What may be the reason why the car door won't open?

Analysis of the reasons for the heavy smell of automobile gasoline: first, check whether the engine leaks oil; Or replace the spark plug and check whether the oil circuit leaks oil. Pay attention to high-pressure components, such as near the fuel injector. The simplest thing is to check whether the fuel tank cover is sealed badly first, and then check the carbon tank. Other oil tanks are empty, so it is easy to open the oil pump sealing ring because of high air pressure. If you're in the car,

What may be the reason why the car door won't open?

Cause analysis of strong smell of automobile gasoline;

The simplest thing is to check whether the fuel tank cover is sealed badly first, and then check the carbon tank. Other oil tanks are empty, so it is easy to open the oil pump sealing ring because of high air pressure.

If the car smells of gasoline, it is likely that the oil return pipe on the fuel tank or the joint between the oil pump and the oil pipe is loose or cracked. Because it is under the back seat (also under the trunk carpet), the leakage will cause the smell of gasoline in the car. In this case, please check and repair immediately to avoid serious consequences.

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

The reason for the lack of cylinders is that some cylinders of the engine don't work, the car doesn't burn, and it is discharged with exhaust gas, so it smells of gasoline, the car is stuffy and consumes oil.

Check whether the ignition system does not ignite the cylinder, high voltage or spark plug, and just troubleshoot it.

1. Rubber hose of carbon tank is aging.

Some cars with long car age or long mileage are prone to aging of rubber parts in the engine compartment. The rubber tube is used to connect the carbon canister and the throttle. Once aging, leakage may occur. The gasoline vapor that should have entered the intake manifold along the pipeline leaked to the engine compartment, and the air conditioning system also became a way for gasoline odor to enter the car.

Countermeasures: Replace related aging hoses.

2. There is a leak in the gasoline pipeline.

If the gasoline pipe does leak, the smell of gasoline may enter the car along the air conditioning system. Leakage usually occurs at the interface between pipes. When you open the engine compartment cover, you can generally see that if there is leakage at the interface, after a period of time, dust will be adsorbed on the surface to form sludge. In addition, touch the pipe joint and you will know that there is no water leakage.

Countermeasure: Fasten and repair the interface.

3. There are residues when disassembling the gasoline pump.

Dismantling the gasoline pump needs to be done in the car, and some residues will inevitably appear in the process. If you don't clean it, you may smell gasoline when you use the car.

Under normal circumstances, the disassembly and assembly of the gasoline pump will only be involved when the gasoline pump is replaced or related failures occur. The replacement cycle of gasoline pump is about 654.38 million kilometers, so there are not many opportunities for car owners to encounter such maintenance projects. However, at present, more and more automobile manufacturers begin to install gasoline filter elements in fuel tanks to connect gasoline pumps. The replacement cycle of gasoline engine oil filter is about 40 thousand kilometers. So this process will involve the disassembly and assembly of the gasoline pump.

Countermeasures: Go back to the repair shop to check whether the gasoline pump is installed correctly and whether the surrounding area needs further cleaning.

It was introduced into the car from the outside.

Although this situation is rare, it is not impossible.

Countermeasures: adjust the air circulation mode and open the skylight to exhaust.

Hurry up, it's too full.

Some riders have the habit of refueling, and they are satisfied with letting the oil gun jump a few times. Xiao I suggested that riders who have this habit should check the fuel filler first to see if there are any signs of oil leakage. If not, check the carbon canister, vent and other parts. If the gasoline is too full, it may enter the carbon canister along the pipeline. The carbon canister, which was originally used to collect gasoline vapor, will release excess gasoline vapor from the vent after invading gasoline. When the air is in the external circulation state, the smell of gasoline will enter the car.

What if the car suddenly smells gasoline?

1. Pull over immediately.

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

2. Get off to find the source of gasoline smell.

There are two steps:

First of all, through the preliminary identification of odor, the characteristics of odor can provide some basis. It is unlikely to catch fire if it is only the smell of gasoline, but if it is mixed with the pungent smell of rubber, there may be signs of fire. Really have to put out the fire and call the fire alarm.

If there is no other smell, please turn on the range hood for specific inspection. Pay attention to ensure personal safety at this time.

3. Make corresponding treatment according to the situation.

On the surface, in the use of central lock, the owner can only passively accept and adapt to the set of working logic set by the manufacturer, but as far as I know, in some brands, it does have hidden functions. There are many products with different positioning under the same brand. For some comprehensive reasons, engineers will plan and design these different types of functions, and the central locking is one of them.

The central locking control unit of some vehicles will store several control logics for unlocking/locking the vehicle, but in the end only some of them will serve us, including the one-time key unlocking mentioned above. We can choose the corresponding control logic by rewriting the code. That is to say, for those vehicles that cannot open the whole door with the second key, the function of opening the whole door with the one-time key can be realized by rewriting the code of the central locking control unit.

How to save yourself if the water inlet door of the vehicle cannot be opened?

The first time: the car just sank into the water and slowly pushed open the door. Usually, it is said on the internet that the door can't be opened after the car starts, because the water pressure inside is small and the water pressure outside is large. However, in the experiment, the door can be opened after there is water in the car, because the water pressure is very small when the water begins to flood the wheels. It takes half an hour to fill the car with water. When the water completely enters the car, the water pressure begins to increase and gradually submerges to the lower edge of the window, and the water pressure in the car reaches the maximum. At this time, you need to try your best to open the door.

In addition, when the car sinks into the water, the speed is relatively slow, which creates enough time for escape, which is completely different from the idea that the car falls into the water and is drowned due to collision. At this time, the people in the car still have a long time to escape, so calm down, unfasten the seat belt and open the door hard. The whole escape process took 1 minute and 29 seconds in the experiment.

Second time: the escape hammer can break the window without a hammer.

When the car entered the water for the second time, it tried to open the window with scissors, high heels, escape hammer and other tools, but in fact these tools could not break the glass in the water. In fact, it only takes a hammer of more than 20 yuan to break glass at once.

In addition, some people will ask, "If there is no hammer in the car, how can you break the glass to save yourself?" Actually, the car is going to hit something hard on the window. When trapped in the car, just pull out the seat headrest and aim two sharp steel plugs at the corner of the side window. At this time, the glass will be smashed, and you can successfully swim out of the window to escape.

The third time: the front windshield can hardly break in the water.

After the vehicle sinks into the water, you will find that no matter how hard you try and kick, the front windshield will not break, because it is made of laminated glass and is almost unbreakable in the water.

Solution to the problem that the car door can't be opened.

The main solutions to the door failure are as follows:

1. Check the burglar alarm for faults such as short circuit. 2. Check whether the child lock is opened.

In order to prevent children sitting in the back row from accidentally touching the door handle while driving, some cars have child locks at the back door. When the child lock is locked, the door can only be opened by the handle outside the car. Therefore, if the power supply is cut off when the door is locked, the door cannot be opened inside or outside the car.

If the car is washed in winter, the water is not dry, and the door is frozen, the temperature will return to normal.

After washing the car, the residual water accumulates in the handles, locks and gaps of the car. The cold at night froze the accumulated water, and the door could not be opened in the morning.

4. If the vehicle equipped with electronic lock is discharged, the lock can be opened after being electrified.

The central locking system used in some models can well avoid similar "tragedies". In the control logic of the system, when the door is opened, the door lock is not allowed to fall. Even after misoperation, it will automatically bounce up. Although this logic sounds "axial", it does work. Of course, this function is controlled by the circuit, so it will fail when the vehicle has no electricity.

5. If you use the remote control to open the door, please check whether the battery of the remote control is charged.

6. If the car is running, when the speed reaches about 10km/h, the central locking bolt of the door will automatically fall off, and the door will not be opened for safety reasons.

Each wheel has a sensor to monitor the wheel speed. This signal is an important basis for the control unit of vehicle stability system. It seems that all this has nothing to do with the central locking. In fact, through data transmission, within a certain speed range, the vehicle speed signal will be transmitted to the central locking control unit. When the vehicle speed reaches the locking condition, the central locking control unit sends this signal as a locking execution command to the central locking actuator.

Self-help solution to the problem that the door cannot be opened due to falling into the water.

First, when the car is flooded, push open the door.

Usually, it is said on the internet that the door can't be opened after the car starts, because the water pressure inside is small and the water pressure outside is large. However, in the experiment, the door can be opened after there is water in the car, because the water pressure is very small when the water begins to flood the wheels. It takes half an hour to fill the car with water. When the water completely enters the car, the water pressure begins to increase and gradually submerges to the lower edge of the window, and the water pressure in the car reaches the maximum. At this time, you need to try your best to open the door.

In addition, when the car sinks into the water, the speed is relatively slow, which creates enough time for escape, which is completely different from the idea that the car falls into the water and is drowned due to collision. At this time, the people in the car still have a long time to escape, so calm down, unfasten the seat belt and open the door hard. The whole escape process took 1 minute and 29 seconds in the experiment.

Second: you can break the window.

When the car entered the water for the second time, it tried to open the window with scissors, high heels, escape hammer and other tools, but in fact these tools could not break the glass in the water. In fact, it only takes a hammer of more than 20 yuan to break glass at once.

In addition, some people will ask, "If there is no hammer in the car, how can you break the glass to save yourself?" Actually, the car is going to hit something hard on the window. When trapped in the car, just pull out the seat headrest and aim two sharp steel plugs at the corner of the side window. At this time, the glass will be smashed, and you can successfully swim out of the window to escape.

Third: the front windshield cannot be broken.

After the vehicle is submerged in the water, you will find that no matter how hard you try and kick, the front windshield will not break, because the front windshield is laminated glass and hardly breaks in the water, so the best way is to start from the next window.

What may be the reason why the door won't open @20 19