What is the cause of the car idling and stopping shaking

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.

The oil supply of each cylinder is uneven (the new pump is unqualified).

Uneven pressure in each cylinder (e.g. valve leakage, cylinder leakage).

The governor parts are loose.

The idle speed is too low. Valve clearance is inconsistent, some large and some small.

Lack of cylinders. A cylinder is cut off from oil (or power).

Faulty nozzles (poor atomization, or uneven pressure, no oil injection at high pressures).

The plunger of the fuel injection pump is worn, and some cylinders have a large oil supply, and some cylinders have a small oil supply.

There is a blockage in the oil circuit.

The low-pressure oil supply pump (oil transfer pump) is aging. ......

What is the reason for the intermittent shaking of the car at idle The engine is very good, but the oil circuit is expensive and needs to be cleaned regularly, and the oil tank of the gas station needs to be cleaned once every 2 months, not to mention that the fuel tank of the family car is not sealed. Add a division-have-general fuel additive in the fuel tank to complete the cleaning.

What is the cause of the intermittent shaking of the car at idle I know how to use it, I don't know how to wash it, all kinds of peculiar smells come out, inflammation is coming, I have to take anti-inflammatory drugs, fortunately it is not serious enough to require surgery, otherwise it is inevitable to disembowel and break the belly. Take advantage of the young resistance and strong resistance, add a general fuel additive to the fuel tank for regular maintenance. In a good body, if you don't maintain it, you will soon not be able to do it.

What is the reason for the intermittent shaking of the car idle Ethanol tired fuel will deteriorate in 9 days, long-term ethanol fuel should still be cleaned under the oil circuit, long-term unclean, the fuel tank moisture is not good, the smell is great. Always the smell is large, it will burn badly for a long time, idle shaking will occur, and if it is serious, it will burn the engine oil to accelerate the aging of accessories. There is also the fact that gas stations are required to clean oil storage tanks, and it is not suitable for private cars to clean the oil circuits.

In the way of gas stations, regular addition to the fuel tank can solve the problem of dirty ethanol fuel moisture in the oil circuit. If it burns well, the smell naturally does not exist, and the new car has no odor, team. So it's not normal.

It needs to be cleaned.

The reasons for the shaking of the body when parking and idling are as follows: 1. The throttle is too dirty: the engine is in the idle state after the car is started, and the air at this time needs to continuously pass through the throttle to the cylinder and gasoline combustion.

If the throttle valve is too dirty, it will reduce the air intake in the intake pipe, and this air intake will not reach the normal air-fuel ratio, which will cause the engine to shake. 2. Excessive internal carbon deposition of the engine: too long the service life of the engine will cause excessive internal carbon deposition and cause engine shaking.

The internal working environment of the engine is very harsh when it is running. Due to the accumulation of many years, the engine intake gas gate has been surrounded by carbon deposits for a long time. After a long time, the valve will not be tightly closed, and in severe cases, the engine will shake.

In this case, the intake manifold needs to be removed to clean the carbon deposits on the outside of the valve.

There are several reasons why the hair chain is judging:

1. The engine has serious carbon deposits, and the most common car with serious shake is that the fuel injector throttle valve is too dirty or too much carbon;

2. Ignition system problems, check the working conditions of spark plugs, high-voltage wires and ignition coils;

3. The oil pressure is unstable, if the first pressure of the pump is abnormal or the error and poor work of the inlet pressure sensor will cause the body to shake;

4. Aging of engine parts; The excessive carbon deposits in the emissions of the bright motor absorb the carbon in the gasoline of the cold-start injector, which leads to a dilute cold-start mixture and difficulty starting.

Severe idle vibration is generally caused by engine cylinder failure, aging or loose foot rubber, carbon deposits, fuel system failure, etc.

1.Serious engine carbon deposits: Cars always have the problem of carbon deposits, including cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, intake carbon deposits, etc.

When the engine has too much carbon deposit, it will affect the ignition energy, air intake efficiency and air-fuel ratio of the car, resulting in the unstable power output of the car, and the phenomenon of idle speed and acceleration jitter appears.

2.Unstable oil pressure: If you have cleaned the engine carbon deposits, cleaned the throttle, replaced the oil gasket and spark plug, etc.

And when idling, you still find that the body shakes, it is recommended that you go to the 4S shop to check whether the oil 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, it will cause the body to shake.

3.Engine cylinder shortage: Engine cylinder deficiency mainly refers to the engine one or more cylinders are not working properly, which is generally manifested as:

The exhaust fumes coming out of the car are obviously intermittent, and the exhaust pipe shakes violently, and the engine shake can be clearly felt, sometimes accompanied by abnormal noises. This is mostly related to ignition coil failure.

4.Aging of engine parts: Shake in the car is also associated with the aging of the engine feet (also known as claw pads).

The engine foot is actually the shock absorber system of the engine. The engine feet are responsible for absorbing slight vibrations when the engine is running. If there is a problem with the hand-wide engine base, these vibrations can be transmitted to the steering wheel and cab, causing vibrations at idle.

Solution; 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.

The causes of vehicle idle shake are as follows:

1. The engine has serious carbon deposits, and the most common reason for car shaking is that the throttle is too dirty or the fuel injector is too much carbon. Solution: Clean the oil circuit and check whether the idle motor has carbon deposits and should be cleaned;

2. Ignition system problems, check the working conditions of spark plugs, high-voltage wires and ignition coils, poor ignition system work, and poor spark plug flashing conditions will also lead to this kind of fault phenomenon. Solution: Check whether the spark plug has too much carbon deposit, replace the spark plug;

3. The oil pressure is unstable, if the engine carbon deposit has been cleaned, the throttle has been washed, the oil pad and spark plug have been replaced, etc., and the body is still found to shake 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 abnormal or the intake pressure sensor value is wrong and the work is poor, the body will shake. Solution: Check the oil pressure and replace the parts if necessary;

4. The aging of engine parts and the shaking of the car are also related to the aging of the engine foot (also known as the claw pad). 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. Solution;

Replacement parts.

Nowadays, many families have bought a car, for a car owner, it is necessary to understand the knowledge of the relevant aspects of the car, so as not to bring more trouble, so what causes the vehicle idle shake?

1. Mechanical structure failure, if the piston ring is not elastic or damaged, it will cause the vehicle to shake during idling.

2. The electronic control system is abnormal, when the internal circuit of the electronic control system is damaged, or the contact is poor, so it causes the vehicle to shake during idling.

3. The oil pressure of the fuel system is unstable, and when the oil pump of the vehicle cannot give the vehicle enough oil. This will cause the engine injection to atomize abnormally, or the fuel injector will not open properly, and eventually cause the vehicle to idle and shake.

4. The ignition system is abnormal, if the ignition system is in an abnormal working state, such as spark plug and high-voltage wire failure, it will cause the vehicle to idle and shake.

5. Engine carbon deposition, when the internal carbon deposition of the engine is in serious condition, it will not only cause the vehicle to start difficult, but also cause idle shaking.

The main reasons why the idle car will shake the ignition finger are: 1. The oil pressure is unstable. If the oil pump supply pressure is not normal, or if the intake pressure sensor is wrong and not working properly, it will cause the wagon body to shake.

Solution: Check the oil pressure and replace the parts if necessary; 2. The engine has serious carbon deposits.

When there is too much carbon deposition inside the orange eliminator, the gasoline emitted by the cold start injector will be absorbed by the carbon deposition, resulting in the cold start mixture being too thin and making it difficult to start. Causes the car to shake. Solution;

Clean the oil circuit and check whether the idle motor has carbon deposits and should be cleaned. 3. Ignition system problems. Poor ignition system and poor spark plug flashing can also cause the car to shake.

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

The main reason for unstable idling speed and vehicle shake;

1. The most common cause of vehicle shaking is that the throttle is too dirty or the fuel injector has too much carbon.

2. When the carbon deposition inside the engine is too much, the gasoline sprayed by the cold start fuel injector head will be absorbed by a large amount of carbon deposition, 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 started, 3. After the car, the gasoline adsorbed on the carbon deposition will be sucked into the cylinder by the vacuum suction of the engine for combustion, and the mixture becomes thicker, and the combustible pure bench 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.

Severe idle vibration is generally caused by engine cylinder failure, aging or loosening of foot rubber, carbon deposits, fuel system failure, etc.

Solution; The best way is to clean the oil circuit, clean it regularly, and use PNF fuel additives to solve the above problems caused by carbon deposits. The fuel quality is not very good or the initial fuel of the new car 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, and the carbon deposition exceeds the standard, which is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits.

The reasons for vehicle idle shake are as follows: 1. The aging of the foot glue can not buffer the engine shake well Solution to the solution: replace the foot rubber with a new one; 2. Excessive carbon deposition on the throttle valve leads to unstable idle speed due to poor engine air intakeSolution:

cleaning the throttle; 3. The spark plug has serious carbon deposits, which causes the engine ignition system to fail, and the lack of cylinder will also aggravate the engine shakingSolution: replace the spark plug with a new one; 4. The injector is blocked, the engine fuel system fails, and the mixed gas in the combustion chamber is too concentrated or too dilute, and the deflagration or incomplete combustion occursSolution: Check the oil pressure injector.