What is the reason why sometimes the tires shake when the car runs at high speed?

There are many reasons why a car shakes when it is running at high speeds, including car tiresTire pressureToo high, car tires are badly worn, tiresBalancingThere is a deviationWheel alignmentNot allowed.

Common specific reasons for car body trembling at high speeds:

1. The positioning angle of the front wheel is inaccurate, and the toe is too large;

2. The air pressure of the front forum is too low or the tire is unbalanced due to repair and other reasons;

3. The front spokes are deformed or the number of tire screws is different;

4. The installation of transmission system parts is loose;

5. The transmission shaft is bent, the dynamic is unbalanced, and the front shaft is deformed;

6. The shock absorber fails, the stiffness of the front leaf spring is inconsistent, and the frame is deformed.

Generally, you need to do tire dynamic balancing!

1. The surface of the brake disc is uneven, and the radial runout is too large. In this way, when braking, the contact between the brake pads 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 brakes are lightly stepped on.

2. The deviation of wheel alignment data is large. In particular, the positioning angle of the front wheels is out of alignment, and the toe is too large. In this case, it feels that the vehicle is difficult to control when accelerating, and the shaking is generally not large, but it is awkward.

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

4. Abnormal tire wear. Due to wheel alignment or rim deformation, the tire surface is worn inconsistently, causing the body to vibrate while driving.

5. The rim is deformed. The tires are mounted on the rims, and the rims are deformed even if the tires are deformed, resulting in uneven surfaces and inaccurate wheel dynamic balance, and vibrations when running.

6. The shock absorber fails. If the shock absorption fails, the impact on the tires when running at high speed will be transmitted to the car body without attenuation, causing the vibration of the entire body.

7. Tire dynamic balance problems. For example, after tire repair, wheel rim deformation, abnormal tire wear, tire piercing big nails or entrainment of large stones, etc., will destroy the dynamic balance of the tire.

8. Semi-axis resonance. This situation is generally caused by the bending of the half-shaft (front-wheel drive car) or the propeller shaft (rear-wheel drive car), because the bending destroys the dynamic balance of the propeller shaft, and the resonance will occur when running, most of which are vibrated at a certain speed, and there is no abnormality if it exceeds or falls below this speed.

9. Automatic transmission locking clutch problem. After the torque converter is locked, the engine power output and the gearbox input become a rigid connection, if it cannot be released in time when the brake is pressed, the gearbox will drag the engine back, causing vibration.

10. Engine power problems. Generally, it is ignition and oil supply failure, such as high speed and large load, due to insufficient ignition energy, fire failure or insufficient fuel supply of gasoline pump, so that the engine power suddenly decreases.

11. Shift point adjustment problem. Some models are designed to advance the shift point at high speed for fuel economy, and are generally gears above direct gear (such as 3rd gear). When the engine is low at low speed, the engine is not powerful at this time, there will be a slight shaking, just add a little oil over this speed range, it has no impact on driving performance, and it can also save fuel.

If there is a slight shaking or deviation of the body during driving, it is generally caused by the fault. There are generally three reasons for this.

1. It may be that the tire balance is not good, and the owner needs to do a four-wheel alignment and dynamic balance as soon as possible.

2. It may be caused by the deformation of the steel rim, which requires the owner to go to a professional repair shop for inspection, which generally occurs in vehicles with a long service life. Generally, when the car is replaced with new tires and new steel rims, it is necessary to do a tire balance, otherwise the steering wheel will be prone to shake when the counterweight is uneven. Body shake will have an impact on driving comfort and handling judgment.

3. It is caused by the unbalanced deformation of the transmission shaft, which generally occurs in more cars that have collided on the ground.

Frequency and precautions for changing tires:

Tires should be replaced every four years, even if they have less mileage driven in four years. When replacing a tire, be sure to look at the production date of the tire and don't buy it if the production date is three years ago. The date of manufacture is marked on the side of the tire, which is usually a four-digit number.

For example, 1019, which means that the tires were produced in the 10th week of 2019. When buying a tire, this type of tire cannot be purchased if it does not have a four-digit production date on the side of the tire. This is generally a deliberate four-digit digit worn out by the merchant in order to conceal the production date.

When changing tires, be sure to look at the size, speed class and load index of the tires.

The average family car tire is 91V, 91 represents the maximum load mass of 615 kg, and V represents the maximum speed that can be withstood is 240 km/h. The size of the tires is marked on the side, for example, 205 55R16, this set of numbers represents a tire width of 205 mm, a flat ratio of 55, R stands for radial tires, and 16 means can be mounted on 16-inch rims.

The flat ratio of 55 means that the height of the sidewall is 55% of the tread width, the larger the flat ratio, the thicker the tire from the side, and the smaller the flat ratio, the thinner the tire from the side.

If your car is equipped with zero-pressure tires, you should also replace them with zero-pressure tires when you replace them. Zero-pressure running tires do not have an explosion-proof function, but can continue to drive for a certain distance with the support of a hard sidewall after being punctured and leaking.

Analysis of the causes of car shake:

1. Suspension system problems.

Body shake is also related to the aging of the suspension system. It is mainly responsible for filtering out the shake of the engine when it is running, and if there is a problem with the suspension, these vibrations will be transmitted directly to the steering wheel and cab, affecting the driving. When the engine is idling, it is easy to cause shaking when the electrical system in the car is turned on.

The engine will increase the load when the electrical appliances are turned on, causing the idle speed to drop, and to compensate for the jitter caused by the idle slip, the engine will automatically increase the speed by partially. So, when the electrical system, especially the air conditioner, is turned on, the engine will often shake. This jitter is likely to be caused by the aging of the shock absorber and needs to be replaced in time.

2. Tire problems.

For tires, the tire must be balanced once when the car is replaced with new tires and new steel rims, otherwise the steering wheel will be prone to shake when the counterweight is uneven. If you find that the tire weight is not equal, you need to add lead to the inside of the rim to average the weight of the tires on both sides. Whether it is a general steel ring or a lightweight aluminum ring, it may deform or crack when subjected to a certain external force.

Deformation of the rim can cause shaking when driving, uneven weight of the rim can also cause shaking when driving, and incorrect angle of the rim can also cause shaking when driving.

3. Throttle problems.

The most common cause of car shake may be a dirty throttle valve and excessive carbon build-up in the fuel injector. After the car travels for a period of kilometers, the throttle valve will be too dirty to cause the throttle to close loosely or the idle motor to stagnate, resulting in the engine idling speed is too high, and the carbon deposits generated by the engine in this process will also cause the vehicle to shake, especially when starting the vehicle, the engine will shake more than normal, and even sometimes there will be a phenomenon that can not be started at one time. Therefore, when the body shakes, the first thing to do is to check the throttle and fuel injectors.

If you find that the throttle valve is too dirty or the fuel injector has too much carbon deposit, you should clean it with fuel injector cleaner or throttle cleaner in time.

4. The oil pressure is unstable.

If you still find that the body shakes after these are finished, it is recommended that you go to the repair shop to check whether the fuel supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is not normal, the intake pressure sensor is wrong and improper work will cause the body to shake.

If you find that the car shakes while driving, it is a fault caused by the tires. It may be that the tire has deviated, or it may be that the tire is not well balanced, and the balance of the tire has fallen off. If the vehicle does not deviate and do the tire dynamic balancing, it may also be that the wheel hub has been deformed by external impact, and you need to go to the repair shop to check to know.

There is also a possibility that the deformation of the transmission shaft is unbalanced, which occurs in the chassis collision of more cars. Body shake at idleIdling body shake at idle speed is a common situation encountered by many car owners.

Car driving tips.

1. Look at the car first when you get in the car.

Before getting into the car, go around the car to see if there is any oil and water leakage under the car, the tires, and the bottom of the car. You also have to open the lid once a week and check the oil, cooling water, and brake fluid.

2. Warm up the car first.

EFI trucks hardly need to be hot. Here the hot car refers to the start of the lubrication system. After stopping for more than 3 hours and the engine is on fire, the idle speed is more than 10 seconds, and the tachometer drops to about 1000 before starting again. In the severe cold weather in the north, the idle hot car time should be appropriately extended.

Tires vibrate while the car is moving: the tire pressure may be insufficient, or the front wheel is worn on one side, and the left and right sides cannot be balanced. So it will cause the tires to shake.

Possible causes.

1. Direction machine problem:

1) Excessive wear of the ball joint of the tie rod of the steering machine: because it is active, it will wear out after a long time, and there will be subtlety when steering after the problem occurs.

The angle is not accurate, so there will be tire shake and blurred steering at high speeds;

2)) Wear of the fixed rubber bushing of the steering machine: This problem is relatively rare, and it is also easy to overhaul, and it only needs to be seen with the naked eye, but.

If there is wear and tear, the steering wheel will tremble while driving.

2. There is a problem with the tire:

1) Rim deformation Generally, the rim will be deformed due to a violent impact by external force, and it is for some cars with low tire size.

More prone to problems and the need to replace the hub;

2) Tire imbalance Some car owners do not carry out tire dynamic balancing after disassembling and assembling tires, which will cause the high-speed steering wheel to tremble, and generally go to the tire store.

Tire dynamic balancing can solve the problem;

3) Tire deformation Carefully stroke the four tire tread parts of the car with your hands, if you find that the tire tread is jagged, or some.

There is a rather abrupt "bulge" in the tire, that is, the tire is deformed. Sometimes the tires are punctured by nails, which can also cause abnormal noises and heel chatter.

How do I shake it? Is it jitter at high speed or at low speed?

It may be caused by the unbalanced deformation of the transmission shaft, which generally occurs in the fact that there are more cars that have collided on the ground.

Summary. If the speed is relatively slow, it will shake, then mainly check whether the tire is deformed, whether the wheel hub is deformed, and whether the tire pressure is too high; If it starts to shake after reaching a certain speed, it is generally caused by the good dynamic balance of the tire, and you can do the dynamic balancing of the tire.

Hello, I am helping you sort out the answer to the question, please wait a while The tires shake during the driving of the car, then the first thing to see is how fast the speed is, if the speed is relatively slow, it will also shake, then the main check whether the tires are deformed, whether the wheel hub is deformed, and whether the tire pressure is too high; If it starts to shake after reaching a certain speed, it is generally caused by the good dynamic balance of the tire, and you can do the dynamic balancing of the tire.

<> "Tires are often used under complex and harsh conditions, and they bear various deformations, loads, forces, and high and low temperatures when driving, so they must have high bearing performance, traction performance, and cushioning performance. So what causes a vehicle tire shake?

It may be that there is a problem with the tire, such as abnormal tire pressure, the tire pressure is too high or too low, and the tire will shake when driving.

It may be that the wear and tear of the tires is inconsistent, resulting in a large amplitude of body shake when the vehicle is driving, and the owner needs to check the wear and tear of the vehicle.

It may be that the bearing of the tire is faulty, and the owner needs to check the bearing in time, it may be that the bearing lacks lubrication, or the bearing is damaged.

It may be that the shock absorption system of the tire is malfunctioning, causing the tire to shake when driving.

The reasons for the shaking of automobile tires are: 1. Excessive wear of the ball head of the tie rod of the steering machine; 2. The fixed rubber bushing of the steering machine is worn; 3. Deformation of rims or tires; 4. The screws of the transmission shaft are loose or missing; 5. The installation angle of the flange fork and telescopic fork is wrong; 6. The waist beam bearing and shock-absorbing rubber ring of the section drive shaft are damaged. The precautions for the use of tires are:

1. The car should not start too violently, and should start smoothly at low speed; 2. When the vehicle goes down the long slope, the speed should be appropriately controlled according to the slope size, length and road conditions; 3. When driving on a good road surface, you should keep moving in a straight line, and you should not swing left and right and turn sharply.