused by uneven brake wear. However, this phenomenon must be addressed immediately, as directional deviation is difficult to control, especially for cars that do not have ABS anti-lock braking systems, which is dangerous.

The brake pedal does not return or returns slowly: If the brake pedal does not rise and there is no resistance after pressing the brake pedal, it is what we often call the phenomenon of brake not returning. At this time, we need to check whether the brake master cylinder and the spare parts of the cylinder are damaged.

Secondly, this phenomenon can be caused by insufficient brake fluid or oil leakage.

What is the cause of brake steering wheel shake @2019