Why does the car shake intermittently when it is idling?

1. Check whether the ignition system is faulty. Generally, it is caused by the ignition coil or the aging of the spark plug, and the damaged ignition coil or spark plug can be replaced. The inspection of the ignition coil needs to use the computer to read the specific fault code, if the corresponding cylinder has a misfire, it is generally a problem with the ignition coil.

2. There is too much carbon deposition in the engine. In this case, it is recommended to clean the carbon deposits in the engine, especially the carbon deposits in the intake tract and cylinder of the throttle. The carbon deposits in the cylinder are mainly the piston position and the valve base position, and then rematch the throttle.

3. Oil circuit failure. In this regard, it is necessary to check whether the fuel supply pressure of the gasoline pump is normal, and if the oil supply pressure is unstable, it is necessary to replace the new gasoline pump in time.

The instability of the car's idle speed may be due to the air intake system.

Fuel system. The operation of the mechanical system or ignition system is unstable.

This needs to be checked.

It may be carbon deposits.

Distributors. Spark plug.

Idle speed control switch.

Injector. Air flow meter.

Failure of the oxygen sensor, etc.

These can cause the engine to work unsteadily.

You're talking about lights that turn on and off intermittently with idling.

It's normal. After the car starts.

Electrical equipment in the car.

It is no longer powered by batteries.

Instead, it is powered by a generator in the car.

The power generated by the generator is the engine of the car.

The engine power of the car is unstable.

The electricity generated is also naturally unstable.

You're a '04 car.

I don't know how the landlord maintains it.

So here is just a rough indication of the possible directions.

Why is intermittent jitter when the car is idling Intermittent jitter is not a problem with accessories, the problem comes from poor combustion, which causes such a phenomenon. The oil circuit can be cleaned, and the gas station also regularly cleans the oil storage tank, not to mention the fuel tank of the private car. The oil circuit of the fuel tank is dirty, and if it burns badly, it will miss the post and catch fire.

Why is the intermittent shaking of the car when it is idling Is it bad for an engine with a large carbon deposit? No, the engine with large carbon deposits indicates that the engine technology is better, and the domestic fuel quality is not caused by poor domestic fuel quality.

1. The lack of cylinders in the engine, the lack of cylinders in the engine mainly refers to the fact that the engine has one or more cylinders that are not working normally, which is generally manifested as: the exhaust gas flow discharged by the car has obvious intermittent intermittentness, and the exhaust pipe shakes violently, and the shaking of the engine can be clearly felt, sometimes accompanied by a sudden sound. This is mostly related to ignition coil failure;

2. Carbon deposition problems include cylinder carbon deposition, throttle carbon deposition, spark plug carbon deposition, intake carbon deposition, etc., these positions are just closely related to the power output of the engine, when the carbon deposition inside the engine is excessive, the ignition energy of the car is reduced, and the air intake efficiency decreases, which eventually leads to the engine shaking, acceleration weakness symptoms;

3. Fuel system failure, adding inappropriate fuel labels (for example, No. 93 to No. 90), resulting in a decrease in the output power of the car and a decrease in power; Or due to the blockage of the vent of the fuel tank cover, the fuel tank switch, the fuel filter and the oil pipe between the fuel tank and the carburetor are partially blocked, which cannot meet the required oil volume, resulting in the mixture being too thin and the engine shaking;

4. Air intake system failure, air is one of the power of the engine, if the air filter is not cleaned in time for a long time, the lack of air volume will cause the combustible mixture to be too thick, so that the engine power decreases; In the case of a vehicle with a turbocharger, a failure of the supercharger can also cause the engine to shake during acceleration.

Intermittent shaking at idle speed is normal, many cars will appear, the general situation is that the throttle, fuel injector, and air intake tract are dirty, and a small part of the reason is that the spark plug ignition is not normal, but your kilometers are not much, so it's okay. It is recommended to run more high-speed or high-speed running, if the landlord can be cleaned, but more than 20,000 kilometers to wash these is a bit of a waste.

When the car is idling, why is there intermittent jitter It doesn't matter if the exhaust pipe is very black, this is a phenomenon of direct injection vehicles Although this is now a unique domestic status quo, Europe and the United States are not so black, you can use it regularly Si-You-Pu Fuel Additive Oil Circuit Cleaning The pipe is not so black.

When the car is idling, why intermittent shaking The new car direct injection engine pipe has a little bit of black ash is fine, but it is not too dark, too black must be bad burning, because the new car, so there will be no other problems, pay attention to observation, long-term black will cause the engine to accelerate the aging of the engine at high temperature for a long time, and a large amount of carbon accumulation in the combustion chamber is indeed very bad for the car, and the oil will be burned after a long time. Therefore, if the pipe is too dark, you should clean the oil circuit and keep a good oil circuit burning, so that it will not be very dark, which is not good for the car. My previous pipe was very black like coal impurities, and after using three divisions of fuel cleaner in a row, it is now very clean and there is some atomized water coming out.

Slight jitter is normal, if the jitter is more severe, you need to check it.

The most common cause of car shake is a dirty throttle or excessive carbon build-up in the fuel injector.

When the carbon deposit inside the engine is too much, the gasoline sprayed out by the cold start fuel injection head will be absorbed by the carbon deposit in large quantities, resulting in the mixture of cold start being too thin, making it difficult to start, in this case, only when the gasoline absorbed by the carbon deposit is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposit after the car will be sucked into the cylinder by the vacuum suction of the engine for combustion, and the mixture becomes thick, and the combustible mixture of the engine is dilute and thick, causing idle shaking after cold start.

Hello! If the car idles and shakes, it is very likely that a certain auto parts are in poor condition, and the following three kinds of poor auto parts will cause the car to idle and shake.

The first is the unstable oil pressure. If you have cleaned the engine carbon deposit, washed the throttle, changed the oil cushion and spark plug, etc., and still found that the body shakes when idling, it is recommended to go to the 4S shop to check the fuel supply pressure and intake pressure sensor, 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. The best solution is to check the oil pressure and replace the parts if necessary.

The second is the aging of engine parts, such as the aging of engine feet, which may cause the body to shake. The engine foot is actually the shock absorption system of the engine, and the engine foot is responsible for absorbing the subtle shake 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.

The third is that the engine throttle valve is too dirty or the fuel injector is too much carbon deposited and causes shaking. When there is too much carbon deposit, the gasoline sprayed by the cold start injector will be absorbed by the carbon deposit, resulting in the cold start mixture being too thin and difficult to start. The gasoline adsorbed on the carbon deposit of the car after the car is hit by the vacuum suction of the engine will be sucked into the cylinder for combustion, so that the mixture becomes thicker, and the combustible mixture of the engine is dilute and thick, resulting in idle shaking.

The solution is to clean the oil circuit and check whether the idle motor has carbon deposits and should be cleaned.

The oil supply of each cylinder is uneven (the new pump is unqualified).

Uneven pressure in each cylinder (e.g. valve leakage, cylinder leakage).

The governor parts are loose.

The idle speed is too low. Valve clearance is inconsistent, some large and some small.

Lack of cylinders. A cylinder is cut off from oil (or power).

Faulty nozzles (poor atomization, or uneven pressure, no oil injection at high pressures).

The plunger of the fuel injection pump is worn, and some cylinders have a large oil supply, and some cylinders have a small oil supply.

There is a blockage in the oil circuit.

The low-pressure oil supply pump (oil transfer pump) is aging. ......

What is the reason for the intermittent shaking of the car at idle The engine is very good, but the oil circuit is expensive and needs to be cleaned regularly, and the oil tank of the gas station needs to be cleaned once every 2 months, not to mention that the fuel tank of the family car is not sealed. Add a division-have-general fuel additive in the fuel tank to complete the cleaning.

What is the cause of the intermittent shaking of the car at idle I know how to use it, I don't know how to wash it, all kinds of peculiar smells come out, inflammation is coming, I have to take anti-inflammatory drugs, fortunately it is not serious enough to require surgery, otherwise it is inevitable to disembowel and break the belly. Take advantage of the young resistance and strong resistance, add a general fuel additive to the fuel tank for regular maintenance. In a good body, if you don't maintain it, you will soon not be able to do it.

What is the reason for the intermittent shaking of the car idle Ethanol tired fuel will deteriorate in 9 days, long-term ethanol fuel should still be cleaned under the oil circuit, long-term unclean, the fuel tank moisture is not good, the smell is great. Always the smell is large, it will burn badly for a long time, idle shaking will occur, and if it is serious, it will burn the engine oil to accelerate the aging of accessories. There is also the fact that gas stations are required to clean oil storage tanks, and it is not suitable for private cars to clean the oil circuits.

In the way of gas stations, regular addition to the fuel tank can solve the problem of dirty ethanol fuel moisture in the oil circuit. If it burns well, the smell naturally does not exist, and the new car has no odor, team. So it's not normal.

It needs to be cleaned.

There are many causes of idle jitter, the first of which is that the throttle is too dirty or the injector has too much carbon, which causes the mixture to be too thin for cold starts, which makes it difficult to start. Here the main throttle is dirty or the fuel injector is cleaned up, clean the oil, oil and gas separation, but it is impossible to separate all the oil, these oil vapors will be sucked into the intake manifold with the exhaust gas again, and the throttle valve at low temperature, it is easy to adsorb these vapors, deposited on the back, affecting the smooth intake, the throttle is too dirty to have four aspects that can affect the car shaking at idle, the circuit system, the oil supply system, the air intake system, the vacuum degree of each pipeline.

The spark plug has a lot of carbon deposit, and the ignition is poor due to serious ablation, and the spark plug needs to be replaced if the ablation is serious, and the carbon deposit can be cleaned up and used if there is carbon deposit. Check the oil injector and clean it. This phenomenon can also be caused by dirty oil circuits and carbon deposits in fuel injectors.

If you suspect that the throttle valve is dirty and causes intermittent idle jitter, the most direct way to deal with it is to clean the throttle and try to match it to see if there is any improvement. If possible, it is best to combine the diagnosis of the computer, check whether there is an abnormal fault code, and read the data flow analysis judgment will say that it is because the throttle is dirty, and many auto repair shop masters will also ask you to wash the throttle at every turn, as if washing the throttle is a panacea to solve the car problem. In fact, in today's cars, dirty throttle valves are not easy to cause engine idling.

There is also a possibility that the throttle position sensor is faulty, which will also cause the engine to shake at idle speed, and even at low and medium speeds, which will need to replace the position sensor or throttle assembly for maintenance. For example, the throttle valve has more carbon deposits, the spark plug is aging, or the rubber of the machine pad is hardened, etc., the continuous accumulation of problems in the use of these vehicles will cause the vehicle to shake after tens of thousands of kilometers of use, check and eliminate the problem one by one! Once there is a gap jitter at idling, then we need to analyze the specific situation, which is roughly the following situations.

Is it normal for a new car to have a slight shake at idle is it normal for a new car to shake its engine at idle is it normal for a new car to shake its exhaust pipe at idle speed is it normal for a new car to shake a little bit at idle speed is it normal for a new car to have a little jitter at idle How to tell if it is normal for a new car to idle and shake.

This kind of shaking indicates that the engine has carbon deposits, and it is best to clean it quickly, otherwise it will be more serious.

Idle jitter caused by insufficient battery voltage.

Some cars will shake when idling in situ when turning on the headlights, and the glass will not release the lift button in time after the glass is raised to the head, which will also cause idle shaking, which is likely to be the battery is insufficient.

The idle state refers to the working condition of the engine when it is idling, that is, when the engine is running, the accelerator pedal is completely relaxed, and the engine is in the idle state. The speed at which the engine is idling is called idle speed, which is the minimum speed at which the engine can maintain normal operation without external output.

Intermittent jitter is caused by carbon deposition in the engine, and cars with a certain number of years have such symptoms, as long as it is not a continuous jitter, there is no problem, and the throttle can be cleaned up.

There are four main reasons for body shake at idle: 1Serious carbon deposits in the engine The most common cause of car shake is dirty throttle valves or excessive carbon deposits in fuel injectors.

When the carbon deposit inside the engine is too much, the gasoline sprayed out by the cold start fuel injection head will be absorbed by the carbon deposit in large quantities, resulting in the mixture of cold start being too thin, making it difficult to start, in this case, only when the gasoline absorbed by the carbon deposit is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposit after the car will be sucked into the cylinder by the vacuum suction of the engine for combustion, and the mixture becomes thick, and the combustible mixture of the engine is dilute and thick, causing idle shaking after cold start. In addition, the lower the temperature, the greater the amount of oil required for the cold start, and the more the presence of carbon deposits will affect the smooth cold start. The solution is to clean the oil circuit and check whether the idle motor has carbon deposits that should be cleaned.

2.Ignition system problems Check the working condition of the spark plug, high-voltage wire and ignition coil, poor ignition system work and poor spark plug flashover condition will also lead to this kind of failure. The solution is to check the spark plug for excessive carbon accumulation and replace the spark plug.

3.If you have cleaned the engine deposit, washed the throttle, changed the oil pad and spark plug, etc., and still found that the body shakes when idling, it is recommended that you 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 abnormal or the intake pressure sensor value is wrong and the work is poor, the body will shake. The solution is to check the oil pressure and replace the parts if necessary.

4.Aging of engine components Car shake is also associated with aging of engine feet. The engine foot is actually the suspension system of the engine, and the engine foot is responsible for absorbing the subtle shake 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.