After the car maintenance and oil change, the idle speed increases? What s going on, is there a prob

Friend! The letter "T" has become a special status symbol for turbo, which has more power than naturally aspirated engines. Advanced turbo engine technology improves power output by improving the quality of the air entering the combustion chamber to make gasoline burn more fully.

When the turbocharger is installed on the engine, the maximum power can be increased by 40% or even higher than when the supercharger is not installed, but the fuel consumption under the same situation is not higher than that of a normal engine. Therefore, in the current situation of increasing awareness of energy conservation and emission reduction and environmental protection, the T-head has been rapidly promoted and popularized, and the T-head car has also won the favor of many car owners because of its surging power and good fuel economy. However, while the turbocharged engine increases the power output, the maximum burst pressure and average temperature generated during operation are also greatly increased.

Cars loaded with turbochargers have also run 100,000 or even 200,000 kilometers without the legendary turbocharger damage. Most of the turbochargers that have problems today are due to a damaged oil seal between the turbocharger and the intake pipe, resulting in large-scale oil burning. The main reason for the damage of the oil seal is that the oil replacement cycle is too long or the use of inferior engine oil, resulting in the lack of lubrication and heat dissipation of the floating turbine main shaft, which in turn damages the oil seal first, resulting in oil leakage.

Develop good habits.

When the car starts, drive gently. Since the turbocharger is cooled by oil, the oil lubrication is not good when the cool car starts, and the supercharger will wear a lot if it runs at high speed. It should be idle for two or three minutes, and then let the engine run at high speed when the lubrication performance of the oil is good, so that the turbocharger can be fully lubricated, which is especially important in winter.

Do not turn off the engine immediately after the vehicle is running at high speed. If the ignition suddenly goes out, the oil lubrication will be interrupted, and the heat inside the turbocharger cannot be taken away by the oil, which is easy to cause the "bite" between the turbocharger shaft and the shaft sleeve. In addition, when the engine suddenly stalls, the oil to the turbocharger stops flowing, and if the temperature of the exhaust manifold is high at this time, its heat is absorbed into the turbocharger housing, and the oil that stays inside the supercharger is boiled into charcoal.

When this kind of carbon accumulation increases, it will block the oil inlet, resulting in a lack of oil in the bushing, accelerating the wear between the turbine shaft and the bushing, and even producing the serious consequence of "biting death". Therefore, the engine should be idle for about 3 minutes before turning off to reduce the turbocharger rotor speed. However, the turbocharged engine should not idle for a long time, otherwise the supercharger will also cause poor lubrication due to low oil pressure, and the general idle time should not exceed 10 minutes.

Conduct regular check-ups.

Due to the high cost of turbochargers, and even the serious consequences of turbocharger damage and even engine damage caused by long-term poor use, the regular inspection of vehicles must be highly valued. Not only can the problems of the vehicle be detected as soon as possible, so as not to cause irreparable losses, but at the same time, the owner can also consult the maintenance master to learn more and better about driving the vehicle and maintaining the common sense of the vehicle.

Hello, what car are you? The idle speed of the cold car is still high or all the time.

If it is normal to change the oil with idling.

In fact, it has nothing to do with it; If the idle speed of the car is too high after changing the engine oil, it is possible that the following two situations may occur.

1. The car used winter engine oil before, and the viscosity of the engine oil was large, but this time it was changed to the four-season engine oil, which had low viscosity and low engine resistance, which led to idling.

2. It may be that you have changed to fake engine oil. Switching to fake engine oil can cause great damage to the engine, accelerating engine aging at least and causing engine premiums. Therefore, when changing the engine oil, you must find a regular car maintenance place for oil change maintenance.

Solve the fault of high idle speed of the car:

1. Check the throttle opening.

For most electronically controlled engines, when the engine reaches normal temperature and the idle valve is completely closed, the basic idle speed is set to 500 50r min. If the basic idle speed is too high, the vacuum seal of the system, especially the vacuum tube, should be checked.

Sealing of PCV valves and crankcases and other related parts.

2. Check the load signal of the engine.

At this time, the idle control valve can be connected, and the opening should be between 15% and 25% under the normal working temperature of the starting and changing hidden machine, if the idle control valve is opened too much, the engine load signal should be checked whether it is normal, such as the temperature value of the air conditioning signal, battery voltage and water temperature sensor.

3. Check the vacuum degree of the intake manifold.

When the engine is under normal idle conditions, the vacuum of the intake manifold should be 57 71kpa, if the vacuum is too low, it will cause the pressure signal of the engine intake system to be abnormal, and the engine computer will mistakenly think that the load will increase, so as to increase the idle speed.

Hello, it is normal for the idle speed of the new engine oil to be high, and it will generally return to the same as the original after half a month.

1. The brand of engine oil is different.

2. The viscosity of engine oil is different.

3. Let's move the sensor.

First, the idle speed is too high and the oil is generally not related, it may be to the 4S shop to do the big maintenance, may be because of the air intake flow sensor, or the cleaning of the air intake system including the throttle valve has not been debugged, there are many reasons, generally speaking, it is unlikely to be caused by the oil. You can go to the 4S store for consultation.

2. Possible causes:

1. The air intake system, fuel system, ignition system, etc. can all cause the possibility of excessive idle speed. In addition, water temperature, carbon tank purification, and contact catalysis can all be caused.

2. Air intake leakage, abnormal fuel system control, dirty throttle body or poor valve jamming, etc. Or there is a poor return of the accelerator pedal (the old type of pull wire).

3. Some small "events" such as leakage or aging of the ignition system can cause circuit fluctuations, poor ignition of spark plugs, poor conduction of ignition coils, etc., which can cause excessive idle speed.

4. The water temperature is abnormal, and the ECU receives the wrong collection information: the sensor is faulty, the fuel injection volume increases, etc. It is also a possible manifestation of high idling.

5. It is recommended to enter the maintenance station for testing, use the detector to detect the specific fault part, and then "prescribe the right medicine" to repair it in a timely and accurate manner.

First of all, if the oil is not changed for a long time, it will lead to insufficient power and even engine damage in the car. During engine operation, there is a relative sliding between the piston and the cylinder, and if the oil lubrication force is insufficient, it will lead to serious wear of parts.

In addition, if the oil cooling effect is reduced, the engine cannot be cooled in time, and the long-term temperature is too high will lead to shortened life and even affect the overall performance of the car.

After all, the engine is the power of the car and occupies the position of the "heart" of the car, so it is very important to change the oil in time for engine maintenance.

Secondly, the engine oil can wash some impurities on the engine parts, such as the carbide produced, oil sludge and other substances, which plays a cleaning role in the engine.

In addition, the oil creates a seal between the pistons, preventing outside contaminants from entering the engine.

Therefore, if the oil is not changed for a long time, there will be more and more impurities and pollutants, which will not only not be able to clean the engine during the cycle, but also may cause failure due to some impurities blocking the engine.

Because the oil has been changed, it may be that the quality of the oil is very good, plus it is a new oil, the temperature is also suitable, and the viscosity of the oil is just right, so that the car will speed up very quickly.

It may be that the previous oil and the vehicle did not have enough pace, or it may be that the vehicle is more adaptable and has more power after changing the gasoline.

The car idles after changing the oil.

The reason for the low imitation is that the oil change improves the degree of lubrication inside the engine, the wear of the internal parts of the engine is reduced accordingly, and the idle speed is naturally reduced.

The amount of oil for the car change should be slightly lower than the scale on the dipstick, too much oil will increase the crankshaft.

to reduce the power output of the engine.

And the excess oil will enter the combustion chamber to participate in combustion, causing the vehicle to burn the engine oil.

Blue smoke and increased fuel consumption. When adding lubricating oil, be sure to keep it slightly lower than the scale on the dipstick.

In addition, it is necessary to grasp the model, season, climate, and engine displacement of the engine oil.

technical performance and many other factors. The car owner buys the best engine oil, and it is best to go to the specialty store, the special oil change center and the authorized dealership. As for distinguishing whether these retailers are authorized by the manufacturer, in addition to looking at the relevant certificates.

The family car can't speed up after the maintenance of the engine oil, and it is very likely that the engine oil is still thereBreak-in periodIt may also be caused by too much or too little engine oil, and we must develop good driving habits in the process and carry out daily maintenance in time to avoid other problems.

The engine is the main part of the car, the car oil change, can be said to be the most basic maintenance items, most car owners have a question, that is, after the oil change will find that their car is unable to speed up, in fact, this has a certain relationship with the viscosity of the oil and the oil. Most vehicles must choose the oil that matches their own model to achieve the purpose of maintenance, once the choice of too fine viscosity oil will definitely affect the performance of the engine side He will accelerate too slowly. <>

The speed increase is too slow and has a certain relationship with the amount of oil filled.

Heavy liposuction. In the process of driving, the oil in the engine needs to be lubricated and cooled through continuous circulation, and if there is too much oil, it will cause the excess oil to enter the combustion chamber and produce a large amount of carbon deposit.

With the continuous loss of time and the poor driving habits of the rest of the driver's friends, it will lead to the phenomenon of slowing up too slowly, and if you can't repair the delivery in time, there may be oil burning.

situation. <>

Improper maintenance causes the car to speed up too slowly.

Most car owners know how to change the oil in time, but there are also a small number of car owners who will choose not to change the oil filter in order to better save costs. The main function of the oil filter element is to filter the impurities and moisture in the oil, if you only change the oil without changing the oil filter element, it will also lead to the accumulation of a large number of impurities in the engine, affecting the performance of the oil. <>

What is my personal opinion?

In the process of driving the vehicle, we must pay attention to the daily maintenance of the vehicle, if the vehicle can not speed up after the maintenance, we must pay attention to it in time, whether it is the brake pads.

It is essential to check the brake disc and the oil quality.

In this case, it should be that the viscous oil has been changed, and the engine load is large, and the power will naturally deteriorate.

Different engines need different types of engine oil, change the oil acceleration weakness, may be a mismatch problem, first determine what oil is suitable for the car, and change it again. Bu Sui.

It is very likely that the vehicle and the new oil have not adapted well, or too much oil has been added.