Is it normal to find that there is a smell of gasoline in the car after refueling?

Be calm and find the gasoline taste**. In general, there is no smell of gasoline in the car. And where does the smell of gasoline come from?

We all know that the fuel system of a car is a very airtight system, so there is no smell. At this time, if our car smells of gasoline, some parts of the car will be damaged, resulting in gasoline leakage. Carbon canisters.

Rubber pipes, aging carbon canisters and throttle valves.

After opening the engine compartment cover, if there is a leak in the interface, it can be judged that after a period of time, dust will be adsorbed on the surface and oil will be formed. There was a smell of gasoline in the car, so it turned out to be something like this.

After the gasoline pump is disassembled. The work of disassembling the gasoline core needs to be done in the car, and some omissions may occur in the process, and the replacement cycle of the gasoline pump is about 60,000 to 80,000 kilometers, so this is not common. Workaround:

Go back to the 4S shop and confirm the installation defect of the gasoline pump. Non-motorized vehicles.

There was a smell of gasoline in the car, so it turned out to be something like this. When the gasoline is too full, the gasoline will enter the canister along the pipe, and the canister used to collect the gasoline vapor, after invading the gasoline, the vent will release excess gasoline vapor, and when the air conditioner is in the external circulation state, the smell of gasoline will enter the car. There was no great solution at the time.

After the air conditioner is transferred to the internal circulation state for a period of time, the gasoline is naturally consumed, and the excess gasoline vapor of the carbon tank enters the cylinder for combustion under the action of the negative pressure of the engine, and the excess gasoline vapor will not overflow in the carbon canister, and the gasoline smell disappears. But there is another special case.

Some models place a carbon canister in the engine compartment, and the carbon canister overflows, and after the gasoline evaporates, there will be a smell of gasoline on the car. Even if most cars place a carbon canister under the car, it is not completely possible to avoid the gasoline vapor spillage and the gasoline smell. Especially in congested road situations, there is a high chance that gasoline vapor will pass through the windows or air conditioning system.

Get inside the car. Some car owners do have this habit when refueling, but if you fill up too much, the gasoline will spill out of the tank and into the canister, which will not only hurt the canister itself, but also expel too much gasoline vapor from the vents.

Of course, this is normal, because you have just come out of the petrol station, so it is very normal for the car to smell of gasoline after filling up the gas.

It is a normal phenomenon, every car will have some gasoline smell just after refueling, don't panic at this time, it is a very normal phenomenon.

This is normal. Because after just filling up gasoline, it is inevitable that there will be a smell of gasoline in the car, or if the gasoline is overfilled, there will be some gasoline leakage, so this is a normal phenomenon.

The following may be the cause of the gasoline smell.

The fuel supply pipeline is damaged, or the gasoline filter is faulty, some cars are equipped with carbon canisters, whether they have not been replaced for a long time, and the working condition of the engine will also make the car smell of gasoline, if a cylinder failure does not work or the combustion is not sufficient, the air conditioner starts to circulate after the air conditioner is turned on, and there will be a great smell of gasoline.

Where does the smell of gasoline come from? And why? Let's take a look.

1. It may be that the owner refueled the gasoline too much, although the fuel filler did not leak, but the gasoline entered the carbon tank along the pipeline, and the result was that the carbon tank was released even the gasoline when releasing steam, if the air conditioner was in the external circulation state at this time, the car could smell the gasoline smell.

2. If there is a gasoline smell when starting, it is normal, because when the car is cold, the temperature of the engine has not reached the optimal temperature, and the combustion will be insufficient, and the cold car has just started, and the engine computer board will let the nozzle spray more gas in order to make the temperature of the car engine reach the working state faster, so the mixture of the combustion chamber is very dense. When the engine reaches the normal working temperature of 80-90 degrees, the oil and gas in the cylinder are fully combusted, and the gasoline smell disappears. This is normal.

3. It may also be caused by the air conditioning cycle, which is like this, first of all, when the circulation mode is set in the state of external circulation, the air conditioning airflow enters the car through the external circulation intake port outside the cab, so for the problem of gasoline smell when you describe the open external circulation mode, it is recommended to first check whether there is exhaust gas leakage in the engine exhaust system, and then if you can smell the obvious gasoline smell in the process of driving, then for safety reasons, you need to check whether there is fuel leakage in the fuel systemThe second is to check whether there is any damage or abnormal connection caused by fuel vapor leakage in each pipe connected to the fuel tank, such as carbon canister lines, refueling lines and ventilation lines.

4. The rubber pipeline in the engine compartment will be aging for a long time, and once it is aged, the gasoline may leak out, which will occur in the general car with a longer age. The solution is also very simple, only need to replace the aging rubber tube.

The reason why the smell of gasoline in the car is very strong:

1.Some mixers don't burn sufficiently, so you get some strong gasoline smells.

2.There is a problem with the canister or canister solenoid valve, which causes the mixture to be too thick when starting.

3.Too much carbon deposits inside the engine cause poor atomization of the mixture.

4.The gasoline vapor inside the canister fills the entire canister, and the rest of the gasoline vapor escapes into the atmosphere.

5.There is a leakage phenomenon in the fuel injector.

It is likely to be caused by leakage in the gasoline pipe, and it is necessary to check the gasoline pipeline in time to avoid serious problems.

It may be that the rubber pipe is aging, so it is easy to have some oil leakage, which will make the car smell of gasoline.

The car's petrol may be leaking, at this time you should get out of the car and check the fuel tank to see if there is a problem with the gas tank.

There is a gasoline oil gas vent next to the gasoline filling hole, which is used to evaporate gasoline into oil and gas when the fuel tank of the car rises due to the increase in temperature. The function of the vent is to keep the pressure in the fuel tank greater than the atmospheric pressure to prevent the engine from stalling. When this vent is blocked, the evaporated oil and gas will be released elsewhere because it cannot be released, and the smell of gasoline will appear in the cab.

Therefore, when there is a smell of gasoline in the car, you can use compressed air to blow towards the vents. If the vent is open, you should be able to hear the sound of air coming out of the gasoline filler. Sometimes the smell of gasoline in the car is caused by a ruptured fuel pipe and a poor closure of the fuel tank cap.

Nozzle leakage, incomplete engine combustion, etc.

There are several possible scenarios for the smell of gasoline in the car.

1. The fuel tank cap is not well sealed, and it needs to be replaced or the butter is 1 mm thick under the leather pad;

2. There are slight cracks or damages in the oil supply pipeline;

3. There is a gap between the oil pipe and the oil tank (the clamp is not tight).

After filling up the gas, the smell of gasoline in the car is particularly strong, what is going on?

The car is a complex whole, there are too many parts, and it is inevitable that there will be problems with each part after a long time, and many car owners sometimes encounter it: when there is a strong smell of oil in the cab, in fact, sometimes it is not necessarily caused by oil leakage.

This situation is also related to this seemingly inconspicuous but very important part, such as the carbon canister. A canister is a canister filled with activated carbon, which is part of the gasoline evaporation control system and is used to control the evaporation of automobile fuel, emission pollution and reduce fuel loss.

In any case, once you smell gasoline in your car, it's best to park your car in a safe place as soon as possible and check it out for your safety.

The principle and function of the carbon canister can be understood as follows: when the engine is turned off, the gasoline vapor is mixed with fresh air in the tank and stored in the activated carbon canister; When the engine starts, the solenoid valve of the carbon canister installed between the activated carbon canister and the intake manifold will be opened, and the gasoline vapor in the activated carbon canister will be brought into the cylinder by clean air to participate in the engine combustion under the action of the vacuum degree of the intake pipe, which has the advantage of reducing emissions and fuel consumption!

Carbon canister solenoid valve, since 1995, China has stipulated that all new cars must have this system. However, if a fault occurs, the following problems may occur.

The solenoid valve of the canister was always open, causing all the gasoline vapor in the tank to enter the intake manifold, and the engine computer detected that the mixer was too heavy for the vehicle to start.

If the solenoid valve of the carbon canister is always closed, it will lead to the saturation of gasoline vapor in the carbon canister, the excess gasoline vapor will be directly dispersed into the atmosphere, and the gasoline in the car will smell strong.

In addition, it is not recommended to refuel too full, there are many disadvantages for a while, if the gasoline is too full, there is a possibility that the gasoline enters the carbon tank along the pipeline, and the carbon canister originally used to collect gasoline vapor will release excess gasoline vapor from the vent hole after invading the gasoline, and when the air conditioner is in the external circulation state, the gasoline smell can enter the car. The life of a normal carbon canister should be more than 50,000 kilometers, but after immersion in oil, it will be scrapped immediately!

Summary: The canister, as well as related pipes and gasoline pipes, can be the source of gasoline smell, which then enters the car through the windows or air conditioning system. If you encounter such problems, you can pay attention and check them to avoid causing similar problems.

If there is a smell of gasoline in the car, first check whether the fuel tank cover is tightened, then check whether the carbon tank is blocked, and carefully check whether there is oil leakage in the gasoline filter interface and refueling pipeline; Cold car, the oil pressure in the fuel line is low, can not maintain the normal oil supply pressure, before starting, it is best to turn the key door to the second gear position, the gasoline pump will automatically run for a few seconds to reach the normal fuel pressure. If the smell is severe, it's a problem with the gasoline pump.

See if the mailbox is well sealed, and if the seal ring is damaged?

First check whether the pipeline is leaking, this is not very likely, if it is an EFI truck, see if the activated carbon tank is working normally, it absorbs the oil vapor in the mailbox and the pipeline, if it is broken, it will smell, and then look at the waste valve, and there is a bad seal The small noodles are like this

<> "What should I do if I always smell of gasoline in the car?"

There is a smell of gasoline in the car, which many car owners have experienced, especially old cars. It is because the parts of the car are damaged and there is oil leakage. This situation must be repaired immediately, otherwise the consequences will be unimaginable.

What to do when you smell gasoline in your car? Let's summarize some common causes of gasoline smell and how to deal with it?

1. The rubber pipeline of the carbon canister is aging.

The rubber hose that connects the canister to the throttle valve may leak if it deteriorates. This is a good solution, you only need to replace the rubber hose.

Second, there is oil leakage in the gasoline pipe.

Leaks occur in gasoline pipes, mostly at the joints of pipelines. You can open the engine cover by yourself, and you can tell it by visual inspection. If there is a leak at the joint, a certain amount of sludge and dust will be adsorbed on the nearby surface.

When there is oil leakage at the joint of the gasoline pipe, you can tighten it first, or repair the interface, and the gasket should also be replaced.

3. After disassembling and assembling the gasoline pump.

When we disassemble and assemble the gasoline pump, we need to work in the car, and it is inevitable that there will be leakage in this process, and it is normal to have gasoline in the car after replacement. About 100,000 kilometers will need to replace the gasoline pump. If the smell of gasoline persists, you will need to go to the repair shop to check for installation defects.

Fourth, the outside world is transmitted into the car, not your own car.

Then you just need to use the inner loop mode to solve the problem.

If the gasoline tank is too full, it is very likely that the gasoline will enter the carbon tank along the pipe, and the role of the carbon tank is to collect the vapor produced by the gasoline. In this case, you can only open the window for ventilation or modulate the air conditioner to circulate inside, and after driving for a period of time, the smell will naturally disappear.

Therefore, when refueling every day, do not fill the fuel tank, you can prevent gasoline from overflowing from the fuel tank into the carbon tank, if you do not change this habit for a long time, it will not only harm the carbon tank, but also affect your health with the smell of gasoline.

When the gasoline is overfilled, the gasoline may flow into the carbon tank along the oil circuit, and the role of the carbon canister is originally used to absorb gasoline vapor, when immersed in gasoline, it is possible to excessively emit gasoline vapor from the vent hole, especially when the air conditioner is in the state of external circulation, the gasoline smell is particularly serious.

We all know that in addition to gasoline liquid, the fuel tank will also be filled with gasoline vapor, when the gasoline vapor gradually increases and cannot be dissipated, then the pressure in the fuel tank will change, which will affect the normal fuel supply, and may be blocked when filling gasoline. Some people will encounter such a problem, even though the fuel gauge shows that it has not been filled, the fuel gun jumps in advance, most of which are caused by the above reasons.

If the gasoline vapor is directly discharged, it obviously does not meet the increasingly stringent environmental protection policies and emission standards, therefore, the carbon canister has become the solution, through the carbon canister, the gasoline vapor is carried out, and then sent to the cylinder for combustion, so as not to waste, and reduce emission pollution.