The car scrapes the chassis, and the car shakes when it ignites the next day?

Hello, do you have a guard plate installed under the chassis of your car? If a guard plate is installed, it may be that the guard plate is close to the engine.

Check again, does the chassis catch the stones?

Finally, check your lower limb arms, are there any loose ball joints?

Hopefully, it will help you. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, this is caused by resonance after the deformation of the chassis, it is recommended to go to the 4S shop to raise the post-treatment.

Hello, this is the chassis is deformed and needs to be specifically checked. I hope mine can help you and have a great day! [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

It is recommended that the repair shop check whether the chassis ball joint is caused by hanging deformation.

It is recommended to solve the car problem as soon as possible, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, this suggestion to 4S processing, may be chassis deformed.

It is recommended to check the hanging part on the top, it may be a psychological effect, you are looking at the car question, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The engine guard is attached to the engine and can be pinned with a crowbar.

I hope mine is helpful to you I wish you a happy car If you still have questions, please invite [car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

This can be used to clean the throttle.

Hello! If you scrape the chassis, you need to put the roof up to see if there is anything scratched, you may have scraped the oxygen sensor in this situation, it is best to go to the repair shop to check the chassis!

I hope mine can help you, I wish you a happy car! [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, go to overhaul, it may be that the oil circuit is deformed, if my answer is helpful to you, please set it to! Thank you!

There are so many possibilities that it's best to check it out.

Reasons for engine trembling after the trolley chassis is scraped:

If there is no problem with the engine, please check the engine mount, there may be hardening or cracking of the bracket rubber sleeve, check the fixing bolts, and the exhaust pipe should be installed on the chassis actively, if there is no active installation but hard connection may also cause engine vibration, if there is no problem, it may make the gearbox problem, not too powerful can ignore it, because this is the car ran 100,000 kilometers each part may be worn, the gap between the parts is large, especially the gearbox, not to the extent that it can not be used, But the total wear and tear is large, and can not be replaced with a new one, only so used, there is a way, that is, the fault of the car can not always find the fault in time, there is a process of development and expansion, this problem does not affect the use, that is, the heart is not at ease, you can pay close attention, and so on in the process of his re-development of the sound and phenomenon will develop, you can gradually judge it. It could also be oil pressure, dirty throttle, etc.

When there is jitter, I recommend that you clean the throttle injector, and it is best to go to the store to check it, it is not a big problem.

Hello, if the vehicle idles off after starting, this should check whether the carbon deposition on the lower throttle valve is too much!

In the morning, when the car starts, there are reasons for a slight shaking:

1) The jitter caused by equipment failure, such as ignition coil, water temperature sensor, spark plug does not work, lack of cylinder, etc., does not work properly, this jitter is more obvious, sometimes it is directly like the shaking of the car, such jitter should be detected in the maintenance station, but for the occasional occurrence, even the maintenance station may not be able to find out the reason.

2) The shaking that can be felt in the car during the cold start and gradually from the inside of the car.

The jitter of the cold start may be due to the bad gasoline resulting in gasoline gelatinization, resulting in obvious shaking fault phenomenon of the engine during cold start, and it is beneficial to clean the oil circuit or add gasoline cleaner for a long time. It is recommended to change the steam filter, and then add special gasoline additives, which can ensure that the failure phenomenon caused by gasoline problems can be reduced.

If it is not serious, it is a normal situation, and if it is particularly serious, go to the garage to check whether the valve door and the engine need to be cleaned.

1. The positioning angle of the front wheel is inaccurate, and the toe is too large;

2. The air pressure of the front forum is too low or the tire is unbalanced due to repair and other reasons;

3. The front spokes are deformed or the number of tire screws is different;

4. The installation of transmission system parts is loose;

5. The transmission shaft is bent, the dynamic is unbalanced, and the front shaft is deformed;

6. The shock absorber fails, the stiffness of the front leaf spring is inconsistent, and the frame is deformed.

When judging, the drive axle is erected first, the front wheel is plugged with safety plug blocks, the engine is started and the high-speed gear is gradually shifted, so that the drive wheel reaches the final test vibration speed. If both the body and steering wheel shake at this time, it is caused by vibrations caused by the drivetrain. Because the front axle is in a stationary state at this time, if the final test vibration speed is reached, the car does not shake, the cause of vibration is the fault of the front axle part of the car;

2. Check whether the positioning angle of the front wheel and the front wheel meet the requirements, and if it is inaccurate, it should be adjusted;

3. Set up the front axle to test the wheels, check the static balance of the wheels and whether the tires are too deformed. If necessary, a good wheel can be changed for comparative experiments.

The reasons for the shaking of the car after ignition are: 1. The foot glue is aging or loosening: the foot glue is the rubber block between the engine and the frame, which is used to reduce the vibration and buffer when the engine is doing work, and has the effect of fixing the engine; 2. The engine lacks cylinders

It mainly refers to the fact that the engine has one or more cylinders that are not working properly, which is usually manifested as a significant intermittent exhaust gas flow from the car, and the exhaust pipe shakes badly. If the shake of the car is obvious, as long as the fault light is not on, it can continue to drive, but it should drive at a lower speed and drive to the maintenance point as soon as possible to investigate the cause of the shake; If the car shakes very badly, the sound is not right and the fault light is on, you should stop immediately and call ** for rescue.

Today, I would like to explain to you about "Is it normal for the car to ignite and shake?" ". It is normal for the car to shake at the moment of ignition, and the vehicle starts cold, and sometimes there will be a slight shaking.

As long as the jitter is not very violent and does not last for a long time, it is normal. If it is persistent, it is abnormal.

The reasons for the ignition shaking of the car are as follows:

1. The engine burns gasoline insufficiently, the power provided is insufficient, the fuel injector is stuck or blocked, and many engine shakes are caused by the fuel injector is blocked or stuck due to insufficient fuel supply and power lossengine shake;

2. The spark plug is aging due to long-term use, and the pole gap is easy to become larger and wider, resulting in insufficient ignition energy, poor gasoline atomization effect, etc., and there are many cars that are three-cylinder and four-cylinder engines, and each cylinder has a spark plug, and these spark plugs will also have a larger gap, so that the power of each cylinder will be different, and the vehicle will also jitter;

3. The engine intake manifold and valve will produce more carbon deposits, which may be caused by excessive carbon deposits in the throttle valve and fuel injector and intake tract, and the carbon deposits will absorb a part of the rubber liquid oil in the case of cold driving, and if the fuel is not completely entered into the cylinder combustion, it will produce idle instability, so that there may be carbon deposits to adsorb part of the gasoline during the cold start of the engine, resulting in too low concentration of mixture in the engine cylinder body, which causes the engine to shake and start the symptoms of difficulty in starting.

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There are many reasons for car jitter, it can be too much carbon accumulation on the throttle, aging engine floor pads, or it can be a lack of cylinders in the engine. The lack of cylinder is caused by a faulty ignition system. The main components of the ignition system include the ignition coil and the spark plug.

Causes of 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 deposition inside the engine, the gasoline sprayed by the fuel injector during cold start will be absorbed by a large amount of carbon deposition, resulting in too thin mixture, making it difficult to start.

After the car is hit, the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the engine for combustion, which will make the mixture thicker. 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 to the problem is to clean the carbon deposits at the throttle and fuel 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 can also cause the body to shake 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 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.