Car shakes when Braking: How To Fix it? | Why Does My Car shake when i Brake?

car shakes when braking

Do you feel unpleasant vibrations or car shakes when braking while driving a car?why does my car shake when i brake? 

For example, the steering wheel trembles on the highway, the shock of shifting becomes large when increasing the speed, and the engine suddenly feels rattling.

Rattling, buzzing, rattling …

There are various types and causes of vibration, but if there is strong vibration, there is a possibility that the car is malfunctioning. 

Vibration is one of the car’s caution signs, although it can be corrected by a little bit. If left untreated, it may lead to a major malfunction. 

If you understand the cause of the vibration, such as where the vibration is occurring, you can see the condition of the car little by little. Let’s look at some examples.

Don’t worry about the car shaking, check these parts

 why does my car shake when i brake

What is car shaking?

We all know that a car is composed of multiple systems and complex components. If one of the systems fails to work properly, you may hear or “feel” something wrong with it.

For example, if some parts are not working properly, it may cause the vehicle. Shaking.

Careful observation of when, where, and how the car swayed will help repair and diagnose the problem.

1. Shaking when idling

There are many cases of car shaking, and idling shaking is one of them. General idling jitter may indicate a problem with the engine.

First of all, a common cause of shaking during idling may be loose engine mounts. Engine mounts are the connecting parts between the engine and the car.

They can ensure a safe connection to the electric motor and at the same time reduce the vibration generated by the engine. When these connections wear out, you are more likely to feel the vibration of the car.

Secondly, the shaking of the car during idling may also be caused by fuel injector failure, spark plug wear or defective timing belt . 

Some of these problems can be solved by simple engine maintenance or fuel system cleaning, but most of them may require more professional engine maintenance .

2. Shaking when accelerating

If your car trembles when accelerating, it may be the cause of loose or damaged engine mounts.

As mentioned earlier, damaged and loose engine mounts cannot effectively absorb the vibrations generated by the crankshaft engine, so you are likely to feel their shaking when you step on the accelerator.

In some cases, misalignment of the steering and suspension systems can also cause the steering wheel to shake when accelerating. These two issues require more in-depth inspections.

3. Car shakes when braking

Car shakes when braking/why does my car shake when i brake?: Some car owners may find that when the car is starting and driving, there is no problem at all, but the steering wheel, brake pedal or the whole car will shake when stepping on the brakes, especially when driving at high speeds.

The shaking of the car when stepping on the brake may indicate that the brake disc is deformed. These problems may occur when the brake pads are worn or insufficiently lubricated.

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The braking system is related to the safety of driving. Ignoring this problem may lead to accidents, so you must pay attention to it.

4. shaking when driving fast

During high-speed driving, if you feel that the car is shaking, it may be caused by misalignment of the wheels or improper tire balance . Usually, you can judge which of these two problems is to blame based on the shaking you feel.

If the vibration is coming from the steering wheel, your car may need to be checked for alignment and repaired .

If they come from the floor and seats, you may need to balance the tires.

Wheel misalignment can occur when the suspension assembly is not tilted correctly, and tire imbalance can occur when the weight of the car is not properly distributed across all four tires. 

This incorrect weight distribution can cause excessive shaking, especially when you are driving at a speed of more than 90 kilometers per hour.

Unbalanced tires will wear out prematurely, leading to driving hazards. Topland maintenance experts recommend replacing tires to solve this problem.

If the car is obviously shaking, you must go to the 4S shop for a complete vehicle inspection as soon as possible, so as to effectively prevent the danger of driving.(Car shakes when braking)

Car vibration caused

Wheel balance is the most common cause of vibration

 why does my car shake when i brake

While driving on the highway, does the steering wheel suddenly quiver at a fixed speed? The most likely cause is an unbalanced wheel.

What is wheel balance?

The wheels of a car appear to be a perfect circle, but in reality there are slight distortions and differences in weight. 

If you ride with the balance out of balance, the wheel will shake when you rotate at high speed, and that will be transmitted to the steering wheel.

A small weight (balance weight) weighing a few grams prevents this. If you look closely at the wheel, you’ll see something like lead on the edge. 

If you can’t find it, it’s likely that the wheels are out of balance, so ask your car shop or dealer to attach it.

For example, if you feel that you can run comfortably after changing tires, it is not only the new tires, but also the proper wheel balance is a major factor. Over time, if the steering wheel begins to quiver again, have a look at a specialty store each time.(Car shakes when braking)

Pay attention to the flat spots on the tires

 why does my car shake when i brake

Vibration due to flat spot

In addition to tires and wheels, abnormal air pressure and flat spots can also cause vibration.
Of these, the air pressure can be detected as an abnormality by checking it frequently. 

Also, be aware that if the air pressure is extremely low, it may cause a burst (tire rupture).

In addition, the phenomenon of flat spots where part of the tire melts also causes vibration. Flat spots can occur after sudden braking or long-term parking, and the tires literally melt and deform, causing vibrations at regular intervals even when running at low speeds. 

If you think something is wrong, stop the car and check it.

The car is touched from side to side

In addition to tires, uneven wear of brake pads and brake discs can also cause vibration. If you hear a loud, dragging noise or vibration when you apply the brakes, you suspect uneven wear.

Also, if the car touches the right or left at the same time you apply the brakes, it is possible that the braking effect is different on the left and right. 

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This is a phenomenon called “one-sided effect” of the brake, and in the case of hydraulic brakes, it is caused by bubbles entering the brake oil or the brake oil being depleted.

Brake abnormalities have a high risk of causing an accident, so if you feel any abnormalities, we recommend that you check them as soon as possible.

The engine is a treasure trove of vibration. Ride quality is improved by exchanging parts

car shakes when braking

If you stay in the same car for a long time, it will deteriorate here and there. Vibration can also occur due to deterioration of small parts. 

For example, an engine mount. The engine runs by the continuous explosion of fuel in the cylinder. Therefore, it can be said to be a treasure trove of vibration.

Deterioration of rubber causes vibration

car shakes when braking

An important part to prevent this vibration from being transmitted to the car body is a rubber part called the engine mount between the engine and the car body. 

Since it is rubber, it naturally deteriorates. As the engine mount deteriorates, you will feel a lot of vibration just by idling. You may have felt the vibration of the engine shaking back and forth when accelerating and decelerating.

However, deterioration does not cause a big trouble, but in the case of an old car, if you replace the engine mount, the vibration will disappear and it may greatly affect the improvement of riding comfort.

Although the engine mount itself is cheap, the cost of replacement costs a reasonable amount of labor. Talk to your wallet and decide when to replace it.

Unexpectedly common cylinder troubles

If the engine vibrates suddenly and at the same time you feel that the car is running out of power, it is possible that some cylinders are not moving. The engine consists of multiple cylinders such as 4 cylinders and 6 cylinders.

The engine runs smoothly by repeating the intake, compression, combustion / expansion, and exhaust of the fuel-air mixture at the perfect timing for each of these cylinders. 

If even one of the cylinders is not moving, the balance when rotating will be lost, vibration will occur, and power will not be output.

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However,even if if one cylinder is not moving,if it is a total of 6 cylinders or 8 cylinders, you may think “that?” When running on a flat road. You’ll see it clearly when you’re speeding up or climbing a hill.

Repairs range from easy repairs to complex ones that require the engine to be disassembled. 

However, if it is not fixed, fuel efficiency will deteriorate, and there will be inconveniences such as insufficient output and large vibrations.

Don’t miss the danger sign and stay with your car for a long time

car shakes when braking

There are various other causes of vibration. Vibration is unpleasant for whatever reason. That is why car manufacturers make it one of the important indicators of development.

Excessive vibration and noise can cause fatigue. In some cases, it may be a sign of danger. Especially when the vibration suddenly increases, it may indicate some signs. 

In such a case, it is recommended that you first see it at a specialty store without thinking “because it is the usual thing”. You want to stay with your car for a long time with early inspection and repair without overlooking the danger sign.(Car shakes when braking)

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