“When it comes to car driving jitter, basically many car owners have encountered it. This has a great impact on the driving experience, and sometimes car owners will find that they have changed a lot of air filters and fuel additives to deal with the vibration of the car, but they have no effect.

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When it comes to car driving jitter, basically many car owners have encountered it. This has a great impact on the driving experience, and sometimes car owners will find that they have changed a lot of air filters and fuel additives to deal with the vibration of the car, but they have no effect.

In fact, to solve the problem of car jitter, you must first find the real cause of jitter. In this regard, PetroChina has popularized some common causes of abnormal car vibrations on its official Weibo account.

1. Excessive carbon deposits in the engine and oil circuit

Excessive carbon deposits on the throttle valve, spark plug or the top of the piston are the most common causes of abnormal jitter in the car. However, carbon deposition is a normal and unavoidable phenomenon, and we need to clean it up regularly.

In addition to abnormal jitter, carbon deposits can also lead to poor acceleration of the car. If your car has the above two situations, it is very likely that there is too much carbon deposition and it has not been cleaned for too long.

2. Transmission problem

Gearbox failure can also cause the car to vibrate abnormally, the most obvious manifestation being that the gear shift is not smooth, stutters, and even makes abnormal noises. Transmission problems can get worse over time, and repair costs can skyrocket.

For friends who drive manual transmissions, the most common situation is that the clutch wears too much and fails. For friends who drive automatic transmissions, the most common problem is that the transmission does not work smoothly due to the deterioration of the transmission oil.

In addition, if the gears in the gearbox are worn, it will also cause power loss and abnormal noise.

3. Tire wear and hub deformation

If the wheel is not round, it will not only bump up and down when running, but also pose a great safety hazard. The shaking caused by the wheels must be more obvious the faster the speed, but there is no feeling when the car is stopped. When checking the condition of your tires, if there is serious wear from the outside, then there is a good chance that the root of the problem is the tires.

Generally speaking, the probability of deformation of the wheel hub of qualified quality is relatively low in the absence of strong collision. But if you often park on the curb, walk on uneven roads or load heavy cargo, you need to focus on checking whether the wheel hub is deformed.

4. Brake problem

The composition of the braking system is relatively complex, and any problem with any part may cause abnormal vibration during braking.

Among them, the most common problem is the wear of the brake disc, which will cause uneven force when braking. Generally speaking, this situation may be caused by the fact that the brake pads are too hard, the quality is not up to standard, or the brake oil pump is not properly returned. Therefore, if this situation occurs, it is also necessary to check whether the brake oil pump is faulty.

5. Steering wheel shaking

After confirming that the wheels and brakes are in normal state, if the steering wheel is unstable when steering or driving at high speed, it may be a problem with the suspension system or the steering system.

Each wheel and tire will have a certain tolerance when it is produced. Not all wheels are perpendicular to the ground at 90 degrees. Different models of cars have different design inclinations, which all require the suspension system to adapt. This is the four-wheel alignment and dynamic balance that many car owners have heard of.

If the car vibrates or deviates after changing the tires, you need to check the suspension system.

The steering wheel is directly connected to the steering system, so steering wheel shake may also be a problem with the steering system. Modern cars are equipped with power steering systems, both hydraulic and Electronic. The reason for the jitter may be the problem of the power booster, or there may be gaps in the putter, ball head and other places. Professional maintenance point for inspection.