The smell of gasoline in the car is very strong, what s going on

The smell of gasoline in the car is very high for the following reasons:1. Fuel tank cap: The fuel tank cap is not well sealed, and it needs to be replaced or coated with 1mm thick butter under the skin.

2. Oil supply pipeline: The oil supply pipeline is slightly ruptured or damaged.

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

4. Pipeline: The carbon canister is filled with gasoline (absorbed). Also check the air intake filter pipe in the hood, the pipe of the evolution oil pump (similar to the EFI car), and those rubber pipes, which are easy to break after a long time.

There is a high probability that the oil return pipe on the fuel tank or the connection between the oil pump and the oil pipe is loose or cracked, because it is under the rear seats, and also under the carpet of the trunk, so the leak will cause the smell of gasoline in the cabin.

The rubber tube of the canister is aging and is responsible for connecting the canister to the throttle. As the driving range increases, the rubber pipe will gradually deteriorate, causing gasoline vapor leakage, so that the smell of gasoline in the car will always be there.

What should I do if I suddenly smell gasoline in my car?

1.Pull over to the side of the road immediately.

Don't panic at this time, find a street parking first.

2.Get out of the car and look for the gasoline-smelling **.

First of all, through the preliminary identification of odor, the characteristics of odor can provide a certain basis. If it's just pure gasoline smell, it's unlikely, but if it's mixed with a pungent rubber smell, there may be signs of **. It is really necessary to extinguish the fire quickly and call the fire alarm**.

If there is no other odor, open the hood for a specific inspection. At this time, pay attention to personal safety.

The following are the reasons why the smell of gasoline in the car is very strong: 1. Under the condition that the outside temperature is very low, when the water temperature and exhaust pipe temperature are low, and the outside temperature is too low when the engine starts coldly during winter driving, the mixer at this time is relatively strong, so some mixers can not be fully burned and are directly discharged from the exhaust pipe, so some strong gasoline smell will be smelled. This is normal.

2. It may be because of a problem with the carbon canister or the solenoid valve of the carbon canister, resulting in the mixture being too thick when starting. 3. If the local temperature is low and the carbon deposit inside the engine is too much, resulting in poor atomization of the mixture, it will also lead to the occurrence of this phenomenon. 4. If the solenoid valve has been closed, the gasoline vapor in the carbon canister will gather more and more, and eventually fill the entire carbon canister, and the rest of the gasoline vapor can only escape into the atmosphere, and the gasoline smell will also appear.

5. There is a leakage phenomenon in the fuel injector, which leads to the mixture being too thick, and the unburned mixture will be discharged from the exhaust pipe, thus causing the gasoline smell to be large.

The reasons for the heavy smell of automobile gasoline are mainly reflected in the following aspects:1. Aging of rubber tubes in carbon canisters.

2.There are holes in the gasoline pipeline. 3.

There is residual gasoline when the gasoline pump is removed. 4.The oil is too full.

After the car starts, when the engine reaches the normal operating temperature, the oil and gas in the cylinder will be fully burned, and the smell of gasoline will gradually disappear. If the smell of gasoline is still very strong after the car is hot, the carbon deposits are more serious and need to be repaired and removed. There is a leak in the nozzle, which can cause the unburned mixture to escape from the exhaust pipe, and the gasoline smell will be particularly strong.

If there is a smell of gasoline while driving, it may be that the engine is missing cylinders. The unburned gasoline is discharged through the exhaust pipe, and when the car slows down, the smell enters the cabin.

If there is a smell of gasoline in the cabin, it is likely that the oil outlet on the fuel tank, the return pipe, or the interface between the oil pump and the oil pipe are loose or cracked, because it is under the rear seats (and also under the trunk carpet), so the leakage will cause the smell of gasoline in the cabin. In this case, it should be checked and repaired as soon as possible to avoid serious consequences.

Generally, there will be a smell of gasoline when the cold car starts, which is a normal phenomenon, and the result of insufficient combustion of gasoline. If the hot car is also like this, it means that the carbon deposit is relatively serious and needs to be repaired and removed.

The reason for the lack of cylinders is that some cylinders of the engine do not work, and the car does not burn and is discharged with the exhaust, so there is a gasoline smell, the car is boring and consumes fuel.

Check whether the ignition system is that the cylinder is not ignited, whether it is high-voltage electricity or spark plug, and it is OK to eliminate the fault.

1. The rubber pipeline of the carbon canister is aging

Some cars that are older or have run longer kilometers are prone to signs of aging when the rubber parts in the engine compartment are susceptible. The gasoline vapor that should have been channeled into the intake manifold leaked into the engine compartment and the air conditioning system became a way for the smell of gasoline to enter the car.

2. There is leakage in the gasoline pipe

If there is a leak in the gasoline pipe, then there is a possibility that the smell of gasoline can enter the car along the air conditioning system. Leaks typically occur at the interface between the pipes. When you open the engine compartment cover, you can generally see that if there is a leak at the interface, after a period of time, the surface will absorb dust and form sludge.

In addition, if you touch the pipeline interface, you will know if there is a leak.

Countermeasures: Tighten and repair interfaces.

3. There is residue when disassembling and assembling the gasoline pump

Disassembling and assembling the gasoline pump needs to be completed in the car, and it is inevitable that there will be some residues in this process, if it is not cleaned up, it is possible to smell gasoline in the process of using the car.

Generally, it will only involve the disassembly and assembly of the gasoline pump when it is replaced or when there is a related failure. The replacement cycle of the gasoline pump is about 100,000 kilometers, so there are not many opportunities for car owners to encounter such maintenance projects. However, now more car manufacturers have begun to install the gasoline filter element in the fuel tank and connect it to the gasoline pump, and the replacement cycle of the gasoline filter element is about 40,000 kilometers, so this process will involve the disassembly and assembly of the gasoline pump.