What s going on with a car buzzing above 40?

Let's start with axle bearings.

Half-shaft cage. Differential bearings.

It could be the reason why you added too much throttle.

The faster the car buzzes above 40 yards, the louder it becomes, which may be the tire noise of the car's tires, and the sealing of the doors.

If the bearings, tires, shockproof cotton, and exhaust pipes are checked, they still can't be solved. It may be the resonance caused by the friction between the spare tire hub and the metal on the ground. You can turn the spare tire over and the sound will disappear.

Identifying Wheel Bearing Failures:

1. Sound: The wheel bearing is worn, and the driver can distinguish it from the sound of the wheel. One manifestation of a bad wheel bearing is the rumbling noise. Noise tends to make the speed at which the vehicle is traveling louder.

2. Vibration: Accompanied by a rumbling sound, the vibration sound of the broken wheel bearing can be felt in the car or on the steering wheel. At higher speeds or when cornering, this noise will be even greater.

This situation is generally due to the leakage of the intake pipe of the engine, or the air filter is not installed in place, and the vacuum pipeline falls off, which will occur during driving, and it is necessary to do an inspection to ensure that the intake pipe is reliably sealed to return to normal, and timely maintenance to ensure that the driving is stable, comfortable and safe.

Bearing ablation causes a buzzing sound:

1. You run the car to 80km, and then slide in neutral gear, listen carefully, if the sound becomes clearer, it can be judged that there is a problem with one of the four wheels.

2. If the neutral gear slides and the sound disappears, it is generally a bearing failure of the engine, and the ablation of the bearings in the engine is generally a water pump, generator, and tensioner.

3. If the above situation is not a problem, the car has to be sent to the 4S shop for maintenance to find out the reason, because it is likely to be the sound of the transmission, which is more troublesome and more expensive to maintain.

1. Tire pressure is too high

If the tire pressure of the car tire is too high, the area of the car tire in contact with the ground will be reduced, and it is easy to cause buzzing noise, so you need to adjust the tire pressure of the car when driving, especially if the tire pressure of the car is too high, there will be a risk of puncture, driving safety can not be guaranteed, and if the tire pressure is too high, the comfort will also be affected.

2. Abnormal wear and tear of automobile tires

When the tire is abnormally worn, it is easy to buzz, because the tire is uneven, and the contact area of the ground is different, and the car tire will also rub against the ground, so there will be abnormal noise, if it is because of the abnormal wear of the tire caused by the buzz, the owner needs to deal with it in time to avoid greater car failure caused by the abnormal wear of the car tire.

3. Wheel bearing damage:

Due to the long period of use, the wheel bearings may be worn, and even the buzzing phenomenon will occur after excessive wear.

After the abnormal noise in the car needs to be dealt with in a timely manner, do not drive a car with potential safety hazards on the road, easy to break down, there is no good guarantee for driving safety, in the daily driving process, you need to maintain and inspect the car in a timely manner, find abnormal conditions and repair them in time, if you can't solve it, go to a professional repair shop or 4S shop to deal with it.

First of all, determine the location of the abnormal noise! If the car can be lifted with a lift, one person is in gear in the car, and the other person is under the car to judge the abnormal noise.

If the squeak occurs near the tyre and the wheels and bearings have been eliminated, then there is a possibility that the brake pads and brake discs are rubbing against each other. Generally, the abnormal noise of the brake pad is mostly due to the friction with the brake disc caused by the hard points of the brake pad, and the noise can be ignored if the sound is small; If the noise is loud, you can remove the brake pads and polish them with sandpaper before reinstalling them, and most of them can be solved.

If the sound is at the junction between the gearbox and the engine, it may be an abnormal sound caused by damage to the clutch plates and release bearings. If it is inside the gearbox, then the abnormal noise may be due to abnormal wear of the first and second gear gears.

It should be reminded that repairing a car is the same as seeing a doctor, and it is also important to find an experienced maintenance worker, so that you can definitely avoid detours and shorten the maintenance time as much as possible.

If the problem is locked in the tire, the 4-wheel alignment will indeed affect the tire noise, but before the tire eccentricity problem occurs, the deviation of the 4-wheel alignment will not affect the very large tire noise, and the tire noise is still the following: tire pressure, tire width, tire material, tire tread shape, and the width of the tire tread groove.

The higher the speed, the louder it is? Or is it constant? Or is it not working, the engine revs up, and the hum is loud?

This means that the first thing to distinguish is the sound of the engine part or the sound of the driving system, and the engine part is generally a variety of pulley bearings.

The travel system is generally a wheel bearing.

Did you switch the front and rear wheels until there was a sound? At this time, the tires have worn out and it is useless to replace them, only to change the tires. Generally, 10,000 kilometers should be replaced by front and rear rotations.

I also checked it several times, including the bearings, and finally found a problem with the tires. The bearing generally has to run to more than 50,000 kilometers, and the driving environment is not very bad and will not break down so quickly.

Generally speaking, there are two reasons why a car buzzes as soon as it reaches around 40. The first reason is that there is a humming sound because of the resonance phenomenon of the vehicle. Resonance can occur when the engine gasket is worn out or if the engine guard is installed in the vehicle and the engine collides.

The second reason is that the wheel bearing of the vehicle is damaged, such as the bearing is not lubricated enough, and there will be a buzzing sound when the friction is large, at this time, go to the 4S shop or repair shop to find a professional to replace the wheel bearing can solve the problem of the buzzing of the car speed to about 40.

What's going on with the buzzing of the car:

1. The gap between the piston and the cylinder wall is too large, which will cause a buzzing sound, and if the assembly is too tight and the wear is abnormal, there will also be a buzzing sound during installation;

2. The engine knocking will also cause the vehicle to buzz, which may be caused by serious carbon deposition in the cylinder or the ignition advance angle;

3. The bearing of the gearbox is worn or damaged. When the gearbox bearing is damaged, the clearance will increase, resulting in a decrease in the accuracy of the fit. When the gearbox bearing is damaged, the bearing can not work normally, and there is a buzzing sound during operation, and in serious cases, it will also lead to the loss of the transmission components in the gearbox, and the wear of the gearbox will be more serious.

There are not only these reasons for the buzzing of the vehicle when driving, but also the damage of some small parts can cause the engine to not function properly. When the owner does not understand, it is best to go to the 4S shop or repair shop to find professional personnel to solve it in time to avoid greater problems.

Summary. Hello dear, you have to determine whether the buzzing sound is the head, or the propeller shaft, or the rear tail pressure.

Hello dear, you have to determine whether the buzzing sound is the head, or the propeller shaft, or the rear tail pressure.

Front. Loose propeller shaft screws will make a buzzing sound. Rear tail pressure, gear wear also makes a buzzing sound.

Dear, is it from the engine in front?

Do you see if the fan of the engine's radiator tank is loose?

Anyway, when you run to the front of the 4o yard, it doesn't make a sound, and it doesn't sound at low speed! I opened the window and couldn't hear clearly.

Dear, you take a look here to see if the water tank fan is loose, it may also ring or the belt is loose.

Oooh! Last time I lifted the car up and checked the front two wheels, there was a little bit of clearance.

Could it be that the bearing is broken?

Dear, you have to make sure that the sound is coming from the **, if it is from the tire, it is possible.

Summary. Hello, this situation is generally a damaged bearing, it is recommended to go to the repair shop to check and replace it.

Hello, this situation is generally a damaged bearing, it is recommended to go to the repair shop to check and replace it.

It's all changed, and it's still the same ring? It's like the buzz of flying an airplane.

The mechanic said that it was a bearing problem, and the bearing was replaced, but it was still the same.

But when it comes to 60 yards and above, it is slightly better.

Is it 40 to 60 yards? The sound in the middle was very loud, buzzing.

There is no sound below 40 yards.

If the bearing is fine, then take the cover to check the tires, shockproof cotton, exhaust pipe, and Minbo take out the trunk to try. There may also be the resonance sound caused by the friction between the spare tire hub and the metal on the ground, and try to turn the spare tire over.

It should be that these problems are not his voice, it seems to come out of the engine compartment, I see, and this voice is not the noise of the engine, he must have a place that is damaged, it is really big.

Wait a minute, I'll check it out for you.

It is possible that the world is resonant. Recommendation: Check to adjust and tighten the connecting rubber and bolts between the engine, gearbox and the main frame.

If necessary, the soft connection can be reinforced to a close hard connection to change the resonance source alarm. At the same time, it is also possible to check the suspension of the rear axle section. To eliminate resonance, you need patience and some experience, but the car repair shop is generally reluctant to do this kind of work that is not easy to see, so it is recommended to do it yourself.

FYI.