What is the reason for the smell of gasoline when the heater is on?

Generally, the smell of gasoline is mostly a problem with the carbon canister, the carbon particles in it are saturated or fail, so that the fuel vapor in the tank leads to the atmosphere.

Then it is sucked into the cab by the fan, and the canister has to be replaced.

There are also many people who pull out the engine snorkel because it always discharges oily water to the outside, so that it can smell similar to gasoline.

If there is a smell in the outer circulation, it is possible that the smell from the outside or the smoke exhaust pipe is sucked in, if the internal circulation is opened, it may be that the external circulation is not closed strictly, if only the internal circulation is opened, there should be no gasoline smell, otherwise you should go to the repair shop to check; Generally speaking, if you open the external circulation, if you start driving, there should be no smell of gasoline, and if there is, you should also check it carefully, which is not a small problem.

The smell of gasoline in the car needs to focus on checking the oil pipe joints, injector seals and carbon tube solenoid valves, first check whether the joints of the fuel distribution pipe have signs of oil printing, if the joints find oil stains, it is recommended that you replace a clamp, it may be that the clamp has lost its effect so it has led to the joint oil printing. Secondly, there is a seal on each injector, which may be a poor seal for vehicles that are more aged. Then there is the failure of the carbon tube solenoid valve or carbon tube, the solenoid valve works poorly or the carbon canister is too long to use will cause gasoline smell in the car, focusing on these three aspects.

These accessories are very cheap in the auto parts city, the fuel injector seal is dozens of yuan, and the solenoid valve and carbon canister will not exceed 200 yuan.

Note: Allow the water temperature to rise before turning on the heater.

When preparing to turn on the warm air, don't turn it on first if the water temperature does not rise, otherwise it will just blow cold air. If you use a compressor, it is not cost-effective.

The first time you use a heater, open the window for ventilation.

If it is the first time to use the heater in the change of seasons, when the heater is turned on, do not close the windows, you should open the windows a little, so that the dust and other smells blown by the warm air run out of the car, otherwise it is not good for human health.

Use external circulation as much as possible to turn on the heater.

When using heaters, many people feel that the inner circulation car is warmer, in fact, this is not good, when the internal circulation, the air in the car is not circulated, once there is a car exhaust into the car will be harmful to the human body.

Turn off the compressor before turning on the heater.

In order to avoid using the air conditioner with the heater on, the compressor should be turned off to ensure that the hot air in the tank is used. In this way, there is basically no oil burning.

Replace the carbon canister, and the same will happen if the fuel injector leaks.

Generally, the smell of steam and oil is mostly the problem of carbon canister making, the carbon particles in it are saturated or invalid, so that the fuel vapor in the tank back to the atmosphere, and then sucked into the cab by the fan, which is the need to change the carbon canister.

The heat source comes from the engine coolant, and the water heating system is mostly used in cars, large trucks and buses with low heating requirements. The plumbing heating system is mainly composed of a heater, a hot water regulating valve, a blower, a control panel, etc.

The blower consists of a DC motor with adjustable speed and a squirrel cage fan, which blows cold air to the heater, which is heated and fed into the vehicle. Adjusting the speed of the motor can adjust the air supply volume to the cabin.

If there is a smell in the external circulation, it is possible that the smell from the outside or the smoke exhaust pipe is inhaled

If the inner circulation is opened, it is possible that the outer circulation is not closed strictly, and if only the internal circulation is opened, there should be no gasoline smell, otherwise you should go to the repair shop to check; Generally speaking, if you open the external circulation, if you start driving, there should be no smell of gasoline, and if there is, you should also check it carefully, which is not a small problem.

Check to see if there is a tubing leak.

Check if the canister needs to be replaced.

The car heater has a white gasoline smell, which may be external

Motive leakage, air conditioning filter, air conditioning duct dao mold, the version is specifically introduced as follows:

1. The external engine has the right to exhaust gas leakage and foreign matter at the air inlet, resulting in an unpleasant odor from the air inlet of the air conditioner.

2. The air conditioner filter is too dirty, and regular cleaning and inspection can completely eliminate the occurrence of odor.

3. Caused by mold in the air-conditioning pipes and evaporators, this kind of maintenance is also more troublesome and the maintenance cost is relatively high. The first two cases are relatively simple and relatively easy to detect.

Notes:

1. The fuel supply system of the car is a closed system, and there is generally no gasoline vapor escape. But there is a part of the area from which gasoline vapor escapes if it malfunctions or we use it improperly, causing the smell of gasoline in the engine compartment.

2. If the gasoline is overfilled, the snorkel is also filled with liquid gasoline, and even the carbon canister is also filled with gasoline, in this case, the carbon canister will not work properly, and the gasoline will escape into the engine compartment.

3. After the owner stops the car, the car air conditioner can be adjusted to the highest temperature state 32, and the warm air can dry the moisture of the air conditioner evaporator and air conditioning pipe.

What to do if there is a peculiar smell when the car air conditioner is turned on, a few small methods can be easily removed, practical.

The smell of gasoline is mostly caused by the problem of the carbon canister, and the carbon particles in it are saturated or invalid, so it is recommended that the user replace the carbon canister.

The requirements for the fuel used in the heater and the fuel used in the car are basically the same, and the label for the diesel fuel used is also the same. No. 10 diesel should be used within minus 10 degrees, and No. 20 diesel should be used at minus ten degrees, to ensure that the diesel does not crystallize, and normal atomization can be. Generally, after the crystallization of diesel diesel, there will be a situation where it cannot be ignited.

In this case, don't worry, just heat the heater immediately, crystallize and you'll be fine.

The diesel engine automatically stalls, indicating that some kind of fault has occurred. The operator should make a judgment based on the signs that appear before the extinguishment, find out the cause, and eliminate it in a targeted manner. 1.

Unstable speed before turning off First check whether the fuel is used up, if there is no shortage of fuel, you can shake the car to check, if there is no fuel injection sound, there may be air into the fuel system. Although it can be started after the air is discharged, but the speed is unstable again and the load is turned off, the original ring of the air inlet may be blocked by the oil circuit, which should be identified and eliminated. 2.

If there is no abnormal phenomenon, the ignition will be suddenly turned off and the injector should be checked to see if the injector is injecting fuel or whether the oil pump is supplying oil. The reasons for the sudden failure of the fuel injection pump are: the plug spring is broken, and the plunger is stuck by impurities.

The reasons why the injector suddenly does not inject fuel are: the pressure regulating spring is broken, and the needle is stuck. Find out the cause and rule it out.

3.White smoke comes out of the exhaust pipe before the ignition is turned off, and the speed is unstable Check whether there is water in the diesel oil. If the exhaust pipe still emits white smoke and stalls after the water is cleaned, the cylinder gasket may be burned and the cylinder gasket should be inspected.

4.Before the engine is turned off, the engine suddenly loses energy, the operation is intermittent and unstable, and it is accompanied by a slight knocking sound The valve is mostly caused by the valve lock or circlip falling off, the valve stem is broken or the valve spring is broken, resulting in the valve falling off. It should be checked and replaced with new parts in time, otherwise the valve will fall into the cylinder, which will cause a major accident.

5.Before the flameout, the diesel engine is becoming more and more difficult, and the exhaust pipe emits black smoke 1. This phenomenon is mostly caused by lack of oil, water entering the oil pan or insufficient oil pressure.

Don't know if you're using a direct-fired diesel heater or an intermittent diesel heater? Direct-fired diesel heater at work heatingThere will be a little bit of oil smell, which requires ventilation, and the room must have a certain degree of air exchange, so that the fuel can be fully combusted, so that the oil smell is basically gone. Direct combustion heaters cannot be used in sealed structures unless doors and windows can be opened for air exchange.

Not ignition, fan turning, fuel injection is what's going on.

When the car engine is running, it produces various exhaust gases, including some toxic and harmful gases. The heating system in the car usually uses the heat emitted by the engine to heat the air inside the car, which means that the heating system and the engine are interconnected. If you smell gasoline when you turn on the heater, it could mean that there are one or more of the following problems:

Fuel leaks: You may want to check your engine and fuel system for stalker leaks. Fuel leaks can create a strong smell that can cause damage to the vehicle if not cleaned up in a timely manner, and can also pose a risk of starting a fire.

Fuel Injector Issues: Fuel injectors are a critical component that injects fuel into the combustion chamber of an engine. If they fail, it can cause fuel to enter the heater system.

Fuel Pump Problem: A fuel pump is a device that feeds fuel from the fuel tank into the engine. If the fuel pump is damaged or malfunctions, it can also cause fuel to enter the heating system.

If you smell gasoline, it is recommended that you stop the car immediately and check and fix the problem as soon as possible. This will not only ensure your driving safety, but also avoid greater damage to your vehicle as a result.

The reasons for the smell of gasoline when turning on the heater are: the carbon particles in the charcoal canister stove are saturated or failing, there is an exhaust gas leak from the external engine, the air conditioning filter is too dirty, and the air conditioning ducts and evaporator mold. The details are as follows:

The carbon particles in the canister saturate or fail: the fuel vapor in the tank is sent to the atmosphere, where it is sucked back into the cab. There is an exhaust gas leak from the external engine:

If there is a foreign object at the air inlet, it will cause an unpleasant odor from the air inlet of the air conditioner, and the heater should be used as much as possible to use external circulation. The air conditioner filter is too dirty: The car air conditioner filter should also be cleaned regularly to filter out harmful gases through the air conditioner filter.

Mold in air conditioning ducts and evaporators: This kind of repair is also more troublesome and more expensive to repair. Precautions for turning on the heater:

Do not leave the heater on all the time while sleeping in the car, as this can easily cause carbon monoxide poisoning; After turning on the heating, the interior of the car is a confined space, which brings a good environment for bacteria to breed and spread, so it is best to open the windows ajar to allow some air circulation, which can prevent dryness in the car and also improve the air quality in the car.

The reasons for the smell of gasoline when turning on the heater are: saturation of carbon particles in the canister or loss of high resistance to sleepiness, exhaust gas leakage from the external engine, dirty air conditioning filter, air conditioning ducts and evaporator mold. The details are as follows:

Carbon saturation or failure in the tank: Fuel vapors from the tank are vented into the atmosphere and then sucked into the cab. Exhaust gas leakage from the outside of the engine

A foreign body at the air inlet causes an unpleasant odor to enter the empty air intake. Turn on the warm air and try to use external circulation. The air filter is too dirty:

The empty filter element of the car should also be cleaned regularly, and the harmful gases can be filtered out through the air filter element. Moldy in empty pipes and evaporators: This kind of maintenance is also more troublesome than Qi Nian, and the maintenance cost is relatively high.

Precautions for turning on the heater: You can't turn on the heater all the time when sleeping in the car, because it is easy to cause carbon monoxide poisoning; When the heating is turned on, the interior of the car is a closed and empty room, which creates a good environment for the growth and spread of bacteria. So it's best to open the window halfway to allow some air to circulate.

Doing so prevents the interior of the car from drying out and improves the air quality inside the car.