The car can t catch fire when the temperature is low, and the car can t catch fire when the weather

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The factors that affect the start of the engine are: air intake system, oil supply system, ignition system, lubrication system, etc.

Air intake system: When the weather turns cold, after the fuel is injected into the intake pipe, the atomization effect is not good, if there is carbon deposit in the engine intake system at this time, and part of the fuel in the mixture is adsorbed, which will cause the mixture to be not easy to ignite in the cylinder. Then at this time, we can consider cleaning the engine intake tract and throttle.

Fuel supply system: it is not easy to establish oil pressure in the engine fuel supply pipe, this situation mostly occurs in the morning when the temperature is particularly low, due to the dirty fuel pipeline or nozzle, when the temperature is particularly low, the water and the debris in the fuel are mixed so that the fuel pipeline is not smooth, and the result is not easy to start or can not start. The solution is to use the method of cleaning the oil circuit to completely solve the ignition fault.

Ignition system: when the weather is cold, if the ignition ability is too weak, it is difficult to ignite the mixture with poor atomization effect, at this time we must consider checking whether the spark plug aging gap is too large, whether the ignition coil is aging In addition, when the weather is cold, the capacity of the battery will also become low, we can judge whether the battery is lost power through lights, horns and other electrical equipment.

Lubrication system: At low temperatures, the viscosity of the engine oil will increase, the flow of oil will become difficult, and the resistance of the engine will also increase, and the car will naturally be difficult to ignore. Therefore, it is more appropriate for us to use a lower viscosity oil in winter.

Generally, the cold weather does not catch fire is common for the above reasons, especially remind the majority of car owners: if there are difficulties in the system, each start time should not last too long, it is best to control within 5 seconds, if the start 3 times or not ignited, then you need to stop for half a minute to avoid damage to the battery, or lead to excessive fuel accumulation in the cylinder.

Cold weather is related to the ignition of the car, which will affect the ignition. If the cylinder is too cold and the spark plug is too cold to produce **, it will not catch fire.

1) If the car doesn't catch fire in the morning, try to refuel the car while twisting the key. Some cars can't keep up with the gas when they are ignition, which will cause them to fail to ignite. Therefore, when twisting the key, you should step on the accelerator continuously, and pay attention to loosen the accelerator when the vehicle shakes and is about to start, so as to avoid slamming the accelerator and damaging the vehicle.

2) Some cars have been used for a long time, and it is not easy to ignite in the case of very low temperatures in winter, if the battery has electricity, you can pull the car away from the wind, and then add the throttle to ignite it.

Car Maintenance: 1...Engine maintenance.

When parking, we must pay attention to pulling the handbrake, put the handbrake in place before driving in the start of the car, if you can't put it in place, the engine will make a louder noise, the loss of the engine is relatively large, so you should pay great attention to the use of the handbrake.

2.Keep an eye on the sound of the vehicle while driving.

If the car makes a continuous noise, it should be stopped in time for inspection, and if it continues to sound after stopping, it may be that there is a problem with the engine. It is necessary to check whether it is due to the quality of the engine oil that affects the working effect of the car's hydraulic and lubrication system. Therefore, it is recommended to change the original engine oil according to the road conditions and the vehicle's own condition after the run-in period of the new car.

3.Check the oil and water condition frequently.

It is a good idea for car owners to make it a habit to check the oil and water in the cabin once a week to see if there is enough oil and water and if there are any leaks. If the oil and water drop is not large, it is a normal loss and there is no need to worry too much.

4.Check and replace the brake pads in a timely manner.

Car owners who are accustomed to slamming on the accelerator and emergency brakes usually have serious wear and tear on the brake pads of their cars, and their life is relatively short. The braking system is one of the most important components of the car, and it is very easy to cause accidents once there is a problem with the braking system and it is not solved in time. Therefore, it is necessary to regularly check the wear and tear of the four brake discs of your car, and replace them in time when grooves are found.

1.(1) Battery problem: Cold weather will reduce the energy of the car battery. Because the electrolyte in the battery will undergo a chemical reaction, and the operating temperature of the battery is generally between -10 degrees and 50 degrees.

If the temperature is too low, the activity of the chemical components decreases, the reaction rate slows down, and the energy produced decreases. In addition, at low temperatures, the viscosity of the electrolyte increases, and the resistance increases, which reduces the electrical output power. At this point, it is difficult for the starter to drag the engine.

At the same time, as the voltage at both ends decreases, the ignition of the spark plug also weakens. 2) Oil and gasoline problemsWhen the viscosity of the lubricating oil increases at low temperatures, it means that the fluidity of the oil becomes poor. Lubricating oil is meant to help the engine run, but this situation prevents the crankshaft from reaching the speed required for starting, making it difficult for the engine to start with resistance.

Gasoline suffers the same thing. When the engine is low, heat absorption will affect the temperature of the mixture, causing most of the fuel to enter the cylinder in a liquid state, causing the mixture to be too thin and difficult to start. 2.

It is difficult to ignite the car itself, and this situation is that it is difficult for the car to ignite under normal temperature conditions, and the temperature reduction increases the difficulty of ignition. On the one hand, there is the issue of car maintenance. Owners can recall whether their cars have been regularly inspected and maintained.

For example, the throttle valve controls the entry of gas in the intake pipe, which is then mixed with gasoline to become a combustible mixture. Gas combustion gives power to the engine. If the throttle is clogged with sludge, it will be difficult for the car to start without fresh air.

In addition, if the combustion system is not clean, the fuel will be adsorbed by carbon deposits, resulting in insufficient gasoline combustion to provide power. On the other hand, there is the ignition system failure. The main reason is the failure of the ignition coil, spark plug, high-voltage wire, ignition controller, etc.

Severe ablation, deposits, damage to the wiring or non-compliance with the requirements of the vehicle can prevent the car from catching fire.

Be.

1. The battery is out of power: due to the low temperature in winter, the charging and discharging performance of the battery will be greatly affected, and the voltage of the car battery will be low in winter, so you need to pay attention to it at ordinary times.

2. The throttle is frozen: When the throttle is frozen, the combustible mixture cannot enter the engine, which will naturally cause the vehicle to fail to start.

3. The body temperature of the engine is too low: this situation generally appears on diesel vehicles, because the working principle of diesel vehicles is compression ignition, the diesel may not be able to be burned well when the body is low, resulting in difficulty in starting.

Precautions for car ignition.

Warm up the car for 1-3 minutes after ignition. In winter, when the temperature is cold, the car is heated for 3-5 minutes after ignition, and it is best to let the cool car idle speed to normal idle speed before driving. In the case of a turbocharged car, the warm-up time is 1-2 minutes longer than that of a naturally aspirated car.

If it is a vehicle with a key to start, do not step on the brake when ignition, after pressing the start button, it is equivalent to the key screwed to the ON position, and then wait a few seconds, and then press the brake to start the vehicle.

The above content refers to People's Daily Online-What to do if you can't catch fire in cold weather Experts recommend checking the spark plug first.

It has to do with the fact that car batteries can become particularly fragile at low temperatures.

Car batteries become particularly fragile in low temperatures, not only in cars, but also in mobile phones and electric vehicles, and cold weather shortens their battery life.

Especially when the weather is cold, the owner should pay special attention to the use of the car battery, be diligent in inspection and maintenance, and with the change of driving habits, there are more and more electrical equipment on the car, and the pressure on the car battery is getting bigger and bigger, if there is no careful inspection and maintenance, the car battery is easy to fail.

1. The exhaust cylinder of the car is frozen. 2. The power consumption of electrical appliances is too serious. 3. Vehicle carbon deposit. 4. The cylinder pressure is too low.

When the car does not catch fire, it may be due to the cold weather, depending on whether you are in the north, or whether you want to let the car start for a while.

The most important problem is the battery, the battery time is used for too long, the storage capacity is reduced, followed by the cold weather, the engine starting time is extended, and the oiling becomes slower.

Do not turn off the engine and use electricity, the battery efficiency is lower in winter, there will be excess fuel in the cylinder after the start failure, step on the accelerator and start the high speed pull can be, the fault code is because the excessive fuel combustion is not exhaustible before the oxygen sensor alarm, clear the fault code, and do not need to be repaired.

1. Check the status of the battery.

In most cases, the difficulty of starting the car in winter is caused by the loss of battery power or the expiration of the battery life. When the battery is low, the speed is weak when starting the car, and only the clicking sound is heard, and the clicking sound will gradually become a clicking sound when the ignition is lit again. Do not ignite continuously to avoid the battery running out.

2. Change the appropriate engine oil.

In winter, as the temperature drops, the viscosity of the oil increases, making it difficult for the oil to flow, which increases the resistance of the engine. If it is difficult to start, check whether the oil label is incorrect.

3. Replace the spark plug in time.

After a few years of use, spark plugs are prone to cause problems such as carbon deposition, leakage, excessive clearance, and ablation, which will cause difficulties in car ignition, cold start, and even hot engine start, and often need to be ignited multiple times. Therefore, when driving to a certain number of kilometers or feeling that the vehicle is difficult to start, weak, shaking, increasing fuel consumption, or inexplicably stalling, please check the spark plug status and replace it in time.

1. Change the oil

In winter, due to the low temperature, the oil is affected by low temperature, and the viscosity becomes larger and the fluidity is poorer. As a result, the resistance of the engine also increases, and it is difficult for the engine to ignite. At this time, you can move the car to a warmer environment to restore the fluidity of the oil.

It is also possible to change to a higher quality engine oil, which can withstand low temperatures.

2. Replace the antifreeze

Antifreeze cools the engine and prevents freezing in winter. However, at low temperatures, if the quality of the antifreeze is not good enough, or if it is mixed with water, it will be frozen, resulting in the car not catching fire. The correct thing to do is to replace it with a better quality antifreeze.

3. Replenish the power of the battery

The low temperature in winter will affect the charging performance of the battery, and the power consumption of the battery is relatively fast, and the car is easy to fail to catch fire if the power is insufficient. It can be used with other cars to replenish the power of the battery in time.

4. Replace the spark plug

When the engine fails to ignite, or when performance is degraded, it is most likely that there is a problem with the spark plug. Spark plugs can be replaced with new ones.

5. Pay attention to daily maintenance

The car can't catch fire when the temperature is low, mainly because the usual maintenance is not in place, so pay more attention to the maintenance of the vehicle at ordinary times, and go to the 4S shop on time to check all parts of the car, so that the car has been in the best condition, so that when it is cold, the car can start smoothly.

The main thing is to see that the engine is not oiled, and it is recommended to change the oil to a higher grade, which has an old way of heating the oil pan of the engine.

Change the oil to a lighter one and check that the spark plug is not flooded.

The reason why the car can't catch fire at low temperature is that the engine is aging and the battery is out of power.

The solution is to heat up the engine by physical methods and replace the battery with a new one.

The solution to the low temperature and the car not catching fire is as follows:

1. The most direct impact of insufficient battery power on family cars in winter is the battery. At low temperatures, the electricity consumption of the car will be significantly higher than in other seasons. The capacitance of the battery will also be reduced due to the low temperature environment.

Batteries that have been used for a long time will have a low initial starting voltage. If dirty oil adheres to the surface of the battery, the voltage output of Vichai fiber will be unstable, resulting in the shaking of the body. Timely replacement of new batteries or replenishment of batteries can effectively avoid this situation;

2. When the throttle starts with carbon deposition, the fuel is too thin, the oil supply is poor, and the fuel will wet the spark plug, which cannot be started normally, which means that this is due to the liquid state flowing into the cylinder, resulting in depression in the upper part of the cylinder piston, when the piston runs up and down, the fuel is splashed on the electrode of the spark plug, so that it cannot work normally, and the start fails; If the above situation occurs, it means that your car needs to be thoroughly maintained, and the carbon deposits in the intake tract, throttle and cylinder have been removed;

3. Exhaust pipe freezing or valve carbon deposition will also make it difficult to start the engine, the exhaust pipe freezing is mainly due to the low frequency of car use in winter, the water vapor generated after engine combustion freezes in a certain part of the exhaust pipe, and the short-distance driving can not melt these ice, and a long time will have an impact on the start and exhaust of the car. Use hot water to dispense.

1. The spark plug should be checked first. Because the spark plug is the key to the ignition system of the car, and the ignition system is the key point of the engine work, the performance of the spark plug is related to the working performance and efficiency of the whole vehicle.

2. The battery loses power - its performance is characterized by the starter starting to rotate but the speed is not enough, that is, it is weak, and then the starter only clicks and does not turn. Low temperature in winter and forgetting to turn off individual electrical equipment will cause the vehicle to be unable to start, especially in winter for long-term short-distance low-speed use, the battery voltage will be lower than the rated value, starting and unable to operate normally. If it happens, please call the service station for rescue**, or find the right car, or temporarily on fire, and then you must go to the service station to replenish the battery.

3. The flow of gasoline is blocked - the performance is characterized by no oil pressure in the engine oil supply pipe. This situation usually occurs in the morning when the temperature is very low, and is caused by long-term dirt in the fuel line. When the temperature is very low, the water mixes with debris and the fuel line is blocked, and as a result, it cannot be started.

Emergency method: Put the car in a warm environment, and the car can start after a while; Or use the method of cleaning the oil circuit to solve it completely.