How to solve the problem of gas in the fuel tank of the car? What s going on with gas in the tank?

In this case, the outlet pipe is generally blocked or the carbon canister is broken, you can go to the repair shop to blow the pipe with compressed air, if there is still this situation, you can replace the carbon canister.

Nowadays, most of the fuel tanks of vehicles are made of engineering plastics. The plastic fuel tank is a one-time injection molding, divided into several layers, and the structure is relatively durable and impact-resistant. Once the engineering plastic fuel tank is collided and ruptured, the fuel tank will not produce sparks, and the safety is better.

Metal and plastic fuel tanks have their own advantages and disadvantages. Metal fuel tanks can be repaired after they are damaged, while the impact resistance of plastic fuel tanks in extremely cold environments is unknown, metal fuel tanks will be corroded by moisture and acids in the fuel, and plastic fuel tanks will inevitably not react with some additives in gasoline.

Summary. Hello, there is gas in the fuel tank of the vehicle, which is generally caused by the blockage of the exhaust pipe of the fuel tank.

First, in this case, first check whether there is a problem with the exhaust line related to the location of the fuel tank? If there is a problem, it needs to be replaced.

Second, some fuel tanks have special air vents in the fuel tank cap, which will also lead to this phenomenon if there is a problem with the fuel tank cap.

The third situation is caused by the aging and blockage of the vehicle's carbon canister, which needs to be replaced with a new one.

How to solve the problem of gas in the fuel tank of the car?

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Hello, there is gas in the fuel tank of the vehicle, which is generally caused by the blockage of the exhaust pipe of the fuel tank. First, in this case, first check whether there is a problem with the exhaust line related to the location of the fuel tank? If there is a problem that needs to be replaced second, the fuel tank cap of some fuel tanks has special air vents, and if there is a problem with the fuel tank cap, it will also lead to this phenomenon.

The third situation is caused by the aging and blockage of the vehicle's carbon canister, which needs to be replaced with a new one.

The reason why there is gas in the fuel tank is because the air pressure inside and outside the car is different, and the air pressure in the fuel tank is higher than the outside, so the air in the car and part of the gasoline flow under the action of pressure to form a jet effect, when the air flow passes through a small space at high speed, the car will spew out the gas, which is actually a mixture of air and oil and gas.

1. There is a carbon canister inside the car, which is located between the gasoline tank and the engine, and the role is to balance the air pressure inside and outside the car, so if the fuel tank cover is uncovered and there is a jet phenomenon, it may be a problem with the car's carbon canister, which should be investigated in time.

2. The situation of automobile fuel tank jet has a lot to do with the season, especially in summer, when the temperature rises, the gasoline inside the car expands and partially vaporizes because of heating, resulting in higher pressure inside than the outside, so it is common to open the fuel tank cover and appear jet in summer.

Gasoline is volatile and may be the cause of gasoline volatilization. Here's an introduction to the reasons why the fuel tank is open and gasy:

1. Gasoline is a rapidly volatile liquid, and the volume of the liquid will increase when it becomes a gas. Coupled with heat, such as high temperature weather in summer, the oil pump in the tank will also produce heat, and both gas and liquid will expand when heated, and the expansion rate of gas is greater than that of liquid.

2. However, because the volume of the entire fuel tank space is fixed, the gaseous gasoline sealed in the fuel tank produces pressure, which is greater than the outside atmospheric pressure. If you open the fuel tank and there is a pressure difference between the two spaces inside the tank and the atmosphere, the gaseous gasoline with high pressure in the tank will be sprayed out. Therefore, it is not ordinary gas that is sprayed, but gaseous gasoline.

Summary. Hello dear, the solution to the car to open the fuel tank cap is to clean the blockage of the carbon canister. Cause Analysis:

It is normal for a small amount of gas to come out when the fuel cap is opened. If there is a lot of bubbling gas, it may be that the carbon canister is clogged, and gasoline is a volatile substance, which will naturally produce steam, but under normal circumstances, it is not allowed to be discharged in the air and will cause pollution. As a result, automakers designed carbon canisters with activated carbon to adsorb gasoline vapor in the tank.

Once adsorbed to a certain extent, the engine control unit will put the adsorbed oil into the combustion chamber and burn it. However, once the canister is clogged by dust and mud, resulting in the inability to adsorb oil vapor, the internal pressure of the fuel tank is out of balance, and the phenomenon of gas when the fuel tank cover is opened will occur. "So there's a lot of bumping, and it's possible that the canister is clogged.

Solution: Clean the canister.

Hello. Hello dear, the solution to the car to open the fuel tank cap is to clean the blockage of the carbon canister. Cause Analysis:

It is normal for a small amount of gas to come out when the fuel cap is opened. If there is a lot of bubbling gas, it may be that the carbon canister is clogged, and gasoline is a volatile substance, which will naturally produce steam, but under normal circumstances, it is not allowed to be discharged in the air and will cause pollution. As a result, automakers designed carbon canisters with activated carbon to adsorb gasoline vapor in the tank.

Once adsorbed to a certain extent, the engine control unit will put the adsorbed oil into the combustion chamber and burn it. However, once the canister is clogged by dust and mud, resulting in the inability to adsorb oil vapor, the internal pressure of the fuel tank is out of balance, and the phenomenon of gas when the fuel tank cover is opened will occur. "So there's a lot of bumping, and it's possible that the canister is clogged.

Solution: Clean the canister.

Hello dear, are you a small amount of gas or a large amount of gas.

Large gases. But there are still carbon canisters and electronic hair changes.

Your solenoid valve has also been replaced, right?

Yes. What do you think you're going to do now?

What area are you in now, and whether the pressure difference is more severe.

If there is a pressure difference with the atmospheric environment: after opening the fuel tank, there is a pressure difference between the two spaces inside the fuel tank and the atmospheric environment, and the gaseous gasoline with higher pressure in the fuel tank will be sprayed, and the spray is not ordinary gas, but gaseous gasoline, which is a normal phenomenon.

Are you at high altitude.

The reason why there is gas in the fuel tank is because the air pressure inside and outside the car is different, and the air pressure in the fuel tank is higher than the outside world, so the air in the car and part of the gasoline flow under the action of pressure, forming a jet effect, when the air flow passes through a small space at high speed, the gas will be sprayed out by the car, which is actually a mixture of air and oil and gas.

There is a carbon canister inside the car, which is located between the gasoline tank and the engine, and the role is to balance the air pressure inside and outside the car, so if the fuel tank cover is lifted and there is a jet phenomenon, it is possible that there is a problem with the car's carbon canister, which should be investigated in time.

The situation of the car fuel tank jet is also very related to the season, especially in the summer, when the temperature rises, the gasoline inside the car expands and partially vaporizes because of the heat, resulting in the internal pressure is higher than the outside, so it is common to open the fuel tank cover in the summer and the phenomenon of jet appears.

A similar phenomenon occurs when a driver goes to a gas station to fill up a full tank of gasoline and opens the tank cap again. This is because the gasoline in the car's fuel tank is saturated and the pressure rises, but the car will not only inject, but also inhale, so many car owners encounter this situation.

If the car fuel tank sucks, it means that there is a problem with the solenoid valve of the car, because at this time the car is the internal pressure is lower than the outside, and after opening the fuel tank cover, the outside air enters the fuel tank.

If you can't accurately identify the cause of the car's jet, you should go to a nearby 4S shop or auto repair shop in time to check your car, so as to fundamentally solve the hidden dangers and create a safe driving environment.

After the fuel tank cap is opened, the reason for the gas is that gasoline is a highly volatile fuel, and it will accelerate volatilization after shaking in the car fuel tank, and a large amount of oil and gas will be generated.

Summary. 1.Gasoline itself is very volatile, so there is gas in the tank.

2.This gas is the gaseous state of gasoline.

What's going on with gas in the tank?

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1.Gasoline itself is very volatile, so there is gas in the tank. 2.This gas is the gaseous state of gasoline.

There is an organic oil vibrator pump in the tank, and it will buzz when you hit the car. If it is not for the gasoline pump, then the pressure is too great, and the pressure inside the fuel tank is high, the main reason is that the ventilation hole of the fuel tank is blocked and the cover is broken. Generally, the solenoid valve of the carbon canister is damaged or the pipe from the carbon canister to the fuel tank is blocked.

There is no harm, if the pressure of the fuel tank is relatively large, it is more laborious to unscrew the fuel tank cap, and sometimes it will be more difficult to open.

Have you recently replaced the gasoline filter? The gasoline filter will ring if the model is not right.

Then there is no problem, if it rings, the main reason is that the solenoid valve of the carbon tank is stuck when the gasoline pump is working, and the pipe from the fuel tank to the carbon tank is blocked.

There is already air in the tank, and it cannot be discharged.

Startup Requirements. 1. Before starting the vehicle, check the start, audio signal, battery circuit, operation, braking performance, forks, and tires to keep them in good condition.

2. When there is a mechanical problem, you can't repair it yourself. The forklift should be switched off and the mechanics repairman informed.

3. When starting, check whether there are people and obstacles around, and then sound the horn to start.

4. When the forklift starts with loads, the driver should first confirm that the goods carried are stable and reliable. Start slowly and steadily.

As a driver, we will encounter such a situation, especially when we go to the gas station to refuel ourselves, we can see the deflating sound at the fuel tank filler at the moment of unscrewing, generally at the moment of unscrewing, this sound is like the sound that occurs when we drink Coke in summer, and the sound occurs when it is unscrewed, and this phenomenon generally occurs because the air pressure inside and outside the fuel tank of our car is not the same. It's normal to have it once in a while, but if you often hear such a phenomenon like this, then it will attract the attention of our riders.

On the outside of the fuel tank, each car has a part called the important part of carbon irrigation, this part plays a device to balance the internal and external air pressure, if you hear such a sound every time you refuel, it is also possible that the carbon irrigation is faulty, that is, the fuel tank can not discharge the pressure normally, resulting in an imbalance between the internal and external air pressure, so there will be such a sound.

So how can you tell if it's a real failure? First of all, look at the frequency of occurrence, or need to distinguish, is deflated or inhaled, if you can really hear the sound of deflating, it means that there is basically no big problem, especially in the summer high temperature, due to the large temperature difference between the inside and outside of the car mailbox, the increase in gasoline temperature causes the internal pressure of the fuel tank to increase, and it is normal for gas to leak out when opening the car fuel tank cap.

So on the other hand, if you can hear the suction sound, it mainly means that the internal pressure of the car fuel tank is less than the external pressure, and it is possible that the carbon irrigation or carbon irrigation solenoid valve is faulty, then this situation will cause two consequences, the first is that the internal pressure is too small, which may lead to the deformation of the fuel tank of our car, sometimes even the oil can not be added, we occasionally have such a situation when we usually maintain, the customer reflects that the gasoline can not be added, so come to the store for testing, Generally, it is also to see whether the carbon irrigation is in good condition, and to see whether the oil vapor carbon irrigation solenoid valve is damaged, and to see if the oil pipe is bent and deformed.

The second is that due to the car fuel tank and the outside air is not smooth, at this time the oil pump will always be fueled, and the gasoline pump of the car will be damaged for a long time.

The frequency of gas sound is generally more in summer, because the temperature is higher in summer, and the gasoline will expand after heating, because the space of the vehicle is fixed, and the gasoline sealed in the fuel tank will also have pressure, and the pressure inside is greater than the air pressure outside, so there will be sound when the fuel tank is opened, in fact, the sound problem at this time is not big.

If you hear the suction sound when you open the gasoline cover, it means that the carbon irrigation or carbon tube solenoid valve is faulty, it is normal to have a certain pressure in the car fuel tank, and it is impossible and will not produce excessive negative pressure. Otherwise, your vehicle will break down.

It is best to go to the 4S shop to inspect and repair and eliminate hidden dangers, otherwise it will lead to safety accidents and endanger life safety.

1. Normal situation.

Gasoline is a highly volatile liquid, in the hot summer, the fuel tank is closed to the outside world under normal conditions, to prevent oil and gas from escaping, and the oil pump in the tank will also produce heat.

Both gases and liquids expand when heated, and gases expand at a greater rate than liquids, but the entire tank space is a confined space and the volume is fixed. Therefore, the gaseous gasoline sealed in the fuel tank creates a pressure that is greater than the outside atmospheric pressure. As soon as the tank is opened, the gaseous gasoline with high pressure in the tank is sprayed out.

2. The carbon canister is blocked.

In summer, the oil in the fuel tank is more prone to internal and external air pressure imbalance, and the sharp rise in temperature at this time makes the carbon canister unable to deal with the air pressure imbalance in time for a while, so it is easy to open the fuel tank cover and have a jet sound. At this time, you should check whether the canister is clogged! Whether the canister solenoid valve is working properly.