What is the reason why the car stops and the body shakes

Analysis of the causes of car shake:

1. Cold start jitter.

First of all, starting from the cold start, the main reason for the cold start body shaking is that the fuel combustion is insufficient, resulting in insufficient power of the car. The ignition energy is low, and when starting, especially when the temperature of the fuel and lubricating oil is low, more oil is required to meet the power. Over time, the pole gap of the spark plug gradually increases, resulting in a decrease in ignition energy and poor fuel atomization, which leads to the shaking of the body.

In addition, the ignition energy can also be reduced due to the aging of the ignition coil, the aging of the high-voltage wire of the spark plug, or the leakage of electricity.

2. 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.

3. 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.

4. 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.

5. 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.

1. When the fuel system fails, such as poor fuel quality, abnormal fuel pump, etc., it is easy to cause insufficient fuel supply to the vehicle, or too much fuel supply, resulting in oil pressure can not be in the normal range, which can easily cause the vehicle to stop and shake.

2. The engine is abnormal, when the engine is abnormal, such as damage or aging of internal parts, it will cause the power of the engine to decrease, so it will cause parking shaking.

3. Carbon deposition in the engine, during the driving of the vehicle, the engine is in working condition, and it is easy to produce carbon deposition. However, if the amount of carbon deposit in the engine is too large, it will cause the engine to work abnormally and cannot obtain sufficient power, resulting in parking jitter.

4. If the ignition system is abnormal, such as a spark plug or ignition coil, etc., it will cause the vehicle to stop and shake.

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The most common cause of car shake is a dirty throttle valve or excessive carbon build-up on the fuel injector. When there is too much carbon inside the engine, the gasoline ejected from the cold-start injector will be absorbed by the carbon deposit, resulting in a cold-start mixture that is too thin and makes it difficult to start.

In this case, only when the gasoline absorbed by carbon deposits is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the vacuum suction of the engine after the car is burned, and the mixture becomes thicker, and the combustible mixture of the engine is dilute and thick, resulting in 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.

The main reason for the shaking of the body during driving is these points, learn to prevent damage to the body.

Summary. In the case of idling, the body shakes, this is mainly caused by the engine shake, this still needs to be specifically checked, check the engine foot pad, see if there is any looseness, if there is no problem, you need to check the spark plug, clean the throttle and fuel injector, if the spark plug burns badly, then you need to replace the spark plug, and there is a need. Check that there is a lot of carbon in the engine cylinder, and it also needs to be cleaned.

There is also a need to use a computer to check the air intake sensor of this engine, as well as the data flow of the oxygen sensor, to see if there is a problem, these are all things that need to be checked specifically.

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In the case of idling, this body shakes, this is mainly caused by engine shake, this still needs to be specifically checked, check the engine foot pad, see if there is any looseness, if there is no problem, you need to check the spark plug bridge, clean the throttle and fuel injector, if the spark plug burns badly, then Sunzhou needs to replace the spark plug, and there is a need. Check that there is a lot of carbon in the engine cylinder, and it also needs to be cleaned. There is also a need to use a computer to check the air intake sensor of this engine, as well as the data flow of the oxygen sensor, to see if there is any problem, these are all things that need to be checked by Min Kaisan.

<> "Some car owners will encounter parking shaking, so they are worried that it will have a great impact on the vehicle. So what's the deal with the shaking of the car body when parking?

Ignition system abnormality: Ignition coil damage, spark plug failure, etc., will cause the vehicle to shake in the parking state.

Engine abnormality: such as damage or aging of internal parts, which will cause the power of the engine to decrease, so it will cause parking shaking.

Start filial piety machine carbon deposit: If the car engine carbon deposit is serious, it will cause the car Qiaoqiao manuscript to shake in the parking state, it is recommended that the owner and friend clean up the engine carbon deposit, so that the car can regain enough power.

Fuel system failure: For example, the fuel quality is very poor, the fuel pump is abnormal, etc., it is easy to cause the vehicle to supply insufficient fuel, or too much fuel supply, resulting in the oil pressure can not be in the normal range, which can easily cause the vehicle to stop and shake.

Parking jitter can be caused by aging engine parts, and car shake is also related to the aging of engine legs. The engine foot is actually the shock absorber of the engine. Engine feet are responsible for absorbing minor vibrations during engine operation.

If there is a problem with the engine feet, these vibrations can be transmitted to the steering wheel and cab, causing jitter when parking. The failure of the oil supply system and the unstable oil pressure can easily lead to the instability of the mixture concentration, which not only causes shaking, but also leads to unstable idling. First, consider replacing your gas filter.

After long-term use, the filter may clog. Check the oil pressure that does not pass through the gasoline filter. If it's not normal, it could be a problem with the oil pump.