When the vehicle accelerates, the speed of the car cannot be raised, how to solve it?

When driving on the road, because everyone's car condition is different, the feeling when overtaking is also different. Some cars speed up quickly, and they react immediately with one foot of the accelerator, and instantly throw off the vehicle in front of them for three streets, which must be a manifestation of good car performance. However, there are also cases where it is completely useless after stepping on the accelerator to increase speed.

So how should this be solved? The old driver teaches you three methods, and smart people only use these three tricks to shake off a row of cars in one second.

First, the rapid overtaking of automatic transmission cars. Automatic transmission cars also have some gears to choose from, such as S gear, L gear, and D gear, but most people will only use D gear, and D gear is not much help for acceleration when overtaking, so when we want to overtake, the correct way is to hang into S gear, which can make the vehicle produce more powerful explosive force, and overtaking is a matter of minutes.

second, the overtaking of manual transmission cars; If your car is a manual transmission car, then just stepping on the accelerator to speed up is very slow, at this time you can reduce the speed and then lower the gear, so that the gear and speed of the car can be more matched. After that, step on the accelerator and the acceleration of the car will become very fast, which is guaranteed to make you shake off a row of cars in a second.

Thirdly, the auto-learning function of the car! Whether it is a manual transmission car or an automatic transmission car, there is a certain memory function for the amount of fuel injected in the car, especially in the current situation where the driving computer grasps the overall situation, the car will adjust the power output and engine power matched by the car according to your driving habits. Therefore, when we are in the learning stage of the car, we must ensure the appropriate driving habits, so that after learning, the car can be more "do whatever it wants", and overtaking becomes very simple.

In fact, driving on the road is not as simple as everyone thinks, and cars are not as difficult as everyone thinks. However, it is inseparable from having a good grasp of the car during the driving process, and only in this way can the car have a better state to deal with all kinds of things that happen on the road.

The reasons why the speed of the car can not be lifted when stepping on the accelerator: 1. Check the gasoline pressure and cleanliness, and replace the gasoline filter; 2. Check the ignition system, cylinder line, spark plug, etc.; 3. Check the cylinder pressure and whether the engine is missing cylinders; 4. Check whether the intake and exhaust pipelines are smooth (three-way catalytic blockage); 5. Whether the ignition time is positive, throttle position sensor, idle motor, etc.; 6. Gasoline quality problems.

In this case, you can take a look at the brake fluid. Because the medium used by the clutch is brake fluid, this is possible if the brake fluid is reduced. All we have to do is add brake fluid to the white tank under the hood.

Hello! The speed of the car cannot be raised, and the general situation should be divided into two categories.

First of all, if we step on the accelerator and see the engine speed shirring upwards, it means that there is not much problem with the engine part. Basically, you can adjust the speed according to the depth of the throttle. Explain that the engine is OK.

Then the suspicion is on the gearbox. Is the gear shift working and is the clutch pad or brake band slipping badly in some types of transmission?

The second type is to step on the accelerator, the engine speed is not up, and I feel weak. Then there are many reasons for this. For example, the recent obstruction will also cause the fuel injection volume to not keep up (because the car will forcibly stabilize the air-fuel ratio), then this is due to the weakness caused by the problem of the air intake system.

For example, the air filter is seriously blocked.

In addition, low rail pressure usually causes similar acceleration weakness and speed failure. We can tell by measuring the rail pressure. In other ways, a variety of sensor failures can cause similar problems when the engine is not functioning properly.

Answer: If the gas pedal can't be speeded, you can first check the gasoline pressure and test whether the cylinder pressure is normal, these two '1 conditions are currently an important factor affecting the vehicle. In addition, this can also be caused by blockage of air and gasoline grids and aging of high-voltage lines.

Q: It's been less than a year since the new car was built.

It's been less than a year since the new car arrived.

Often, this is always the case for shifting gears.

Question: I had to change gears before I added oil.

I had to change gears to add oil.

Manual transmission. Manual transmission.

After changing gears, it didn't take long to change gears again.

Question: So how do you solve this problem?

So how do you solve this problem?

Hello Reasons why the speed of the car cannot be increased:

1. Fuel supply system failure. The biggest driving force for the acceleration of our BAI cars is our engine, which in turn works on fuel. So if there is a problem with our fuel supply system, it is natural that the speed of the car will not be increased according to our requirements during rapid acceleration.

2. Failure to control the oil pressure, fuel injection amount or ignition time as required. When our car accelerates sharply, oil pressure, fuel injection and ignition timing are very critical factors, if these three points do not meet the specifications, then it is likely to cause our car speed to not increase.

3. There is a problem with the spark plug and the high-voltage line.

This can be caused by a problem with the throttle, a problem with the air intake system, or a problem with the fuel supply system.

The throttle valve of a car engine is mounted on the intake manifold, and the throttle valve is used to control the amount of air intake into the engine. When the driver presses the accelerator pedal, the throttle opening becomes larger, and the air intake of the engine increases. The sensor can detect an increase in air intake, at which point the sensor sends a signal to the ECU, which can process it to control the fuel supply system to increase the amount of fuel injected so that the engine speed can be increased.

If the throttle is damaged, the car cannot accelerate after the driver presses the accelerator pedal.

Once the throttle valve is damaged, you just need to replace it with a new one.

If there is a problem with the air intake system of a car engine, it will affect the air intake of the engine. The engine is fueled by a mixture of fuel and air, and if the air intake is reduced, it will also affect the power of the engine.

As mentioned above, the engine is fueled by a mixture of fuel and air, so a failure in the fuel supply system can also affect the power of the engine. If the car has a fault, be sure to go to the 4S shop immediately to use a special diagnostic computer to read the fault code, the fault code can help the technician quickly find the cause of the fault and the fault location.

1. First of all, try to judge that there is a problem with the accelerator pedal of the car, because when you step on the accelerator, the cable will drive the throttle, that is, the throttle, and there is a position sensor on the throttle, and the control unit knows the opening of the throttle according to the throttle position sensor signal, and then calculates the corresponding signal voltage, and finally calculates the fuel injection of the vehicle according to this signal voltage. Therefore, if the throttle position sensor is too dirty or the voltage is out of balance, it will lead to the failure of the electronic throttle, and the throttle will not be able to go up at the end speed.

2. If the fault of the electronic throttle is ruled out, then the attention should be shifted to the three systems of the engine's air intake, oil circuit and ignition, and any part of one of the systems is faulty or abnormal, which may lead to the situation that the car throttle is pressed to death and the speed cannot go up.

3. Just mentioned the throttle position sensor signal, in fact, it is a member of the intake system, the engine needs sufficient air to work normally, if the intake system is leaking or blocked, then when the car refuels the throttle, there will be a drop in power, the speed can not go up, and the body shakes.

4. The oil circuit system of the engine is also very important, if poor quality gasoline is added, it is very likely to lead to gasoline pump burnout, three-way catalytic failure, piston failure, etc., which directly affects the engine power, and is easy to cause the engine to stall and accelerate without raising the speed.

5. There is also an ignition system, ignition high-voltage lines generally rarely have problems, then the main problems are in the ignition coil and spark plugs, because they are all wearing parts, when the performance of the spark plug decreases or the use of inferior spark plugs will lead to the car acceleration weakness, acceleration jitter and other conditions.

The reasons why the car can't raise the speed are: 1. Clutch slippage: the speed rises very quickly when you step on the accelerator, but the speed can't be increased, and you obviously feel that the acceleration is weak; 2. Poor oil quality

Affect the gasoline filter element and oil circuit, which will lead to poor oil supply; 3. Throttle carbon deposit: carbon accumulation in the throttle will affect the air intake, which in turn will lead to insufficient engine power; 4. Fuel supply system failure: the speed of the vehicle cannot be increased normally according to the requirements during rapid acceleration; 5. Failure to control the oil pressure, fuel injection amount or ignition time according to the requirements

Oil pressure, fuel injection and timing of ignition during rapid acceleration are all critical factors; 6. There is a problem with the spark plug and the high-voltage line.

Hello! 1. The possible reasons are the failure of the engine's fuel supply system, the oil pressure, fuel injection volume, ignition time do not meet the specifications, and the spark plug and high-voltage line failure.

2. Check that the ignition timing meets the specifications, and replace the spark plug.

3. The final inspection confirms that the high-voltage spark is not strong enough at high speed.

Clutch slippage. The phenomenon of clutch slippage is to press the accelerator suddenly, and the speed rises quickly, but the speed does not increase. I clearly felt a state of acceleration and weakness.

Solution: To change the clutch plates. The reason for clutch slippage is mainly because of incorrect driving habits.

For example, riding the clutch for a long time; The clutch is not stepped on to the end, the gear is not in place, and it is not thorough; The vehicle is in a semi-clutch state for a long time, and so on.

The oil quality is poor. Poor quality oil used will affect the gasoline filter and oil circuit, which may lead to poor oil supply, resulting in weak acceleration.

The displacement of the car is small, and there is too much weight on the car. If this is the case, it is normal.

The car accelerates normally when accelerating slowly, but cannot immediately increase the speed and cannot overtake when accelerating sharply. The possible cause is a malfunction of the engine's fuel supply system, oil pressure. Fuel injection. The ignition time does not meet the specification, and the spark plug and high-voltage line fail.

Practical example: There is a car with the above phenomenon. The engine was idling and returning to the test, and no abnormality was found.

Check the engine's fuel supply system, its oil pressure. The amount of fuel injected is normal, and the reading data stream indicates that the fault is in the ignition system. Check that the ignition timing is in accordance with the specification, and after replacing the spark plug, the fault is still the same.

Finally, the inspection confirmed that the high-voltage spark was not strong enough at high speed. Use the multimeter to measure the resistance value of the high-voltage line of each cylinder, which is 25. Due to the high speed.

When the engine is under heavy load, it needs strong ignition energy, and the resistance value of the high-voltage line is too large, resulting in the attenuation of ignition energy and the weak high-voltage fire, which causes the engine to accelerate weakly. Troubleshoot after replacing a new set of high-voltage wires.

Car acceleration requires a process, and it is the cooperation of the clutch and accelerator to speed up.

Fault Judgment: True Fault.

Reason analysis: the car accelerates normally during slow acceleration, and the speed cannot be increased immediately when accelerating sharply, and it is impossible to overtake. The possible cause is a malfunction of the engine's fuel supply system, oil pressure. Fuel injection. The ignition time does not meet the specification, and the spark plug and high-voltage line fail.

Solution: should go to the repair shop in time for replacement and repair.

Followed. The reasons why the car can't speed up are: 1. Fuel supply system failure:

The biggest driving force for the acceleration of the car is the engine, and the engine is driven by fuel, so if there is a problem with the fuel supply system, the speed of the vehicle cannot be increased normally when accelerating sharply; 2. If the oil pressure, fuel injection volume or ignition time are not controlled according to the requirements, if these three points do not meet the specifications, it is likely to cause the speed of the car to not be improved; 3. Problems with spark plugs and high-voltage lines: spark plugs and high-voltage lines are important accessories of automobiles, and the role of spark plugs is mainly to produce sparks to induce the mixed gas in the cylinder to increase the speed of the car, so when there is a problem with the spark plug and the high-voltage line, the car may not be able to increase the speed.

Either the power sucks, or the car breaks down!!

This kind of problem may be caused by three types of problems: oil circuit failure, circuit failure, and mechanical failure.

The common problem of oil circuit failure is that the injector is blocked, and the oil circuit should be dredged in time when this situation occurs. Circuit failures are most likely caused by the failure of the air flow meter, as can the failure of individual spark plugs to ignite. Mechanical failures are more extensive, and poor engine airtightness is the most common problem that causes weak acceleration in sharp acceleration, and it is best to replace the piston rings.

The car ran to 80 and then couldn't pick up the speed.

First of all, we check whether the speed control system has set a maximum speed limit of 80 km/h, and try to press the speed limit button to lift the speed limit. If the problem is still not solved, we can pay attention to whether the speed of the car is relatively high, and if so, it proves that the transmission of the vehicle may not be able to go up to the highest gear, so the top speed of the car is greatly affected. Of course, if the engine has serious carbon deposit problems, it will also affect the power performance of the vehicle, and it is necessary to carry out carbon deposit cleaning regularly.

If the vehicle's power deteriorates suddenly, it may be caused by a spark plug failure or a clogged air cleaner. If the power deteriorates and the engine shakes seriously during driving, it is likely to be caused by abnormal ignition of the spark plug, which can only be solved by replacing the spark plug. If the air filter is not replaced for too long, it will affect the efficiency of the vehicle's air intake, and if the air intake is too small, the power of the car will become very poor.

Reasons for the car's weak acceleration:

1. The fuel injector is blocked, the oil pipe is leaking, the power of the gasoline pump is reduced, and the gasoline filter is blocked;

2. Air filter, throttle and other components are blocked or have problems, resulting in insufficient air intake;

3. Poor ignition of spark plugs;

4. At least one cylinder of the engine is running abnormally or stalling;

5. The failure of the exhaust system mainly refers to the poor exhaust, which is generally caused by three-way catalytic crushing;

6. Clutch failure;

7. Insufficient tire pressure;

8. If there is black smoke from the exhaust pipe, then there is a problem with the combustion chamber, ignition system and valve;

9. If there is blue smoke from the exhaust pipe, then it is possible that the engine oil has run to the combustion chamber.