How to judge whether the car should be cleaned of carbon deposits?

How to judge whether the vehicle has serious carbon deposition can be judged from the idle state, fuel consumption level and power level of the vehicle.

1, in idle state, serious carbon deposition on the throttle may lead to poor intake, insufficient combustion, unreasonable air-fuel ratio, unstable idle speed, and occasional obvious jitter. But it is not certain that it is carbon deposit, perhaps cylinder liner and spark plug, so we should make a comprehensive judgment.

2. With the increase of fuel consumption, the carbon deposit inside the engine is serious, such as the top of the piston, the fuel nozzle, the spark plug, etc., and the combustion efficiency will be lower and lower. The direct impact is that the fuel consumption is getting higher and higher, the power is getting worse and worse, and the carbon deposition will increase rapidly, which is a vicious circle. If these situations are clearly reflected, it is necessary to clean up the carbon deposit once.

It can be judged not only by the driving state of the vehicle, but also by observing the tail pipe of the exhaust pipe. Dip the inside of the exhaust pipe with a tissue. If it is black dry powder, there is no problem, the exhaust pipe will have this color; If it is a colloidal attachment of sludge, it also means that there may be too much carbon deposition.

Finally, referring to the time of car use, the carbon deposit has not been cleaned for 3~4 years in a row. If the engine has these symptoms, it can be cleaned effectively. The entry-level cleaning method can be "hanging bottles", and the thorough cleaning can be grinding and sandblasting. The effect is quite good for your reference.

Pay attention to Tianhe and cars when choosing a car, and update interesting questions and answers every day when buying a car. Just like when a person's nose is blocked, he will feel breathless and the whole person will be weak and listless. When the engine has too much carbon, it will also be "listless". Many car owners have had this experience. After driving for several years, the dynamic performance of their car is getting worse and worse. Excessive carbon deposition is one of the important reasons.

When there is too much carbon deposit, we naturally have to send it to a professional repair shop to clean up the carbon deposit. So how do you judge whether your car contains too much carbon? After learning these four methods, I can also know that I am close.

Dynamic performance degradation

When the engine has too much carbon deposit, the carbon deposit attached to the spark plug will weaken its ignition ability, and the carbon deposit attached to the throttle will also affect the intake air volume, resulting in insufficient intake air volume. Then, after the mixture of fuel and air enters the engine combustion chamber, the ignition ability of the spark plug is insufficient, resulting in insufficient fuel combustion. This will not only reduce the power, but also continuously produce carbon deposits, forming a vicious circle.

Increased fuel consumption

When the power drops, the owner feels that the power is very fleshy, so if he wants to speed up, he will naturally step on the accelerator, so the fuel consumption will soar. In the long run, the owner will lament how this car has become an "oil tiger" and all the money in his pocket has been fed to it.

The idle speed is unstable during cold start.

If the idle speed of the engine is unstable and accompanied by obvious jitter after the cold start of the vehicle, the carbon deposition inside the engine is also serious and the exhaust gas will be pungent. Although the tail gas smells bad, you can still tell if the thorn is not pungent.

Observe the inside of the engine

When the vehicle stops running, observe whether the fuel filler cap is dirty after five minutes. Also check whether there is black carbonized powder in the engine. If it is found, it means that the engine carbon deposit is quite serious and needs to be cleaned up quickly.

Engine carbon cleaning is indeed a very broad concept. Various experts on the Internet say that your car needs to be cleaned up after running for a period of time. It is also this sentence that has caused all car owners to be confused. When will my car be cleaned of carbon? Automobile Profile gives you some basic common sense judgments about carbon deposition. If your car has the following characteristics, it means that your car needs to clean up carbon deposits.

1. Vehicle idling jitter. Under normal circumstances, when the vehicle engine is idling, the engine speed is very stable, and the engine speed fluctuates between 20 and 30 revolutions. When the engine is stable, if the engine speed of your car fluctuates greatly and the owner feels that the vehicle is humming or shaking slightly, the owner needs to consider whether the engine of your car has too much carbon deposit.

2. Insufficient vehicle power and increased fuel consumption. Carbon deposition occurs inside the engine, and the most serious influence is the air-fuel ratio of the engine. The engine air circulation is not smooth, the fuel injection is uneven, and there is a problem with the mixing of fuel and air. It is difficult for the air-fuel ratio inside the engine to reach the ideal value, which makes the fuel efficiency of the engine deviate. In this case, the engine can't play the best fuel economy, the vehicle has insufficient power to step on the accelerator, and the fuel consumption of the vehicle is much higher than before. At this time, the car mainly carefully considers whether there is carbon deposit inside the engine.

3. Vehicles often travel under urban road conditions and often travel short distances. The phenomenon of engine carbon deposition mainly occurs under the condition of poor fuel efficiency. When the engine is cold started and the vehicle speed is low, its fuel efficiency is low, and it is easy to form carbide particles, which attach to the engine (piston, nozzle, spark plug, air intake and exhaust port) and eventually form carbon deposit. Therefore, vehicles driving under urban road conditions for a long time should be pulled at high speed to remove carbon deposits from the engine.

Engine carbon deposition is a serious fault of vehicles, which will not only increase the development cost, but also cause engine cylinder pulling due to excessive carbon deposition.

If there is carbon deposition in the vehicle, it is a very bad thing for the owner, but there is no way to stop it. This requires the owner to always pay attention to the state of the vehicle. So what are the symptoms of carbon deposition in vehicles?

In fact, when the vehicle starts driving, carbon deposition is gradually generated. After reaching a certain level, the vehicle will appear in some States, which need the attention of the owner. However, there are too many states of carbon deposition. Today I will sort out some obvious symptoms. If it appears, you can consider cleaning up the carbon deposit.

The first is idle jitter. Generally, the idle speed of vehicles is very stable, and some better cars are difficult to detect even when waiting for a red light. If the jitter is obvious, it means that there may be carbon deposit on the throttle and it needs to be checked.

Secondly, the acceleration is obviously weak, and the acceleration is good at ordinary times. As a result, it is very difficult to accelerate now. This may be caused by carbon deposition in the intake manifold and fuel nozzles. Check and handle.

The third is to turn off the fire for no reason, and even sometimes the idle speed will turn off after starting. At this time, carbon deposition may be very serious, and it needs to be checked quickly.

Finally, there is a sudden increase in fuel consumption, which is likely to be carbon deposition in fuel injectors and spark plugs. I suggest checking it.

There is carbon deposit, so we can only clean it up. The so-called high-speed removal of carbon deposits is only a temporary solution. In addition, we can consider using some products, such as fuel treasure, to make the fuel cleaner, and also to clean up the carbon deposit and delay its generation speed.

Generally speaking, it is necessary to treat carbon deposits scientifically, remove carbon deposits scientifically, and pay attention to daily maintenance to delay the formation of carbon deposits, so as to minimize the harm of carbon deposits to vehicles.

Under the premise of normal maintenance, there is generally no need to clean up carbon deposits. There are only two cleaning items, one is to clean the throttle and the other is to clean the injector. If the throttle valve is not cleaned for a long time, it is easy to be attached by sludge. If it is too dirty, it will increase the throttle opening, which will easily cause engine idling instability and jitter. Generally, it is enough to clean the throttle after 20-40 thousand kilometers.

For nozzle cleaning, fuel additives can be used regularly, or bottles can be used for cleaning. When cleaning the nozzle itself, it will clean the carbon deposit inside the engine, but the cleaning position is different with different nozzle positions. The engine injected by intake manifold can clean the carbon deposit in nozzle, intake port, valve back and combustion chamber.

Direct injection engine can only clean the carbon deposit in the fuel nozzle and combustion chamber, and it is useless in other positions. If there are serious phenomena such as insufficient power, increased fuel consumption, increased noise and jitter, it is necessary to consider whether it is necessary to clean up the carbon deposits. If there is no problem, there is no need to clean it. Many cars have driven hundreds of thousands of kilometers without cleaning up the carbon deposits, and there is nothing unusual about the engines. Therefore, the problem of carbon deposit cleaning depends on the situation, and there is no fixed standard.

It's not easy to start the car when it's cold, and it's normal to start the car many times.

Engine idle speed is unstable, high and low; When filling up with empty oil, I feel that the acceleration is not smooth, and I feel very annoyed and can't drive.

Especially when overtaking; Slow speed response, unable to reach the original vehicle power;

The tail gas is dazzling and pungent, seriously exceeding the standard, and the fuel consumption is higher than before.

It should be cleaned under normal circumstances.

You can go to a 4S shop or a quick maintenance shop and check whether the carbon deposit on the engine is serious with an endoscope.

According to routine maintenance, under normal circumstances, carbon deposition will not be too serious, unless idling for a long time, it will cause a lot of carbon deposition.

Very simple, two methods;

1. According to the number of kilometers, wash the throttle every 20,000 kilometers. Clean the combustion chamber every 50 thousand kilometers. 50,000 kilometers, cleaning the throttle and air intake carbon deposit.

2. If an abnormal cycle comes, check the throttle, valve, combustion chamber, ignition coil and cylinder for carbon deposition as much as possible in the case of jitter, abnormal fuel consumption, increased noise and vehicle setback. Clean it up by the way.

Attention, now more and more cars are turbocharged direct injection engines, so we must pay attention to the carbon deposition in the valves and combustion chambers, otherwise it will be easy to cause major failures when the kilometers are long.

How to judge whether cars should be decarbonized?

The power of a car is converted from heat energy, so every car will produce carbon deposit when it is fueled. If it is not cleaned for a long time, it will affect the service life of the engine. So how do we judge whether carbon deposition is needed?

First, confirm the route according to the mileage.

In order to ensure the better working condition of the vehicle, it is suggested that the carbon deposit in the engine of the vehicle should be cleaned at least once every 40,000 kilometers. If there is violent driving or poor driving, it should be cleaned in advance.

Second, according to the working condition of the engine.

There is a large amount of carbon deposit in the engine, which will lead to engine instability and engine jitter. If such a phenomenon is found, it is necessary to clean up the carbon deposit in the engine in time to ensure the normal operation of the engine.

Third, confirm according to the power of the car.

In our daily trips, we found that our car power was obviously insufficient, and the power loss of our car was too great compared with before. At this time, it is necessary to check the carbon deposit inside the engine in time and clean it up in time to reduce the power loss of the engine.

Fourth, fuel consumption.

Due to the increase of carbon deposition, automobile power will cause losses and fuel consumption will also increase. If the fuel consumption is too high, it is recommended to check and clean up the carbon deposit.

There are many ways to judge whether the engine carbon deposit needs cleaning. If you have a strong hands-on ability, you can disassemble some parts to observe and deal with them, which is the most accurate. If you have a better judgment method, you can discuss it in the comments section.

The simplest and most intuitive way to judge whether the vehicle should be cleared of carbon deposits is to take it apart for inspection.

The parts that produce vehicle carbon deposit are throttle, intake pipe, combustion chamber, etc. Fuel-powered vehicles are bound to produce carbon deposits. Serious carbon deposition will lead to a series of problems such as engine power decline, oil consumption increase and exhaust pollutant emission increase.

Generally, the carbon deposition in direct injection engine is more serious than that in manifold injection engine. For example, there are a lot of carbon deposits in the engine, which may make it difficult to start cold, sometimes even fail to start once, and may shake when it is under heavy load or idling.

If it is found that the vehicle consumes more fuel than usual, accompanied by unstable idle speed, weak acceleration, jitter and other phenomena, it can be combined with the diagnostic computer to read the data stream, check whether there are abnormal fault codes, check whether the spark plug and ignition coil work abnormally, or whether there is serious carbon deposition. For example, the radical solution is to remove the throttle and intake pipe, and use tools such as cleaning agent and toothbrush to clean up the carbon deposit bit by bit.

What is carbon deposition? Old drivers are no strangers to carbon deposition. Carbon deposition is the residue produced by incomplete combustion of unsaturated olefins, colloids and dust impurities in engine oil and fuel at high temperature during engine operation, which does not accumulate with exhaust gas in various positions in the system in time to form black charred substances, which is called "carbon deposition".

Generally, it is cinder-like, which can adsorb gasoline. In this way, gasoline with incomplete combustion will turn into carbon deposit, causing a vicious circle, and the carbon deposit will become thicker and thicker, and even the intake valve will be blocked by half.

The formation of carbon deposit takes a long time, and the formation time is related to the use environment of the car, engine structure, engine oil, gasoline and driver's operation.

It will be deposited in various parts of the engine, such as throttle, intake manifold, fuel injector, back of intake and exhaust valves, inner wall of combustion chamber, piston tip, exhaust system, exhaust gas recirculation system, crankcase ventilation system, three-way catalytic converter and so on.

How to judge the carbon deposition of vehicles? As the carbon deposition on the intake manifold, engine valves, fuel injectors and pistons becomes more and more serious, it will have an impact on the vehicle itself:

If the vehicle is in the above situation, it means that the carbon deposit is serious and should be cleaned in time. It is suggested that you can go to the 4S shop to make an appointment for cleaning and maintenance service to clean the car carbon deposit.

How can I reduce the accumulation of carbon deposits when driving at ordinary times? Carbon deposition in automobile engines is inevitable, so when we talk about how to reduce carbon deposition, we can only reduce carbon deposition from human factors.

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