What is the reason for the shaky shaking of the old Poussin when he drove to about 95 yards?

According to the situation you described, it is possible that the wheel dynamic imbalance is serious, and it is recommended to go to the repair shop to dynamically balance the wheel.

Fortunately, this advice is to check the balance of the tires. If the tire balance is fine, it is recommended to check the gearbox nearby, I hope the above can help you, hope, thank you.

It is estimated that the tires need to do four-wheel alignment and dynamic balancing.

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The steering wheel shakes when the car is idling, which is very common, and some car owners can feel a strong steering wheel shake when driving the car at high speeds, when the speed reaches 80-100km h or more. In this case, most of the problems occur in the tires of the car, because the uneven distribution of the mass of the whole part of the tire will cause the wheels to rotate at high speed, and there will be a dynamic imbalance state, which will cause the steering wheel of the car to shake seriously while driving. In this case, it is necessary to align and dynamically balance the tires of the car, and in serious cases, the tires must be replaced.

In addition to the tires of the car, there may also be shock absorber failure, frame deformation, excessive meshing clearance of the main and driven gears of the final reducer, etc. If the steering wheel shakes when braking while driving, then it is very likely that the brake force is too strong and too frequent, which may cause the brake disc and brake pads to overheat and deform when cold, causing the steering wheel to shake.

Generally, the symptoms can be solved after replacing the brake discs and brake pads. If the speed of the vehicle is not fast, but the steering wheel shakes, it is possible that the steering belt of the mechanical steering system will slip when the belt is too loose, which will also cause the steering wheel to shake, and there will be shaking and abnormal noise when the steering transmission system is loose and the gap is too large, but this situation is rare.

First of all, consider the front wheel suspension system of the car, the steering machine, the degree of tire wear, and whether the tire pressure is the same, all of which may cause violent shaking when the car reaches a certain speed.

Poussin, speed on 100Why the engine and steering wheel shake violently.

There are generally several situations in engine fault diagnosis, the most common reason for serious engine carbon deposition causes car shaking, the engine has a general cleaning agent, which can remove carbon deposition and dismantle the engine oil to clean carbon sludge, which is very convenient to use, suspension decomposition does not block, and at the same time it is miscible with oil and will not lead to delamination, better and safer cleaning of your engine.

Every car has a resonant frequency... Depending on the chassis and the body's weight engine matching, this resonance point will be reached in a specific speed range. For example, if your car is at 100, it may reach resonance, causing violent shaking.

This is not the case when it is over 100 or below 100... So, everything is normal!

Is it shaking over 100, or is it shaking at a certain speed?? The former is resonance, which is not easy to solve, and the latter needs to do four-wheel status and dynamic balance.

The serious cause of the old Poussin idle shake is the serious carbon deposition of the engine or the aging of engine components.

Heavy carbon build-up in the engine: The most common cause of car shake is a dirty throttle or excessive carbon build-up in the injectors. When there is too much carbon deposition inside the engine, the gasoline emitted by the cold start injector will be absorbed by a large amount of carbon deposit, resulting in too thin cold start mixture and difficult starting.

In this case, it is easy to start the car only when the gasoline adsorbed with carbon deposits is saturated, and the gasoline adsorbed on the carbon deposits after starting the car will be sucked into the cylinder by the vacuum suction of the engine for combustion, so that the mixture becomes thicker, and the combustible mixture of the engine becomes thinner and thicker, resulting in a cold start. The lower the temperature, the greater the amount of oil required for the cold start, and the more carbon will be deposited, which will affect the success of the cold start. Workaround:

Clean the oil circuit and check whether there is carbon deposit in the idle motor, which should be cleaned.

Aging of engine components: Car shake is also associated with the aging of 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 engine base, these vibrations can be transmitted to the steering wheel and cab, causing vibrations at idle. Solution:

Replacement parts. Unstable oil pressure: If you have cleaned the engine carbon deposits, cleaned the throttle, replaced the oil chain pads and spark plugs, etc. If the oil pump supply pressure is abnormal, or the intake pressure sensor is wrong, and the work is not good, it will cause the body to shake.

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

Ignition System Issues: Check the operation of the spark plugs, high-voltage wires, and ignition coils. Poor ignition systems and poor ignition of spark plugs can also cause such failures. Solution: Check the spark plug for excessive carbon deposition and replace the spark plug.

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Causes of unstable car idling;

Throttle oil and throttle carbon deposits, dirty intakes, blocked intakes can cause idle pulling, throttle carbon deposits or oil are the most common causes of unstable idling.

Spark Plug Failure: Weak sparks caused by individual spark plug failures can also cause carbon deposits, which can be cleaned to restore spark plug activity, but some spark plugs have a fast lifespan and can reduce performance.

Blocked oil circuits: There are also oil circuit blockages and intake pipe failures represented by fuel injectors. When the oil circuit represented by the injector is blocked, the fuel supply pressure is insufficient, the fuel atomization is poor, the mixing ratio is unbalanced, and the combustion is incomplete, which leads to related failures.

Specific solutions to idle jitter:

1. The engine has serious carbon deposits. The most common cause of idle judder is excessive carbon build-up on the throttle or injector. When there is too much carbon deposit inside the engine, the gasoline sprayed by the fuel injector during cold start will be absorbed by the carbon deposit, resulting in a mixture that is too thin and 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 will also cause the problem of body shaking when idling.

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 the situation that the carbon return of Jichang Sakura exceeds the standard, which is especially common for China VI cars. 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 reasons for Poussin's idle shake are as follows: 1. Serious carbon deposition in the engine: The most common cause of car shake is that the throttle valve is too dirty or the fuel injector is too much carbon.

When there is too much carbon deposition inside the engine, the gasoline ejected from the cold start injector will be absorbed by the carbon deposit, resulting in the cold start mixture being too thin and making it difficult to start. 2. Aging of engine parts: Automobile shaking is also related to the aging of engine feet (also known as claw pads).

The engine foot is actually the shock absorption system of the engine, and the engine foot is responsible for absorbing the subtle shaking 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. 3. Unstable oil pressure: If the oil supply pressure of the oil pump is abnormal or the value of the intake pressure sensor is wrong and the work is poor, it will cause the body to shake.

Main causes of idle jitter:

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 gas flowing out of the car is obviously intermittent, and the exhaust pipe shakes violently, and the engine shakes clearly, 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 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, 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.