Is car jitter common? What are the causes of car shaking?

One: the body shakes when idling.

If the car shakes when idling, there may be a problem in the following areas.

The engine has a lot of carbon deposits, the throttle is too dirty, or the fuel injector has too much carbon deposit, which is the most likely cause of car shaking.

When starting the car, the fuel on the carbon deposits will be sucked into the cylinder by the engine for combustion, and the amount of flammable gas mixture in the engine will be high and low, so the body will shake during cold start.

As a rule, if you clean the throttle and other oil circuits on time, this problem will not occur.

Ignition system failure: This is also a significant cause of body shake at idle.

If there is a problem with the spark plug, high-voltage wire, or ignition coil, the body of the car will shake when it is started. At this time, you can check whether the carbon deposit in the spark plug is too much, and you can also replace it with a new spark plug if necessary.

Ignition system failure: This is also a significant cause of body shake at idle.

If there is a problem with the spark plug, high-voltage wire, or ignition coil, the body of the car will shake when it is started. At this time, you can check whether the carbon deposit in the spark plug is too much, and you can also replace it with a new spark plug if necessary.

2: Shaking during driving.

The rim is out of round. Usually if the tire is hit with a strong impact, it will cause the rim to lose its roundness. In particular, some flatter tires are more susceptible to this problem.

If the rim is out of circle, it is basically impossible to return to its original shape, and it is better to replace the wheel hub for your own safety.

2.Tire imbalance. Some car owners do not have the habit of tyre dynamic balancing when replacing new tires, so when the car is running at high speed, the steering wheel will tremble. Usually, you just need to do a tire dynamic balancing.

3.Tire deformation. If you touch the tread of a tire with your hand, if you feel that the tread is jagged, or if a tire has a prominent bulge, then the tire is deformed.

Generally, tires are punctured by sharp objects, and abnormal noises and shaking will also occur. Now it's time to change the tires!

4.The ball joint of the tie rod of the steering machine is worn excessively. The ball head of the tie rod of the steering machine is movable, so it is inevitable that there will be wear; However, if it is worn too much, the steering will be inaccurate at high speeds, and the tires will shake.

In this case, you have to go to a repair shop to fix it.

5.The fixed rubber bushing of the steering machine is worn. Usually this kind of problem doesn't happen, but it's better to check it out just in case.

This kind of problem is easy to spot, as long as you look at it a little. If the rubber bushing of the steering machine is worn, the steering wheel will shake when the steering wheel is turned.

Three: the transmission shaft deformation and jitter.

If the vehicle collides, or scratches against a hard material, such as a road tooth, stones, etc., the propeller shaft screws may loosen or even fall off. If there is a problem with the propeller shaft, the feeling of shaking of the car will be more pronounced when accelerating. Hope.

There are several reasons for car shaking:

If there is a slight shaking or deviation of the body during driving, it is generally caused by the fault. First of all, it may be that the tire balance is not good, you should do a four-wheel alignment and dynamic balance as soon as possible, if the vehicle does not deviate, you can do the tire dynamic balancing.

The other condition is more serious, which may be caused by the deformation of the steel ring, which requires you to go to a professional repair shop for inspection. This condition usually occurs in vehicles that are more than a year old. 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.

The third situation is caused by the unbalanced deformation of the transmission shaft, which generally occurs in the chassis collision of more cars.

Shake of the body at idle.

Idling body shake is a common situation encountered by many car owners. If you start or stop the vehicle without turning off the engine, if you notice that the body shakes significantly, it may mean that the vehicle has one of the following three conditions:

1.The engine has a lot of carbon deposits.

The most common cause of car shake is a dirty throttle or excessive carbon build-up in the fuel injector. When the carbon deposition inside the engine is excessive, the gasoline sprayed by the cold start fuel injector will be absorbed by the carbon deposition in large quantities, resulting in the mixture of cold start being too thin, making it difficult to start, in this case, only when the gasoline absorbed by carbon deposition is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposition after the car will be sucked into the cylinder by the vacuum suction of the engine for combustion, and the mixture becomes thick, and the combustible mixture of the engine is dilute and thick, causing idle shaking after cold start. The lower the temperature, the greater the amount of oil required for the cold start, and the more carbon deposits will affect the smooth cold start.

Solution: clean the oil circuit, check whether the idle motor has carbon deposits should be cleaned, it is recommended to use BOD's "oil circuit wizard", as long as you add it to the fuel tank when refueling, you can clean the oil circuit.

2.Problems with the ignition system.

Check the working condition of the spark plug, high-voltage wire and ignition coil, the ignition system is not working well, and the spark plug tripping condition is not good, which will also lead to this kind of failure.

Solution: Check whether the spark plug has too much carbon deposit, and replace the spark plug.

3.The oil pressure is unstable.

If you have cleaned the engine carbon deposit, washed the throttle, changed the oil pad and spark plug, etc., and still found that the body shakes when idling, it is recommended that you go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is abnormal or the intake pressure sensor value is wrong and the work is not good, the body shake will be triggered.

Solution: Check the oil pressure and replace the parts if necessary.

4. Aging of engine parts.

Car jitter is also related to the aging of the engine feet (also known as claw pads). The engine foot is actually the suspension system of the engine, and the engine foot is responsible for absorbing the subtle shake of the engine when it is running, and if there is a problem with the engine foot, these vibrations will be transmitted to the steering wheel and cab, causing shaking when idling.

Normally there is a slight amount of jitter, which is normal. However, if there is a fire or there is a problem, the shaking will be violent.

The main reason for the shaking of the vehicle is that the fuel burns poorly and does not provide enough power to the vehicle. 1. Low ignition energy: If the temperature in the engine is low and the temperature of fuel and lubricating oil is low when the vehicle is cold starting, more fuel should be injected to meet the requirements of power.

After long-term use, the pole gap of the spark plug is easy to become larger, resulting in a decrease in ignition energy and poor fuel atomization, thus making the car.

It doesn't happen often, and if it happens often, it means that there is something wrong with the car.

Domestic fuel is a characteristic, and the technology of engine manufacturers is based on the appearance of mainstream fuel, and there is no research on ethanol fuel.

Many high-end luxury cars and new cars are facing shaking, high-end car compression ratio is large, high fuel requirements, in fact, it is not a problem with the engine, as long as you use detergent to clean it once, you don't need to worry about this situation, according to the size of the fuel tank, add 1 to 2 Si Youpu fuel additives, run one or two tanks of fuel, and the jitter before the D gear is good.

Idle shaking, the new car has been used for a period of time, and some owners will find that the body has some small shaking, but they don't know that there is a problem. "Body shake" is a sign that something is wrong with the car. Professionals tell us that body shaking may seem like a trivial matter.

As long as it is not a three-cylinder engine, if the jitter occurs frequently, you need to find the problem of the car.

Professionals tell us that body shake seems to be a trivial matter, but if you don't pay attention to detection, it will cause a big failure. So, what is the cause of body shake?How should ordinary car owners judge and solve?

The clutch is located in the flywheel housing between the engine and the gearbox, and the clutch assembly is fixed to the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the gearbox.

What is the problem of car jitter?

Hello According to your description, 80% of NVH problems in vehicles are caused by the powertrain, only the other 20% are irritability, road noise, etc. In general, vehicle jitter doesn't appear all the time Hope mine is helpful to you, hope, thank you!

Explain the solutions and answers to the car shaking ** broken.

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 in order to compensate for the jitter caused by the idle slippage, 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.

The reasons for the shaking of the car are: 1. The engine has serious carbon deposits, and the gasoline emitted by the cold start fuel injection head is absorbed by a large amount of carbon deposits, resulting in too thin gas mixture and making it difficult to start; 2. Ignition system problems, ignition system and spark plug work poorly; 3. The oil pressure is unstable, the oil supply pressure of the oil pump is abnormal or the value of the inlet pressure sensor is wrong and the work is poor; 4. The aging of engine parts and the aging of engine feet cannot absorb the subtle shaking of the engine during operation; 5. The tire pressure gap is large, and the force is uneven when driving. The solution to car jitter is:

1. Clean the oil circuit and check whether there is carbon deposit in the idle motor; 2. Check and replace the spark plug; 3. Check the oil pressure and replace the parts if necessary.

1. Low idle speed 2. Check whether the oil circuit is smooth and whether there is any blockage 3. The fuel tank of the EFI car will rarely burn out the oil pump. Check whether the oil pump is burned out: open the lid on the oil pump and knock on the oil pump cover 4. Check whether the high-voltage electricity is normal.

5. The engine is not working steadily, and you can check whether the ignition system such as spark plugs is normal. If it is normal, check whether the fuel injector and throttle valve are dirty and need to be cleaned.

If carbon deposits occur in the valves and intake tracts of the engine, the ECU will make an error in judgment because the carbon deposits can absorb the appropriate amount of fuel. If the computer actually controls the injection of hypothetical 100 parts of oil and gas, but only 90 parts actually enter the cylinder (10 parts are absorbed by carbon deposits), then even if the remaining 90 parts of mixed oil and gas are fully combusted, this cannot achieve the required power, and the phenomenon of jitter is inevitable.

Causes of idle jitter:

1. The engine carbon deposition is serious. The most common cause of idle judder is excessive carbon build-up on the throttle or injector. When there is too much carbon deposition inside the engine, the gasoline sprayed by the fuel injector during cold start will be absorbed by a large amount of carbon deposition, and the mixture is too thin due to forest rent, making it difficult to start.

After landing, the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the engine and burned, which will thicken the mixture. The mixture is sometimes dilute and sometimes thick, which will cause idle jitter after cold start. The lower the temperature, the greater the amount of oil required for cold starts, and the more the presence of carbon deposits affects cold starts.

The solution is to clean the carbon deposits at the throttle and injector.

2. Poor ignition system and poor ignition of spark plugs will also lead to engine idling and shaking. If there is a problem, check if the ignition system is faulty and if there is too much carbon deposited in the spark plug.

3. The oil pressure is unstable. If you have cleaned the engine carbon deposits, cleaned the throttle valve or replaced the spark plug, and there is still the problem of body shaking when idling, it is recommended to go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal. If the oil pump supply pressure is not normal or the intake pressure sensor is incorrect, it can also cause the body to shake when idling.

Solution: Ode to friends;

The best way is to clean the oil circuit, clean it regularly, there is no specific experience in the research and development parameters of the clean engine from the new car, coupled with the continuous improvement of emission standards, can not adapt to the change of fuel, all manufacturers of the engine are unable to solve this jitter problem in the short term, plus the fuel quality is not very good or the initial fuel of the new car factory is stored for too long, resulting in a rapid increase in the colloidal composition of the oil circuit, which will continue to pollute the fresh fuel and cause no good fuel to participate in combustion in the later stage. The occurrence of excessive carbon deposits is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits. The use of PNF dope fuel additives can solve the problems caused by carbon deposition.