The car is cold, and the car needs to be hot

Yes, generally speaking, cold start refers to starting the engine at close to the ambient temperature after a long period of shutdown. This is also the so-called "hot car", and the process of "hot car" after the cold car starts is actually the process of waiting for the speed to come down, because the moment of cold start, the speed must be very high, with the slow decline of the speed, the car is also slowly "hot" up, so that it is correct to drive, in fact, about 30 seconds after the car starts, the normal parameter signals of the sensors of the various parts of the engine can be collected and completed, so as to reflect the normal working state environment in the control module, so that the control of fuel injection is more accurate.

Therefore, it is necessary to wait for the speed to drop under the cold start, and also wait for all parts of the engine to reach a good state, if it is in summer, you can refer to the tachometer, and in winter, you can refer to the water temperature, and when the speed is down, the water temperature has just begun to rise.

There's no need to heat up the car in situ. After starting, at most wait for the work of wearing a seat belt to start. At first, drive slowly, don't speed up, and when the water temperature rises, you can open normally. This warms up the car faster and wears less.

It is to let the oil go through the complete process; If you have a turbo at any time, you have to warm up the car at any time, and if you don't have a turbo, as long as you warm it up a little, the engine sound will be stable and then you can turn the gear, and you have to wait for the engine speed to drop to about 1200.

Of course, a hot car helps the oil protect the engine; There is no problem with the occasional car that does not heat up, but the long-term wear and tear on the engine will be great.

A hot car is the basic maintenance of the car, at least wait until the cold car has dropped down at high idle!

There's no need to heat up the car in situ. After starting, at most wait for the work of wearing a seat belt to start. At first, drive slowly, don't speed up, and when the water temperature rises, you can open normally. This warms up the car faster and wears less.

Of course, the car needs to be warmed, and if the engine temperature of the car is not hot, it will cause cold wear.

There is no need to warm up the car, because it starts directly when it starts cold, so we don't need to warm up the car anymore.

The car needs to be warmed up, so that the life of the car can be longer, so the hot car is the protection of the car and should not be started directly.

The car needs to be warmed, and this is also a kind of protection for the car, which can also extend the service life of the car.

Cars need to be warmed up in cold weather, but they should be warmed up in the right way and not idling, which is very harmful.

The correct way to warm up the car: 30 seconds to 1 minute after the development of motivation. However, don't run at high speed at this time.

The speed should be kept at a low speed, and the speed of 10 million revolutions should not exceed 3000 to 3500 rpm. Generally, only 2000 rpm is required, otherwise the engine and gearbox will be severely worn. At this time, as long as the engine temperature rises to normal temperature, you can resume normal driving again, and you can get in the car and go wherever you want.

In fact, it is not advisable for many people to choose to heat the car on the spot after the imitation bad car is started. Some drivers are accustomed to waiting for the water level in the morning before starting slowly. In fact, compared to this situation, it is also a fatal mistake.

For Yan geothermal cars, it is also easy to generate engine carbon deposits, which is a waste of gasoline. Today's automobiles use EFI systems, and the engine can reach a steady speed in a short period of time.

The influence of temperature on the outside world is also very small, so the traditional method of in-situ hot car really can't go, and it is also more particular about hot cars in winter. The time must not be too long, just like the old driver's ** is five minutes, which not only wastes oil, but also easily leads to an increase in carbon deposits.

Millions of car purchase subsidies.

If you look closely, you will find that many cars smoke from the exhaust pipe on the road but do not start, and these cars will be idle for a period of time to restart when they start, it is because many old drivers have a deep-rooted concept that when the cold car starts, the car should be warmed. In the starting state without preheating, some parts are not splashed with oil, and the degree of wear at this time will be much greater than the normal value, so starting the car directly will increase the wear during this time, so try to avoid dust and start the car directly can play a role in protecting the engine.

<> factually, it was the hot car that injured the car. Many people use the current car with the concept of the carburetor era. Doesn't it hurt the car?

Idle hot envy cars will increase the accumulation of carbon, but it will also increase the wear and tear of the Zenga engine, basically the manuals of major car brands make it clear that the original geothermal car is not needed, some old drivers insist on their own opinions, isn't the car engineer better than you? For manual transmission models, check whether the gear has been placed in neutral before starting, so as to avoid damage to the starting motor or movement with the gear.

Before starting, turn off the lights, stereos, air conditioners and other large electrical appliances on the car as much as possible to ensure that the electric energy of the battery is completely output to the starter. This is not only to protect the battery, but also to make the starter easier to work with. Lubricating oil is not as lubricating as lubricating bicycle chains.

Today's cars are all electric oil pumps, as long as there is electricity, oil pressure can be built, there is no need to idle hot cars.

Do a detailed explanation of the problem for a detailed interpretation of the problem, I hope it will help you, if you have any questions, you can leave me a message in the comment area, you can comment with me a lot, if there is something wrong, you can also interact with me more, if you like the author, you can also follow me, your like is the biggest help to me, thank you. That's all for sharing, if you like me, please follow me. If you guys have any ideas, you can let us know in the comments below.

I don't think it's needed, because in the process of heating the car, the gasoline will be burned inadequately and the carbon deposits produced by the reeds will increase, thereby increasing fuel consumption and making the engine less powerful, and if it goes directly after the cold start, it will allow the engine to quickly reach the temperature at which it works, reduce the generation of carbon deposits, and reduce the loss of the engine.

It must be that the tomb needs to leak the rental stool to warm up the car in advance, and then go after the car is hot, so that it is not easy to waste fuel, and it will also make us more comfortable when driving. There won't be any missteps or anything like that. Return to the tour.

If the car does not need to be warmed up when it starts in the summer, it is best to warm up for 1 to 3 minutes in the winter.

You definitely need to warm up the car, there is nothing to argue, of course, don't wait for the water temperature to be normal, it is not necessary to wait too long, just wait until the engine starts at the moment the high revs drop, and it does not have to wait until 700 to 800 rpm. Don't talk about too many truths, don't say much about very simple truths, don't listen to those so-called gods fooling, you don't need to warm up the car in winter, you can try it, some cars can't even add oil, dry step on the accelerator and don't go to the car, okay, just say this.

As an engine person, I will tell you that you need a hot car in winter, and you need it in summer. It can be warmed up for 30 seconds to 1 minute in winter and more than 10 seconds in summer. Take a look at the analysis below.

Because after the car is left for a while, all the oil is in the oil pan, you need to start the engine, let the oil pan slowly circulate to lubricate the mechanical parts, the temperature is lower in winter, the oil is more viscous, so the time is a few seconds longer than in summer. Without lubrication, machinery is easy to break down, and old drivers know it.

It's still good to heat it for a few minutes.

In most people's minds, hot cars in winter are to use the car early in the morning, start the car at idle speed to heat the car in situ, and wait for three to five minutes before hitting the road. But in fact, this method is not suitable, this approach will lead to the grinding of the engine parts of the pure base blind, damage to the car, so the correct hot car short is very important.

Cold driving may not cause serious problems in the short term, but in the long term, the engine will "lose its life". The main reason for a hot car is that after the car has been parked overnight, the oil in the engine flows back into the lower oil pan of the engine. Therefore, when the engine is started in the morning, the upper part of the engine is in a state of no oil and lack of smooth air.

It takes about 30 seconds after the start of the oil pump to deliver the oil to the pistons, connecting rods and crankshafts that need the most lubrication of the engine.

Although it is necessary to warm up the car, it is not advisable to idle the car in place. The reason is that the gear oil flows to the lower half of the gearbox when the car is cold, and the solution is not something that can be solved by heating the car in situ. Because the gearbox does not have a gear oil pump, only the engine is moving, and the rest of the car is not moving, and only after the actual road is actually driven for a period of time can this situation be improved.

Need. In the past, it was all carburetors, and in winter and summer, you had to pull the damper and get on the car. Now it's all computer EFI, but it's still hot for a minute in winter, so that the idle speed is stable before walking, especially the supercharged ones.

<> "It's getting colder, do cars need to be warmed?"

Buying a car is not a simple matter, in addition to the car is expensive, you also need to bear a lot of costs after buying a car, the usual parking fees, car wash fees, fuel costs, etc., the car as a high consumable, but also need regular maintenance.

It's getting colder, but it's not really cold yet, so there's no need to warm up the car in the morning, is that really the case? Some car owners feel that the current car technology is very advanced, even in the cold winter there is no need to heat the car, this will only increase fuel consumption, and even let the engine produce carbon deposits, for the cold and hot car problem, there is always their own rhetoric.

The purpose of the car in-situ heating car is to make the engine of the vehicle reach the working temperature, so that the oil inside the engine is lubricated to every part. Because the lubricating oil is at the bottom of the oil shell, it takes dozens of seconds to make the oil lubricate, if the car is not hot, the car will be driven away directly, and some parts of the engine will not be sufficiently lubricated, which will increase the friction between the parts, so the old driver said that if you do this for a long time, young man, you are destroying the car with your own hands.

Many car owners do not understand what is the engine cylinder, once the consequences of the cylinder are very serious, the cylinder is the engine piston or piston ring to pull out the cylinder working surface traces, it is a serious fault of the engine, the main reasons for the cylinder are:

1. The engine has been overloaded for a long time, resulting in high cylinder temperature;

2. The size of the piston or piston ring and the cylinder is improper, such as the gap is too small, etc.;

3. Damage and deformation due to inferior material of piston or piston ring;

4. Due to the poor circulation of the cooling system and the lack of lubricating oil, the cylinder is deformed due to the high temperature of the car.

Many car owners hear the serious consequences of not heating the car, so they plan to heat up for a few minutes, in fact, this is also a wrong behavior, the hot car is not the longer the better, as long as the engine can reach a stable and normal idle speed can be driven, some of the use of advanced engine technology EFI vehicles, precision computer to make the fuel injector accurate, as long as a short time after starting, the speed of the machine can be stable and reach the specified idle value, so the hot time of the EFI car does not need to be too long.

When we start the car and bury the car, it only takes about 15 seconds to drive the vehicle slowly, which is also equivalent to the hot car, and it will not delay time.

When the weather turns cold, it seems that some cars are not easy to start when they are cold, but when the water temperature of the car engine rises, it will be fine to heat the car for a while. This is a very argumentative situation that many car owners often encounter in the winter. There are many reasons for this, but it is also easy to fix.

Reasons:1The car battery may be damaged.

2.The throttle is dirty and the air intake is insufficient.

3.The speed of the starter is not up to the requirements.

4.Ignition system The power supply voltage is unstable.

5.The cylinder stove of the engine has insufficient compression pressure per acre.

Solution:1If it is the cause of car battery damage, it needs to be detected with professional tools and not powered off.

2.The oil-gas mixing ratio is abnormal. If our car can ignite but can't start Tanxiang, it may be caused by dirty valves, just clean it.

3.It is recommended to change the oil in winter, maintain the battery and starter, and ensure that the engine has a good speed when starting.

4.Ignition system The power supply voltage is unstable. Just increase the throttle.

5.Insufficient cylinder pressure. It is recommended that you tidy up the valve. If there is any phenomenon such as burning oil or piston ring wear, it is also recommended to repair it once.

When the weather turns cold, does it feel that the cold car is not easy to start, but when the water temperature of the vehicle engine rises, that is, after the car is warmed, it will be fine. I believe that many car owners have this experience, and they can't figure out what the problem is. Next, let's take a look at how to troubleshoot the difficulty of cold starting.

First of all, the reasons for the failure of cold start are cold start injector non-injection, coolant temperature sensor failure, air intake sensor failure, injector atomization failure, carbon deposition in the intake pipe, insufficient ignition energy, spark plug failure, idle control valve failure, etc. There are so many faults, and it is difficult to introduce them in detail, so we have selected the most common ones.

The oil quality is poor, and the volatility of inferior fuel is very poor, especially in winter, when the temperature is low, when the cold car starts, the engine block temperature is low, and the fuel is difficult to atomize, resulting in the fuel injected into the cylinder can not be fully mixed with the air, resulting in difficulty in starting, or even not starting.

Excessive carbon deposition in the valves and intake ducts makes it difficult to start the car cold, and the ECU judgment is wrong because the carbon deposition can absorb the appropriate amount of fuel. The computer actually controls the injection of hypothetical 100 parts of oil and gas, but only 90 parts actually enter the cylinder (10 parts are absorbed by carbon deposits), so even if the remaining 90 parts of the mixed oil and gas are fully combusted, the required power is also not achieved, and the phenomenon of jitter is inevitable.

The lower the temperature, the greater the amount of oil required for the cold start, and the more carbon deposits will affect the smooth cold start. Everywhere inside the engine, carbon deposits can have a bad impact on the normal operation of the engine. For example, when there is too much carbon in the combustion chamber, the compression ratio will increase and many hot surfaces will be formed, causing premature ignition and deflagration, and shortening the service life of the engine; There is carbon deposit on the working surface of the valve and its seat ring, which will cause the valve to be closed loosely and leak, and the engine is difficult to start, weak to work and easy to ablation of the gas.

The spark plug is not replaced in time is also a common factor, the cold start requires a higher ignition energy, and the spark plug will become larger after using a certain or several mileage, if it exceeds the standard, the spark energy it produces will be greatly weakened, and it is difficult to start the gas mixture in the gas cylinder (commonly known as the lack of cylinder) normally.

In addition, ignition coil failure is also very common, the ignition coil is responsible for converting the low-voltage current of the vehicle into a transformer of high-voltage electricity, so that the spark plug has enough voltage to "produce sparks", once the ignition coil fails, such as its own rupture and leakage, it will cause the spark plug ignition ability to be insufficient or lacking, and then the mixed gas of the cylinder will not deflagrate, the engine lacks cylinders, starts difficult, acceleration jitter, etc.

Of course, in addition to the above faults I mentioned, there are other factors that may cause the cold start of the vehicle to be difficult, so it is necessary to fully consider the problem itself to find out the fault**.

The above is the content I have compiled about "it's not good to start a cold car, it's okay to start a hot car", I hope it can help you. @2019