Wuling light runs high gear and is noisy, what is the fault

The transmission shaft is hairpinned, or the gap is large. It's not expensive, let's change it! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, you can go and check if it is tire noise, or bearing noise. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

You can only use high-end at normal high speed, and low-speed high-end is originally noisy [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Check the gearbox and rear axle to see if the oil is too dirty, and try changing the gear oil. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

To change gears after 2000 rpm, the speed of the car is fast and the noise is louder, see if it is within the normal range [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, a lot of it is the sound of the rear axle, it will be better to change the oil [If there is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

It is normal for the light of this car to be noisy, first of all, the sound insulation is not good, and then its tire noise is also relatively loud, and secondly, the engine increases the noise due to the sound transmitted to the car under the seat, and the rear axle due to wear or oil deterioration, and the noise will be less [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

There could be the following reasons:

1. The relationship between abnormal noise and engine speed.

The presence of most common squeaks and squeaks in an engine depends on the state of the engine's rpm.

1. Abnormal noise only exists when it is running at idle speed or low speed. The reasons for the sound are: the gap between the piston and the cylinder wall is too large; The piston pin assembly is too tight or the connecting rod bearing is assembled too tightly; The gap between the tappet and its guide hole is too large; The profile of the valve cam is worn; Sometimes, the starter grip comes loose and the pulley makes a sound (noticeable when the speed changes).

2. The sound is disordered when maintaining a certain speed, and a short sound is made successively when decelerating sharply. The reasons for the sound are: the camshaft timing gear is cracked or its fixing nut is loose; crankshaft breakage; The piston pin bushing is loose; The axial clearance of the camshaft is too large or its bushing is loose.

3. The abnormal sound occurs when the engine accelerates sharply, and the sound still exists when maintaining high-speed operation. The reasons for the sound are: the connecting rod bearing is loose, the bearing is burned or the size does not match and rotates; loose crankshaft bearing or bearing burning capacity; The piston pin is broken; crankshaft breakage;

Second, the relationship between abnormal noise and load.

There is an obvious relationship between a lot of abnormal noise on the engine and its load, and the method of relieving the load can be taken cylinder-by-cylinder during diagnosis, and the load of one or two cylinders is usually relieved by the single-cylinder or double-cylinder fire breaking method to identify the relationship between the abnormal noise and the load.

1. A cylinder is fired, and the abnormal noise is absent or reduced. The reasons for the sound are: piston knocking on the cylinder; Loose connecting rod bearings; piston ring leakage; The piston pin is broken;

2. If a cylinder is fired, the sound will be aggravated, or there will be no sound at this time. The reasons for the sound are: the piston pin copper sleeve is loose; The piston skirt cone is too large; piston pin out; The connecting rod bearing cover fixing bolt is too loose or even the connecting rod bearing alloy is burned and melted off; The flywheel retaining bolts are too loose.

3. The abnormal sound of the adjacent two cylinders is reduced or disappeared. The reason for the sound is that the crankshaft bearing is loose.

3. The relationship between abnormal noise and temperature.

1. The sound is low temperature, and the sound is reduced or even disappeared when the temperature rises. The reasons for the sound are: the gap between the piston and the cylinder wall is too large; The piston is misaligned due to the depth and width of the main bearing oil groove; Low oil pressure and poor lubrication.

2. There is a sound after the temperature rises, and the sound decreases or disappears when the temperature decreases. The causes of the ringing are: premature ignition caused by overheating; The long and minor axes of the piston skirt oval are opposite; The piston ovality is small, and the gap between the piston and the cylinder wall is too small; piston deformation; The gaps between the piston rings are too small.

1. The vehicle engine is one of the most noisy vehicles, and its noise generation is different with the different engine speeds.

Solution: Some high-grade sound-absorbing foam materials can be added to the engine cover, which can not only suppress the vibration caused by the hood, but also absorb a lot of noise, and the effect is obvious.

2. When there is a leak in the intake and exhaust pipe, when the engine is started, the gas will leak from the leakage when the intake and exhaust are intake, resulting in vibration and noise.

Solution: In the face of such a situation, you need to check the intake and exhaust pipes, and replace the intake and exhaust pipes to avoid noise.

3. Tire noise is generated by the friction between the tire and the road surface when the vehicle is driving at high speed, depending on the road conditions to determine the size of the tire noise, the worse the road conditions, the greater the tire noise, and the asphalt road and concrete.

There is a big difference in the tire irritation caused by the road surface.

Solution: Tire noise is structure-borne noise, and its main source is vibration, and the most reasonable solution is to control vibration. Adding a damping plate and a sound-absorbing pad can solve road noise and tire noise well.

Summary. The noise of Wuling Rongguang is mainly in several places, one is that the sound insulation effect of the car is not good, the second tire noise, and the third is whether the exhaust system is leaking.

Hello, happy to answer your questions.

Wuling Rongguang's noise and sound is mainly ** line slag in several places with a lack of absolute, one is the sound insulation effect of the car is not good, the second tire noise, three is whether the exhaust system is leaking.

The generator burned out, and after it was repaired, it buzzed when it was above 60.

Inspect the lower bearings.

Not walking after a fire is a normal sound, and the 60-horse rear neutral glide is also buzzing.

Less than 50 horses are driven without a buzzing sound.

If the car engine is broken, you need to look at the specific damaged parts, such as whether there is a problem with the cylinder block and cylinder head, or only say that the width needs to be overhauled, simply change the piston, valve, etc.

You can slide in neutral and turn off the ignition to see if it doesn't make a sound.

It's not easy to operate!

80 yards directly turned off the engine to him.

There's another way to look at it.

First determine if it is a chassis.

I'll check it out.

If I can help you, please give me a thumbs up Thank you!

According to the above-mentioned models and use phenomena, this is a normal rotten, is the relationship between engine torque and speed ratio, that is, what we call the engine resonance phenomenon, in this case, it is recommended that you change the engine shift time and then try, there should be a good improvement, and the so-called best shift time, in fact, is to let the engine run as much as possible in this optimal speed range, and this range, often in the technical parameters of the maximum torque of the speed range near the knowledge. This trade-off is not exactly the same for different engines, so the timing of shifts is not exactly the same. Completely look at the maximum torque of the speed is not necessarily scientific, some engines although the maximum torque of the speed is very high, but often 2500 rpm has enough (90) more than the torque output, at this time there is no need to dogma to hit the old speed leakage before shifting.

It can also be based on the feeling of actual operation, if you feel that the engine is weak after changing gears, it must be too early to shift gears. When the car is still full of momentum after changing gears, the lowest speed that can achieve this effect is the optimal shift speed for the whole car.

The most effective way to solve the high-speed noise of the car is to use the sound insulation material of the car to dampen and seal the sheet metal of the car, improve the defects of the horn installation environment, restore the sound pressure and sound quality effect of the car audio, reduce the noise transmitted by the car sheet metal structure and improve the driving comfort, the car sound insulation project is not only sound insulation, but also can effectively block the high temperature generated by the engine work, improve the air conditioning effect, the body cover, door, trunk compartment, roof, fender in the non-key parts of the sheet metal sheet are relatively weak, With the addition of sound insulation, the body is stronger, and in the event of a collision, the passive safety factor is improved. In particular, the subwoofer installed in the rear causes the trunk to vibrate and reduce the sound effect, because the structure of the car cannot withstand the impact of the super bass and make a "squeak" sound without proper shock absorption. After the sound insulation construction, the resonance of the body metal is eliminated, and at the same time, it has a good sound absorption effect, and the sound can be felt more clear, rich and surging.

Hazards from car noise:

The impact of car noise on human health is manifold. Noise acts on the central nervous system of people, causing the balance of excitability and inhibition in the cerebral cortex to be out of balance, resulting in abnormal conditioned reflexes and damage to cerebral vascular tone. These physiological changes can be restored to their original state in the early stage, but over time, they will lead to pathological changes, causing people to have symptoms such as headache, brain bloating, tinnitus, insomnia, memory loss, and general fatigue.

If a pregnant woman rides in a noisy vehicle for a long time, the noise will affect fetal development by acting on the central nervous system.

Hello, adding sound insulation is the only way, of course, you can also try to change the tires. If my answer is helpful to you, please set it to.

Answer Wuling Hongguang S to eliminate noise, it is recommended to check whether the firewall is leaking, and then see if there is any air leakage in the intake and exhaust pipes, or if it is damaged, and then look at the screws of the chassis and not loose, if the noise is loud during driving, do firewall sound insulation and engine compartment cover sound insulation, the effect is more obvious.

Make a soundproof suit for the whole body of Hongguang S, add soundproof cotton to the car door panel, engine front cover, car trunk, and floor, which is equivalent to putting on a soundproof jacket for the entire body of Hongguang S, which can effectively reduce the noise transmitted from the outside world to the car, and the effect is quite obvious, the worst thing is that the whole set is a bit expensive. It should be noted that it is necessary to find a more professional master to install soundproof cotton, if the installation is not good enough, the car is prone to abnormal noise.

It's all right. How much does it cost to ask.

Answer: Wuling Hongguang V does double-layer sound insulation for the whole car, and the contractor and materials in the physical store are about 3,500 yuan If you have a strong ability to do it yourself, only use materials, and then build it yourself, the material cost is about 2,000 yuan The whole car generally includes: hood part, front fender part, door, body side wall steel plate, vehicle floor, rear tailgate.

This is normal, Wuling Hongguang high-speed noise is relatively large, and the sound insulation effect of the whole vehicle at high speed is general.

Low-end people are like this! My Hongguang, I have measured it myself with a noise meter, at 100 miles, the noise in the car is 67 decibels! It's huge! There's no way, because it's a low-grade car, and it's definitely not going to be done!

Hello friends, this is normal, Wuling Hongguang high-speed noise is relatively large, and the sound insulation effect of the whole vehicle at high speed is general; Reference.

The new car is very normal, because the new car needs to run in, the sound of the engine is relatively loud during the run-in period, because, during this period, each part of the engine is just in the best state, so the sound is a little loud, this is not a fault, if it is after the run-in period, then there are many problems, it is best to send it back to the 4S shop for testing. Hope to adopt.

Hello, this can only be done for the whole car soundproofing, I hope it will help you.

Hello dear! It can be soundproofed! Hope it helps, please set it up! Thank you!

Hello, if you can't stand it, it is recommended to do the whole car soundproofing.

What is louder? Please specify? Thank you!

Summary. Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions!

There is noise when Wuling Light is slow, and there is no noise when it is fast, which is generally caused by tire wear.

It is recommended that you go to the repair shop to check whether the tire is deformed and worn, and then replace the tire with it. Tire deformation and wear are generally abnormal noise at low speed, and no abnormal noise at high speed.

After changing the tires, it is recommended that you do a tire dynamic balance and four-wheel alignment to avoid tire shaking and tire eating.

Hope mine can help you!

Wuling light is slow to open and noisy, but there is no fast driving.

Hello, this question can give you a perfect reply, wait for me to sort out the information, I'm typing, 2-3 minutes, don't finish.

If you drive slowly, there is a buzzing sound, and if you drive fast, you can't.

Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions! The relevant scheme is as follows: Wuling Light has noise when it is slow, and there is no noise when it is fast, which is generally caused by tire wear.

It is recommended that you go to the repair shop to check whether the tire is deformed and worn, and then replace the tire with it. Tire deformation and wear are generally low-speed abnormal noise, high-speed no abnormal noise, after changing the tire, it is recommended that you do a tire dynamic balance, four-wheel alignment, to avoid tire shaking and tire eating, I hope mine can help you!

Pull it down! The ESC is very stable, and there is a high possibility of problems with the sensor, so find the manufacturer during the three-guarantee period, and find the repair shop outside the three-guarantee period.