Why does the car shake? Do you know what to do when the car shakes badly?

Car jitter seems to be a very common thing, but the causes of jitter vary. So what are the causes of car shaking? Here are some of the reasons why the car is shaking.

The first case is idle jitter. Idle jitter can be divided into four causes: carbon deposits.

Overload, ignition system, oil supply system, resonance problems. Most of the carbon deposits are caused by carbon deposits on the engine and valves, which adsorb gasoline, resulting in a cold start when the concentration of the mixture in the cylinder rises and falls.

jitter is noticeable. In the ignition system, the spark plug.

The gap between them may become larger, or the ignition coil.

It can be damaged, which can cause the car to shake. Sometimes, don't overcomplicate things. Maybe a different spark plug will solve the problem, and the oil supply system may be due to unstable oil pressure.

Consider changing your gas filter and check it frequently to get your gas filter checked. Shaking of the car is likely to damage the engine base. Check your feet.

In the second case, you will shake when driving. Driving jitter is divided into wheel hub problems and dynamic balance.

problems, steering gear problems, propeller shafts.

Issue. The problem is that the wheels may not be round due to the impact of the tires, which can also cause the car to wobble. In terms of dynamic balancing, if the new tires are not dynamically balanced in time, the steering wheel.

It will shake at high speed. The steering gear problem is that if the steering rod ball joint is worn excessively, the steering becomes inaccurate and the tires shake. After the propeller shaft is loosened due to the impact of the car, there will be obvious shaking at high speeds.

Do you know what to do if your car shakes badly? Let's take a look.

How it works: 1. When the car has abnormal vibration, the first thing we need to check is whether the tires are abnormal. If it is caused by tire pressure, we need to replace the car tires as soon as possible.

2 Some cars may be more prone to shaking than others, so you can also check if there is any problem with the engine compartment when the car is shaking.

3. We also need to observe the handbrake when the car is shaking.

Sometimes, it can be caused by forgetting to release the brakes.

4. When the car is shaking, it is also necessary to observe the oil condition of the car. Sometimes, the shaking of the car can be caused by a lack of oil in the car or an engine that is not functioning properly. Performance can deteriorate, which increases the resistance of the engine and makes it difficult for the car to start cold.

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.

It may be that its engine is aging, it may be that it is not cleaned properly, or it may be that we are driving improperly; We can go to the place where the car is sold to repair it, or we can check the fault ourselves and learn to repair it online.

It may be because of the aging of the engine parts, or it may be because the carbon deposition of the engine is relatively serious; In this case, you can clean up the carbon deposits in the engine.

Engine parts are aging, the engine carbon deposition is serious, the oil pressure is unstable, and the ignition system is a problem, so it is necessary to check which part is shaking badly, and then prescribe the right medicine.

The seven causes and solutions of car shaking are as follows:

1. Ignition system failure: It is usually the jitter caused by the aging of the ignition coil and spark plug, which can be replaced.

2. Blockage of oil pipe and fuel injector: If the pressure of the fuel pipe is too low, the fuel pipe is blocked, and the fuel injector is blocked, the solution is to clean the oil circuit.

3. High-voltage line failure: Usually the fault is caused by short circuit and open circuit of the high-voltage line, which will affect the ignition performance of the engine, make the engine shake, and overhaul the high-voltage line.

4. Oil pump failure: The oil pump failure leads to insufficient oil supply, so that the fuel delivered to the engine is too small, and the combustible mixture is too thin and the combustion is not sufficient, resulting in shaking, and the solution is to overhaul the oil pump.

5. Dirty air filter: Dirty air filter will cause too little fresh air to be inhaled into the engine, resulting in insufficient combustion of the combustible mixture, resulting in shaking, which can be solved by replacing the air filter.

6. Excessive carbon deposition in the engine: too much carbon deposition will lead to poor atomization effect of gasoline, which will increase fuel consumption and shake the engine, and it is enough to clean the carbon deposition. 7. Aging of the tripod:

The tripod is equivalent to the shock absorption of the engine and plays a role in supporting the engine, and it will fail after aging, resulting in shaking, and the tripod can be replaced.

Vehicle shake can be divided into starting, idling, and high-speed driving. The jitter at start is mainly due to insufficient fuel burning, resulting in insufficient power in the vehicle. Low ignition energy.

When start-up, especially when fuel and lubricant temperatures are low, more oil is required to meet power requirements. For a long time, the pole gap of the spark plug gradually increased, resulting in a decrease in ignition energy and poor fuel atomization, which led to the body shaking. In addition, aging of the ignition coil, aging or leakage of the spark plug high-voltage wire can also reduce the ignition energy.

There are many reasons why cold and hot start vehicles can shake. In addition to the above-mentioned insufficient fuel combustion, it may also be due to abnormal engine water temperature, low cylinder pressure, blocked fuel injector, etc., if the vehicle is shaking, it is recommended that the owner go to the 4S shop for maintenance in time. Vehicle idle jitter should not be ignored.

The causes of idle jitter include severe engine carbon deposits, ignition system failure, unstable oil pressure, aging engine components, etc. If the idle speed shakes, the owner is advised to clean the engine, replace the spark plugs, check the oil supply pressure, etc.

The most common causes of high-speed shake are tires, such as excessive or low tire pressure, abnormal tire wear, rim deformation, shock absorber failure, tire dynamic balance, excessive deviation of wheel alignment data, etc. Of course, in addition to the most common tire problems, engine power can also cause the car to shake at high speeds.

Starting from a cold start, the main cause of cold start body shaking is insufficient fuel burn, resulting in insufficient vehicle power. Low ignition energy. When start-up, especially when fuel and lubricant temperatures are low, more oil is required to meet power requirements.

For a long time, the pole gap of the spark plug gradually increased, resulting in a decrease in ignition energy and poor fuel atomization, which led to the body shaking. In addition, aging of the ignition coil, aging or leakage of the spark plug high-voltage wire can also reduce the ignition energy. Body jitter is also related to the aging of the shock absorber system.

It is mainly responsible for filtering vibrations during engine operation. If there is a problem with the shock absorber, these vibrations will be transmitted directly to the steering wheel and cab, affecting the driving.

Because the car is too fast in the process of driving, it may also be because of a problem with the car's engine, or there may be a problem with the suspension of the car, all of which will cause the car to shake.

It is likely that the speed and gear of the car do not match, or because the car revs too high, or because the engine is abnormal.

It is likely that there is a carbon deposit in the air intake system, it may also be because the throttle is dirty, it may be because the speed is relatively fast when driving, or it may be because the spark plug is not replaced in time.

It should be carbon deposits, it may be that the valve is too dirty, and it may be that the engine is faulty, try to overhaul it

Top 7 Causes of Car Shake::Missing engine cylinders, aging or loose foot glue, ignition system problems, unstable oil pressure, dirty air filters, broken high-voltage lines, and clogged fuel injectors. Workaround:

Replace the ignition coil, replace the foot glue, replace the spark plug, replace the intake pressure sensor, replace the air filter and clean or replace the fuel injector.

The reason for the frustration when the car is refueled is that the car has too much carbon deposition in the throttle device.

The solution is: if the throttle device of the car has too much carbon deposit, you need to go to the 4S shop or maintenance shop of the car to clean the throttle valve of the car in time, which can solve the situation of the car oil harvesting.

Carbon deposits are cleaned once every 2 to 40,000 kilometers, and excessive carbon deposits will reduce the life of the engine.

Carbon deposits are treated by:

1. Clean the throttle, remove the engine trim cover, remove the throttle, clean it with carburetor cleaner, dry it with a cotton cloth and install it.

2. Clean the carbon deposits inside the engine, add the engine cleaning agent to the oil port, and replace the oil filter after idling for 10 minutes.

There are several reasons for engine shake:

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; Excessive carbon deposits in engine emissions absorb carbon from 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 the slight vibrations of the engine when it 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 regularly, from the new car to clean the engine R & D parameters have no specific experience, 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 resulting in no good fuel can participate in the combustion in the later stage, and the carbon deposition exceeds the standard, which is especially common for the National VI car。 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.