What happens when a car shakes off and when it goes out?

There is always a shaking phenomenon when the car is turned off and stopped, mainly because of the engine, which is generally caused by the aging of engine parts!

1. The throttle valve is too dirty, and the fuel injector has too much carbon deposit; 2. Aging of engine floor pads; 3. Tire aging and deformation; 4. It may be caused by the aging of engine parts; 5. Oil supply system failure, unstable oil pressure, etc. It is recommended to go to the maintenance point for inspection and maintenance.

The reasons for the shaking of the car after the ignition is turned off are: 1. There is a problem with the throttle: such as the throttle is blocked, the throttle has carbon deposits, and the throttle opening is abnormal, so the throttle should be cleaned in time; 2. There are too many impurities in the inlet duct, which makes the driving computer unable to accurately control the idle air intake; 3. There is a problem with the spark plug:

For example, the life of the spark plug has reached the limit, the spark plug electrode is ablated or damaged, etc.

It may be that there is a problem on the car line, and the same electric BAI electrode string wire or DU is in poor contact. Stepping on the clutch, the car shook and stalled because the action touched the line.

The most common cause of car shaking is that the throttle door is too dirty or the fuel injector is too much carbon.

dao。1. The throttle valve will be closed loosely or the idle step motor will be stuck because it is too dirty, which can cause the engine to idle too high and the carbon deposit generated by the engine in the working process will also cause the vehicle to shake, especially when starting the vehicle, the engine will shake more than normal, and sometimes there will be a phenomenon that can not be started at one time.

Therefore, when the vehicle is shaken, the throttle and fuel injector should be checked first. If you find that the throttle valve is too dirty or the fuel injector has too much carbon deposit, it should be cleaned in time.

2. Car shake is sometimes related to the aging of the engine foot.

The engine foot is actually the suspension system of the engine, and if there is a problem with the engine foot, it will cause shaking when idling. The engine will increase the load due to the opening of the electrical system, causing the idle speed to slip, in order to compensate for the jitter caused by the idle slide, the engine will automatically pull up the speed a little. When the car's electrical system is turned on, especially in the summer, when the car air conditioning is started, the engine often shakes.

If the jitter at idle does not decrease due to the operation of the on-board air conditioning compressor, this jitter is likely to be caused by the aging of the engine feet, and it is necessary to replace the engine feet with new ones in time.

1. Oil circuit problem: The mail road problem is generally caused by the blockage of the oil circuit, resulting in poor oil supply, which is manifested as engine shaking and lack of waiting speed.

Stable and driving capacity stalling; In addition, engine shake will also occur when the oil pump fails, and the oil pump problem should be judged by disconnecting the oil pipe and checking the flow rate and flow rate.

2. Circuit problems: check whether the right fit is accurate, and the general ignition is not normal is the right fit problem; Check whether the spark plug has aged, whether the gap is the same, and whether the gap has changed; In addition, if the distributor does not work properly, it will also cause the engine to shake.

3. Mechanical reasons: check the running status of the engine, whether there is abnormal sound, valve sound; Check the working condition of the belt and whether it is loose.

Generally, it is good to replace the ignition coil and spark plug, and if these two are replaced, it is necessary to check whether the fuel injector will inject fuel.

The fault of starting jitter and ignition is focused on checking the gasoline pump, which needs to measure the fuel pressure, and the gasoline pump can not maintain the normal oil pressure in the normal area, which will lead to unstable idle speed after the cold car capacity starts, or the fault of stalling.

Check the carbon deposits in the throttle body, idle valve, fuel injector and air intake tract, as excessive carbon deposits will cause the vehicle to idle unsteadily or stall while driving. Secondly, it is important to check the crankshaft position sensor, camshaft position sensor, ignition coil and gasoline pump, which can also cause the vehicle to stall while driving.

There are many reasons, it may be that the spark plug is going to be replaced, it may be that the generator is broken, it may be that the idle motor is broken, it may be that the gasoline pump is broken, and you have to go to the car repair shop to find a professional for diagnosis.

This may be because you also have a spark plug ignition cylinder fire, or the gasoline is not pure, or the gasoline has too much moisture content or there are impurities in the gasoline, causing the cylinder to catch fire, and the shock occurs

Hello, try a new pair of spark plugs first.

Then look at whether each cylinder line is plugged in.

If the problem doesn't get better, it may be activated.

If a cylinder or a few answers do not work, it needs to be sent to the repair shop for maintenance.

Hello, it's best to clean the throttle and idle motor [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

It may be that the mixture is too strong and the combustion is not sufficient.

Car startup copy shake off, how.

What's going on? When encountering engine failure, the light disappears after restarting, most of which is because the sensor sensitive fuel and the engine do not match, and there is a kind of 95 98 often used, the fuel may not be too good to catch up with the occasional batch, the third is that the local ethanol fuel if the vehicle usually does not run much, the fuel is used up within 7 days as much as possible, otherwise the volatile ethanol will produce a large amount of water and then the fuel tank, the gelatinous fuel of the fuel tank, moisture and oxidation time for too long will cause the fuel injector to be blocked, the combustion is not good and shakes, and the flame is seriously stalled, The exhaust emissions were very black, and there was a serious lack of cylinder misfire. Don't worry about this kind of situation, if you encounter a new car, a quasi-new car can directly clean the oil circuit, here is not an advertisement, you can use this kind of fuel cleaner, I didn't say which one must be used, because I encountered a similar experience to solve it, I just use this clean good, the black emissions are not missing cylinders and do not exist, it is good after cleaning 3 times.

Now it's smooth, the low-speed throttle is easy, and the acceleration is quite powerful.

Cold car bai

The problem of starting out involves many aspects, and here are a few reasons why the commonly used car dao can encounter: inside.

2. There is too much carbon accumulation on the throttle, which is also the main reason for the problems such as unstable idling and stalling of the car. Go to a professional repair shop or 4S shop to clean the throttle.

3. The pressure of the gasoline pump is low or the fault is easy to cause the flameout due to the lack of oil.

4. Due to the long-term parking of the vehicle, the oil is viscous and the car stalls, this phenomenon is not much of a problem, and the car can be heated after the fire.

After the car starts, it is easy to turn off the fire, so you can do it yourself.

Car jitter is easy to turn off, specializing in these hands-on techniques in the store.

You can learn it by looking at it, as long as you can remove screws and clips. The detergent is only 50 yuan, and the cheap one is about ten yuan. Next, I will teach you how to judge and clean.

1. Judge whether the throttle is dirty: If the following three conditions are met, it needs to be cleaned.

1) Low idle speed and slight jitter.

2) When stopping at a red light, when the manual gear brakes and takes off the gear, the idle speed will drop very low or turn off. The automatic gear's throttle lift brake will suddenly stall without warning. It can be started immediately after the ignition is turned off.

3) From the idle start, feel the throttle pressed a little deeper to add oil, and the driving power is strong, everything is normal.

2. Cleaning method:

1) Turn off the engine, open the engine compartment cover, remove the engine cover, loosen the clip that holds the intake hose on the throttle, and remove the intake pipe from the throttle valve.

2) Put a rag under the throttle valve, one person turns on the ignition switch and presses the accelerator pedal all the way, at this time the throttle flip is fully opened.

3) One person will connect the cleaning agent to the catheter, and extend the catheter into the dirt inside the throttle valve, and spray it continuously for about 8 seconds.

4) Use a rag to wipe the carbon and sludge on the inner surface of the throttle and the reproduction, if it is not clean at one time, you can spray the cleaning agent on the rag, and wipe it several times with a cloth wet with cleaning agent until it is clean.

5) After cleaning, install the air intake pipe, if other pipelines are removed, they must be restored to place, and the engine should be started to check the idle status.

There may be many reasons for the vehicle shaking and stalling, such as the air intake system, fuel system, and ignition system, and any part of the three systems may cause the vehicle to shake and stall. It is advisable to go to the repair shop to check the repair.

There are three problems with vehicle shake (excluding those which screws are loose) one: engine shake, that is, the throttle is dirty.

Two: Gearbox shaking:

1: The friction plate inside the gearbox is seriously worn, and the surface is uneven, resulting in frustration when contacting!

2: The plunger inside the valve body is seriously worn, resulting in the plunger running poorly inside the valve body!

The reasons for the shaking when the car is turned off are: 1. The throttle is dirty or the fuel injector is blind to carbon accumulation; 2. Ignition system problems, check the working conditions of spark plugs, high-voltage wires and ignition coils, the ignition system is not working well, and the spark plug jumping condition is not good, which will also lead to this kind of failure; 3. The oil pressure is unstable, and the oil supply pressure and inlet pressure sensor are faulty; 4. The aging of engine parts, the shaking of the car is related to the aging of the engine foot, the engine foot is 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.

What is the cause of shaking when the car is turned off? What is the cause of shaking when the car is turned off? The reasons why there is shaking when the car is turned off are:

1. The throttle is dirty or the fuel injector has a lot of carbon deposits; 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 failure; 3. The oil pressure is unstable, and the oil supply pressure and inlet pressure sensor are faulty; 4. The aging of engine parts, the shaking of the car is related to the aging of the engine foot, the engine foot is 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. @2019

The reasons for the car shaking and stalling are: 1. The throttle valve is faulty: for example, the throttle is blocked and the throttle has carbon deposits; 2. There are too many impurities in the inlet tract, which leads to the inability of the driving computer to accurately control the idle air intake; 3. The spark plug is faulty, such as the electrode of the spark plug is ablated or damaged; 4. The use of inferior gasoline causes the oil pump to be blocked or the mixture is not fully burned in the cylinder; 5. There is a problem with the fuel injector, such as carbon accumulation in the fuel injector or blockage of the fuel injector.

The main reasons for unstable idling and 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 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 motor parts: Car shake is also related to 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 in the event of a sluggish speed.

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, resulting in no good smooth spike fuel in the later stage can participate in combustion, 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.

There are several reasons for engine shake:

1. The engine has serious carbon deposits, and the most common cars with serious shake are the injectors, the throttle valve is too dirty or too much carbon deposits, and the hand is wide;

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.

Specific solutions to idle jitter:

1. The engine has serious carbon deposits. The most common cause of idle judder is excessive carbon buildup on the throttle or fuel 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 chain judge is incorrect, it can also cause the body to shake when idling.

4. 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 beginning of 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 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 lead to no good fuel can 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.