The automatic transmission car stepped on the accelerator slowly, and the sound was loud, what s goi

It's a matter of matching your car's engine and gearbox! The sound of domestic cars is relatively loud.

It is normal for an automatic transmission car to feel unable to speed up when stepping on the accelerator.

The main reason is that automatic transmission cars require a process of power accumulation, which is generally converted through a torque converter, so this situation is very common.

Most car owners are subconsciously stepping on the accelerator to speed up, but in fact it is useless, starting with D gear, then it must be a step slower, and many people step on the accelerator when starting, insufficient fuel, it will affect the effect of starting, the speed of the engine slows down, and the speed of the car will naturally not be fast.

With the country's GDP rising sharply, the number of cars has also risen sharply, and the replacement of cars is faster than ever, and automatic transmission has occupied a place in the market with its convenient advantages, but many car owners still have little understanding of automatic transmission, and some people will only step on the accelerator when they open automatic transmission, which has attracted many old drivers to complain.

It's not normal, so you have to determine if it's a problem with the engine or the gearbox. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Step on the throttle deeply, [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Abnormal [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

There is no problem with running and jumping gears [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The sound of the engine is directly related to the speed, and the higher the speed, the louder the sound. When you press the accelerator, the engine revs higher and the sound increases.

1. During the process of starting the engine, there should be no screaming sound in the starting motor; The engine idle speed "sudden sound" is uniform, and there is no abnormal noise; The idle speed is stable at about 850 rpm (please refer to the car Dachang manual for the specific stable idle value).

2. Gently step on the accelerator, let the engine speed slowly increase, there should be no noise in the process, individual models will have resonance phenomenon at a fixed speed, that is, the whole body shakes (if the resonance is very slight, if it does not cause discomfort in the ride, it should be normal), and the resonance phenomenon should be eliminated after the speed; When the engine speed exceeds the maximum power point speed, the sound is generally more noticeable, but there should be no metal friction sound.

3. Quickly press the accelerator pedal, and the sound of engine power improvement should be smooth and non-stuck; Carefully distinguish the sound of each engine speed. The main posture shirt to produce noise includes: valve sound (generally "clicking" sound), if it is large, there is a suspicion of top valve; All kinds of belt rotation sounds (generally "squeak" sounds), if large, may be the belt and the body friction; If the engine emits other friction sounds, it is doubtful that the sudden sound is masked.

4. Find a suitable place, drive the vehicle according to the compound road conditions for 5-10 minutes, and the idle speed should still be stable at the original idle speed without change after stopping, and the sound should be the same as before.

5. Open the engine cover, listen to the sound on both sides of the engine, and at the same time move the accelerator to control the raft, and then listen carefully to the sound of the imitation cavity motive according to the key points mentioned above.

If you hear a buzzing sound when the car steps on the accelerator to accelerate, the first consideration is the problem of the gearbox, and it is very likely that the transmission bearing grinds and makes a sound that is damaged, which is caused by too little lubricating oil and too much friction, and you need to add oil. There are many factors that make it loud, such as low engine oil, aging of the engine, and we need to check the cause.

Summary. In fact, the main reason is that your throttle clutch is not well matched, especially the novice must slow down the clutch when starting in first gear, put it at the junction point, that is, when you feel that the car has forward momentum, stop and don't put it again, then you must refuel, and when the speed goes up to more than 1500, you must slowly release the clutch. You'll be able to get off to a smooth start.

Don't develop such a bad problem as not refueling at the start, now many cars have high requirements for speed matching, and the fire will be extinguished directly without oil at the start. This is not difficult, mainly a journeyman, just practice more. In the future, you will also need to use a fast start before the traffic light.

If you don't step on the gas, the car will suffer!! Because the traffic lights are very short in big cities, the first car will start slowly and there will be fewer cars than many cars.

Hello, in fact, the situation you said frankly is that the driving school said that the starting three nods, or also called the front and rear Liang Sotong frustration, giving the driver and passengers a feeling of instability, so that people can see that the novice is not proficient in the call.

In fact, the main reason is that your throttle clutch is not well matched, the first gear start, especially the novice, must release the clutch slowly, put it to the junction point, that is, when you feel that the car has forward momentum, stop and don't put it again, you must refuel at this time, and wait for the speed to go up to more than 1500 when you slowly release the clutch. You'll be able to get off to a smooth start. Don't start without adding Lushen oil This kind of bad problem should not be cultivated, and now many cars have high requirements for speed matching, and the fire will be extinguished directly without oil at the start.

This is not difficult, mainly a journeyman, just practice more. In the future, you will also need to use a fast start before the traffic light. If you don't step on the gas, the car will suffer!!

Because the traffic lights in big cities are very short and the return is late, the first car will start slowly and there will be many fewer cars.

I hope mine is helpful to you, please give me a thumbs up, thank you