Automatic transmission cars can not coast without turning off

The car of automatic transmission is generally set by the computer to set the gear or automatically set the oil supply or cut off the oil is different from the gearing car, the neutral gear slide can not achieve the effect of fuel saving, and the design of the automatic gearbox is different from the gearbox design of the manual gear, the automatic transmission car can not be neutralized for a long time, so it will damage the gearbox, when the neutral gear (N gear) is coasting, due to the difference in the driving speed of the car and the engine speed, the oil pressure in the hydraulic pipeline in the automatic transmission will be insufficient, which will not only increase the friction and reduce the lubrication effect, It will also damage the friction plates inside the automatic transmission. Once the automatic transmission is damaged, it is not only expensive to repair (the ** of replacing the new box will generally reach 5 figures), but also the maintenance is complicated, and it is necessary to go to a professional transmission maintenance station, and the number of such repair stations in China is very small. At the same time, the entire vehicle cannot be started and driven.

And when towing is the same, you must lift the drive wheels off the ground to be able to trailer, these instructions are written, you should read it carefully, otherwise it will damage your car a lot. Automatic gearbox maintenance is more expensive than the engine.

Hello, yes, but it's not fuel-efficient and unsafe, it's not recommended, if my answer is helpful to you, please set it to! Thank you!

It is absolutely not possible to hang neutral during exercise. Not only is it unsafe, but the gearbox is not lubricated at this time, which will seriously damage the gearbox.

Hello, this is not possible, if it can help you, I hope to set the best, thank you.

It is possible to hang neutral, but it is recommended not to hang neutral, as there is no benefit at all.

Neutral coasting is not recommended for automatic transmissions for the reason of fear of wear and fuel, but as long as the reason is not for all automatic transmissions, it is not possible to slide in neutral. Transmissions that are driven with torque converters should not coast in neutral due to the fact that the gearbox quickly loses its lubrication capacity after neutralization;

Reasons why the car with automatic transmission cannot coast in neutral gear:

1. Different from the 2113 mechanical hard connection of the manual transmission, the automatic transmission uses a hydraulic torque converter for power transmission. Pass.

The engine drives the transmission oil and indirectly transmits power to the wheels, all three of which coexist in the torque converter.

2. However, when the gearbox is in neutral, the engine speed will gradually fall back to a level of about 1000rpm (depending on the model). The wheels continue to rotate, driving the flow of transmission oil, but due to inertia, the transmission oil will be more concentrated on one side of the wheel. As a result, the gears of the transmission components 5261 are still lubricated even in neutral gear.

3. What really causes damage to the gearbox is actually caused by the speed difference between the wheel speed and the engine shaft. On the manual transmission model, the driver hangs the gear from neutral to the forward gear, can choose the appropriate gear according to the engine speed, and the clutch is semi-linked while still through the control of the oil supply to make the car 4102 wheel speed and the engine transmission shaft tend to be synchronized.

But the automatic transmission is not so smart, and this speed difference has the effect when the automatic transmission engages the forward gear in neutral.

Coasting in neutral is not possible for the following reasons:

1. Here take the AT gearbox as an example, the automatic transmission model hangs neutral gear (N gear) Let's first analyze the structural problem, the vehicle is in the process of driving, if Yincha instantly switches the D gear to N gear, then the gears of the gearbox will be idling, the engine will be in an idle state, and the sliding driving wheel will also drive the gears of the gearbox to rotate at high speed, so that the two gears will produce the problem of speed difference, and over time the gearbox will be damaged due to insufficient lubrication;

2. And when the vehicle slides in neutral gear, the gearbox will heat up, and the heat dissipation of the gearbox relies on an internal pump to circulate the gearbox oil, and then dissipate the heat through the radiator. However, if the pump does not work when driving in neutral gear, and the heat cannot be dissipated, the automatic transmission will overheat, and the protection measures will be turned on at the least, and the transmission will be burned out;

3. I believe that many car owners want to rely on the vehicle's inertia neutral gear to slide, so as to reduce some fuel consumption, but the vehicles currently running on the market are basically using EFI or direct injection engines, and the fuel supply method is controlled by the accelerator and ECU computer through Qinye, and it is not that when you put the vehicle gear on the N gear, it will stop injecting, so its working principle is: if you let go of the accelerator pedal, the ECU computer will control the fuel injection nozzle to reduce the amount of fuel injection, and if the vehicle slides in neutral gear, At this point, the engine is idling, but the ECU computer will continue to inject fuel to avoid engine stalling, so coasting in neutral will not actually save fuel, and it may be more fuel-intensive! We all know that if the engine is in the forward gear, there will be a certain speed limit, which has the effect of engine braking!

However, if the vehicle is in neutral and coasting, there is no engine braking effect, and if you are on a downhill section, it may not be enough to brake only (thermal decay problem), which is prone to a front-end accident.

The claim that the loophole slide is dangerous is not alarmist, but the red-mouthed and white-toothed who think they are smart and very irresponsible. As a veteran driver, when I started to get on the bus, in addition to not sliding meticulously, I also used this technique at other times, during which the manual interception and automatic interception were changed many times, and the evil consequences and hazards caused by the empty slide were not found. In order to make my claims not too lonely and helpless, and to show that I am not so ignorant, I even searched the Internet for a long time, queued up, searched all the relevant valuable information under my eyes, and then judged, but on the contrary, some senior people who have received high-level praise and advanced study of subjects can not actually see this issue, speak with data, use theoretical support, and clearly explain this principle, so that they can see it at a glance.

As a bereaved family, I often pay attention to ** about the car on the Internet. But slowly, the so-called car emperors tend to find this sentence and the whole quotation contradictory. The prologue then does not speak, and will find itself slapping himself in the face.

I really don't know why they interrupted Zhao Gang and said that sentence themselves. Empty slides are harmless, but not without risk factors. People who don't glide, or who aren't good at mastering the rhythm, can be dangerous during the gliding process.

For example, it is possible to inadvertently turn off the lights, lock the direction, etc., but these are only proficient processes, not professional theoretical knowledge support, which takes a long time and is easy to master while driving.

Empty gear coasting refers to the operation method in which the driver puts the gear lever in an empty position to separate the engine from the clutch of the driving wheel and use the inertia of the vehicle to drive during the driving process. Air block gliding first occurred on older cars that used carburetors, which mechanically worked passively. Regardless of whether the transmission is in air, forward or counterflow, as soon as the gas passes through, the corresponding amount of fuel is drawn in and involved in combustion.

Some veteran drivers used to drive so fuel-efficient, so this habit has been delayed until now. Can coasting in neutral hurt the car? The answer is yes.

First of all, the engine that coasts in neutral gear is in the idle state, the engine oil is limited, and the lubrication system cleaning, lubrication, sealing, cooling and other functions of the engine are greatly reduced for a long time.

When coasting in neutral gear, the power generation of the generator of the car, the cooling water circulation capacity of the engine, and the air volume of the fan are all at the lower limit, and the pump efficiency of the air compressor is low, which affects the function of each air device and reduces the engine braking function. In addition, due to the high driving speed of the vehicle when coasting in neutral gear, the speed of the output shaft of the transmission is relatively high, the relative force and impact between the meshing gears when the gears are reassembled are larger, the tooth fatigue breaks, and several teeth fall off as a whole in serious cases. In addition, when coasting in neutral gear, the medium flow and working pressure of the vehicle's power steering system are built slowly, and the vehicle conversion will consume the driver's physical strength, and when the turnaround time is long, the abnormal tire wear should be accelerated and the tire life should be shortened.

I think the damage to the car is still quite big when coasting in neutral, it will increase the friction inside our car, so that some parts are damaged, and it will make the performance of our car worse, this kind of behavior we must strictly stop it, it will produce many bad consequences, we must standardize our driving process.

Driving a car without turning off the ignition, sliding in neutral gear, there is a safety hazard that cannot control the vehicle's driving route, there is an increase in the braking distance, can not brake, the brake fails, the vehicle is easy to lose control, causing traffic accidents The safety hazard is not harmful to the car.

It will wear out the clutch, so the damage to the clutch is great, and it is not recommended to do so.

Coasting in neutral can damage the gearbox of the car, and can also damage the engine of the car, and it is easy to put your life at risk, and you can't brake the car in case of an emergency, and you can also reduce the service life of the car.

First of all, automatic transmission and manual transmission are not the same. Let's talk about manual transmission first, manual transmission car, first of all, it is not recommended, neutral sliding, but even if neutral sliding, there is no damage to the car. But there will also be a problem, when you slip in neutral, manual transmission, braking distance will also become longer, so it is not conducive to safe driving, and now they are EFI models, your manual transmission of neutral slip, will be more fuel-efficient than gearing, because it is still fuel injection.

Automatic transmission, is to prohibit neutral sliding, first of all, in the process of driving, do not change to neutral, this is a violation of the operation process, and there will be very big damage to the gearbox, because many gearboxes, no oil pressure, damage to the gearbox is very serious.

Coasting in neutral can cause brake wear, increase the burden on the braking system, lead to thermal decay, and eventually risk brake failure, which can also reduce the life of the car.

The damage is very large, the neutral slide will make the parts of the car particularly seriously damaged and will also affect the service life of the car, the engine wear of the car is more serious, and various properties will be reduced, such as cleaning, lubrication is the most obvious.

For the purpose of fuel saving, in the gear mode, the modern EFI engine supports to stop the fuel injection at the same time as the spark plug stops ignition at a certain speed and a certain number of engine revolutions, and uses the inertia of the car to reverse thrust to send a clear type of motive to run. Besides, the neutral coasting braking distance is long, and driving on the road safety is the first! You only live once!

It's not for you to perform stunts, so why embarrass yourself!

Of course, the above point is not to advocate that everyone use neutral to coast, I just want to prove that there is no effect on the car. With 20 years of qualifications and 3 million kilometers of experience, you've crossed more bridges than you've ever walked.

<> the only threat of coasting in neutral is to increase the burden on the braking system when braking is required, resulting in early thermal decay (thermal decay will also occur in the gear, only later), which can only occur when going down a large long slope, and it doesn't matter if the short downhill or flat ground of the general city road. In order to make my statement not too lonely and helpless, and in order to show that I am not so ignorant and pretentious, I even searched and stayed on the Internet for a long time, and collected some relevant and valuable information, and then screened and judged. The engine not only provides traction, but also braking power.

The braking power that the engine can provide is related to the speed, speed, and gear, and you can use it flexibly if you can figure it out.

An operation method that utilizes the vehicle's inertia to drive. Neutral coasting first appeared in the use of carburetor carburetor in the old carburetor, the carburetor works mechanically and passively, regardless of whether the transmission is in neutral, forward or reverse gear, as long as there is gas through the driver to put the gear lever in the neutral position, so that the engine and the clutch of the driving wheel are separated, and the operation method of driving is carried out by using the inertia of the vehicle. So how big can "neutral coasting" be to save fuel?

If the engine is idling, it will cause insufficient suction, and the most direct consequence is that the brakes will be applied with greater force, and the braking distance will increase.

It is harmful, which will affect the braking effect of the brakes, and will also affect the power of the engine, and will also shorten the service life of the car.

There are hazards. Because if the engine is not turned off, it will always be running, and if it slides in neutral, it will cause serious wear and tear on the engine.

Of course, there are hazards, because there is no power when coasting, and the car's handling is reduced, and it is easy to get into traffic accidents.

There are many people who are extra inattentive in the process of driving, which is easy to cause some safety accidents at this time. These accidents are also very bad, so everyone should pay close attention to them. There are many drivers who slide in neutral without turning off the ignition, in fact, the harm of neutral coasting is still very serious, and sometimes it will cause car traction and car brake failure.

This can also lead to a worse situation, so everyone should pay good attention. <>

Coasting in neutral is really serious, if some drivers don't pay attention to these things, then it will lead to some more serious accidents. These accidents are also very headaches, and people also say that these accidents are really very bad. Therefore, people try not to slide in neutral, which is also irresponsible for their own lives, and some worse things will happen in serious cases.

Coasting in neutral gear is really very bad, if people can't brake in time, then the consequences can be imagined. <>

Avoid some unreasonable driving behaviors, so everyone should also avoid and pay attention to it, sometimes sliding in neutral gear is also very bad. The relevant laws also clearly stipulate that it is forbidden to coast in neutral mode. After all, this practice will also damage the gearbox, and sometimes it will cause some irreparable damage.

People also feel that the practice of sliding in neutral is disrespectful to life, and if some accidents happen, then many people will feel very heartache. <>

Driving well on the road, many netizens also said that sliding in neutral gear is really very serious, which is also hoped that people can pay attention to and avoid it. In the process of driving, you should also drive reasonably, and you should not do some bad behavior. These actions are also irresponsible to themselves and cause harm to other pedestrians on the road.

Therefore, people should also regulate their behavior, and they should also drive well when driving.