Hyundai Elantra has a squeak when changing gears

The reasons for the noise in the gear are improper operation, clutch failure, sprocket wear, and chain looseness.

On the issue of abnormal noise of automobiles, it is difficult for ordinary car owners to distinguish which ones are abnormal noises and which ones are reasonable abnormal noises. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises were really faulty. In the case of a turbocharged engine, there is a must be a difference between the sound and the sound of a naturally aspirated engine; Models with engine guards may also make noises due to friction; After some car owners come into contact with different cars, it is likely that they lack their own understanding of mechanical knowledge, so they can distinguish the abnormal noise of the car and avoid wasting time and energy.

Second, the identification method of car noise:

In practice, due to the limitations of working conditions, it is difficult to measure the sound of the car with special instruments, and the sound of the car can only be described and compared with the judgment of the sound in daily life. For example, the "rattle" sound caused by the dry friction of the bearing, and the "click" sound similar to the small hammer hitting the cement floor caused by the excessive valve clearance.

1. Correctly distinguish between normal and abnormal sounds.

The vibration of each mechanism in the work of the car will make a variety of sounds, but the sound does not mean that the car is faulty, in order to avoid unnecessary disassembly, we must first distinguish between normal sound and abnormal sound. The normal vibration sound of each cluster system component (such as the noise on the engine surface), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of loss of the grinding belt of the machine is not large, and there is no significant change for a long time, and this kind of fault can still maintain the normal driving of the car without repair.

3. When diagnosing abnormal noise, attention should be paid to creating good auscultation conditions and trying to eliminate the interference of other noises, so as not to affect the accuracy of judgment.

It is best to consciously amplify or reduce the sound, that is, use a screw or other metal rod as a stestological instrument to contact the sound part to amplify the sound, or use a single cylinder fire cut-off to reduce the sound to meet the diagnostic needs. The auscultation site should be kept quiet to minimize interference from human factors.

It may be that the clutch is not in the end, Yuedong has a reverse lock, or it may be that the reverse lock is not in place.

But in my opinion, this sound is normal, it is a normal collision between gears, and most cars will have such a sound when they are in reverse gear, so don't worry.

Hello! Glad for your question.

Loose chassis generally occurs in older cars, when the car is driving in bad road conditions, the steering wheel will feel unstable, the bottom of the car will also come out of the abnormal sound, usually the old driver can feel the overall a little loose, when encountering such a situation, it means that the chassis may be loose, and the reasons for this situation are divided into several, only by understanding the reasons, can we better prevent this problem from happening.

The first reason is the aging of rubber parts, we all know that the elasticity of rubber is particularly good, which can buffer the friction between parts and reduce noise at the same time. However, this kind of thing has a lifespan, and it will age after a long time, and the elasticity is not as good as before, so the buffering capacity will decrease, resulting in abnormal noise in each part, so it is necessary to check these rubber parts regularly and replace them in time.

The second possibility is the reason for the shock absorber, the main role of this part is to inhibit **, when the car is driving in the dustpan section, it will have an impact with the road surface, and the shock absorber can well ensure the smoothness of the car, if the shock absorber is damaged, there will be a scoop phenomenon, so that the chassis is loose, so usually check the shock absorber, if there is a leakage to repair in time.

The third is the clearance of the parts, that is to say, the ball head may be loose, this part is like the joint of the human body, if the ball head is loose, there will be a large gap between the lever and other connected parts, if the gap is too large, when crossing some dustpan roads, the screws between the subframe and the suspension will be loose, then the chassis will become loose, so usually check these two parts. Thank you.

Hello, if the chassis of the vehicle is abnormal, check whether the screws are loose, or the problem of suspension shock absorption.

Elantra turns to squeak and squeak.

Various possible causes of abnormal noise in the chassis of a car.

1. Abnormal sound of disc brakes.

Features: When the vehicle is driving at a low speed on a flat road, it makes an intermittent and irregular "rattling" sound on the axle.

Reason: This is due to the damage, deformation and falling off of the brake shoe support plate, vibration damping spring plate or guide plate of the disc brake, which increases the gap between the brake shoe and the brake caliper support frame, and makes a sound when it hits each other. You can go to the repair station to repair the deformed parts and replace the parts that have fallen off.

Second, the front suspension ball head abnormal sound.

Features: When the vehicle is driving on the undulating road surface in a low-speed gear, the front axle part emits an uninterrupted "click" sound, the worse the road quality, the louder the sound, and the sound intensifies with the increase of speed.

Reason: The gap between the ball head and the ball head seat becomes larger, and the looseness is severe. Because the ball head seat is a sealed structure and cannot be removed, it can only be replaced at the repair station in this case.

Three. Abnormal noise of the front wheel shock absorber.

Features: On flat roads, you can hear the "cooing" of the front of the vehicle, which is intensified when turning sharp corners.

Cause: Vehicles are often driven on bad roads and are not properly maintained, resulting in oil leakage and damage to shock absorbers. Depending on the severity of the damage, it will need to be repaired or replaced.

Fourth, the transmission shaft universal joint abnormal sound.

Features: If the front drive constant velocity joint is faulty, in the vehicle in motion, especially when cornering or accelerating sharply.

Reason: The abnormal sound of the constant velocity gimbal is due to the excessive clearance of the gimbal or the issuance of cards. The main reason for the abnormal sound of the universal cross shaft is that there is no lubrication device or the maintenance is not timely. In this case, you should go to the workshop to apply grease or repair.

When checking the abnormal noise of the automobile chassis, you should first distinguish whether it is the sound of the engine or the sound of the automobile chassis. Only when the engine is running, under normal circumstances, the engine has an abnormal sound; When the car is moving, there is still a sound when the engine is turned off, neutral or when the clutch pedal is stepped on. It may be that there is a noise from the chassis of the car.

1. There is a sound caused by resonance. Most of the noise is caused by the engine guard and chassis resonance. Most of the resonances in the chassis are easy to observe, and the resonance is not always there, and most of them will only have a sound in a certain speed range of the engine.

2. There is a problem with the rubber sleeve of the balance bar. The phenomenon is that when the car passes over uneven roads, the chassis will make a noise.

The balance bar is also called the anti-roll bar and the stabilizer bar, and there are two buckles on the balance bar, and the buckle is the rubber sleeve of the balance bar. It is cold in winter and hot in summer, and with the erosion of soil and dust, it will become harder and harder after aging. When the car passes over uneven roads, the height of the upper and lower wheels is inconsistent, which will cause a creaking sound.

3. There is a sound due to loose bolts, such as loose bolts at swing arms, connecting rods, shock absorbers, etc. The reason is simple, it should be a fastener but it is not tightened, and it will naturally shake and cause a sound.

The reasons for the abnormal start noise of Hyundai Elantra cars: 1. Internal problems of the gearbox, such as excessive wear, resulting in clearance, and there will be an open space at the start; 2. The gearbox oil is dirty or the oil level is too low, resulting in a large shift impact; 3. The valve body of the gearbox is faulty, resulting in uneven gear shifting; 4. The front-wheel drive vehicle may be the front drive shaft, or the cage has too much space; 5. The transmission shaft is loose or the universal joint is faulty.

Elantra automatic transmission, when the speed reaches 130-140 kilometers, there will be abnormal noise. I have been to the 4S shop, and the repair staff did not find any problems, it is certain that this is not the sound of wind noise, it should be the sound of the machine, but it does not affect the use of the car, I don't know what the reason is.

Expert: From the experience of maintenance, after the speed of the car is high, there will be a sound of oil flowing, like the gearbox, the engine, this sound is very slight, not careful listening is inaudible, if it is this kind of sound, it is normal, you can not repair, but it must be noted that this sound can not become louder. If it is a new car, just start using it, driving no more than 3000 kilometers, you can drive for a period of time to see if this sound is gradually getting smaller.

Sometimes a new car needs to be run-in, and maybe this sound will get quieter and quieter. But if the sound is getting louder and louder, and it is the kind of iron hitting iron sound, you must go to the 4S store to find out what the reason is.

Expert: The engine of the Elantra has less torque at low speeds, and the gearbox of all cars produces some resonant sound at low speeds. This sound is not considered a fault, but when the torque increases, the gear noise generated by the gearbox, and if you want to overcome this noise, the speed is slightly lower when you start.

Photo by Pacific Automobile Network Q&A).

Here's why:There are mainly the following reasons why a car creaks over a speed bump:

1. Aging of the ball head of the balance bar boom: After long-term use of the car, there will be the aging of the ball head of the balance bar boom, resulting in a creak when passing through the speed bump.

2. The gap between the ball head of the tie rod of the steering machine is too large: the gap of the ball head of the tie rod of the direction machine is too large, which can also cause the car to creak when passing the speed bump.

3. Damage to the buffer parts on the chassis: The buffer parts on the chassis are damaged, and there will be abnormal noise when passing through the speed bump, which may be caused by the abnormal rubber buffer block on the balance bar, which is also an important reason for the abnormal noise of the vehicle through the speed bump.

Summary. Hello friends, attention.

The reasons and solutions for the abnormal noise in the P gear are as follows:

1. According to the structural form of automatic transmission, this sound is also normal, P gear is designed as a parking gear, the principle is a brake claw, stuck ring gear, ring gear as long as there is a gear position, the structure of this P gear lock car is caused by the mutual cooperation of the gear and the lock pin work on the output shaft inside the transmission, so there is a function that can not move before and after the vehicle can not be hung into the P gear, and the greater the slope, the more the force is appropriately increased.

2. For this case, you can first stop the car and pull the manual brake (handbrake) and then hang into the P gear, the effect will be better. Secondly, in this case, it is recommended to test the performance of the engine pawl, if the performance is reduced, the above phenomenon will be caused. I hope mine is helpful to you and I wish you a happy car!

Thank you. Why did the new 21 Elantra cars have abnormal noises after hanging the P gear and N gear.

Hello friends, pay attention to the reasons and solutions for the abnormal sound of the P gear as follows: 1. According to the structural form of the automatic gear, this sound is also normal, the P gear is designed as a parking gear, the principle is a brake claw, stuck ring gear, as long as the ring gear has a gear position, the structure of the P gear lock car is caused by the mutual cooperation between the gear and the locking pin on the shaft of the internal output key of the transmission, so it has the function that the vehicle can not move before and after the P gear, and the greater the slope, the more the strength is also appropriate. 2. For this case, you can first stop the car and pull the manual brake (handbrake) and then hang into the P gear, the effect will be better.

Secondly, it is recommended to test the performance of the engine pawl, which will cause the above phenomenon if the performance is reduced. I hope mine is helpful to you and I wish you a happy car! Thank you.

Hang D and R and disappear immediately.

I just bought a new car less than a month ago, and I didn't have it at first. Is this normal?

If you hang up to the n file, of course the r file will not be displayed. This is not a problem, nothing is wrong.

I mean, the squeak disappears when you hang up to D and R.

If you are not at ease, I suggest you go to the after-sales service of the 4S store and let a professional person give you a good inspection of the vehicle. I think it's doable.

It may be that the steering gasket, steering joint or steering machine failure may cause abnormal steering noise, in order to avoid affecting the use, it is recommended that you contact the after-sales service for corresponding maintenance.

It should be that the compressor has an abnormal noise.

1 is that the belt tension is not enough, and you can adjust it.

The second is that there is a problem with the clutch of the compressor, and the sound made when it is suctioned, if it is, it has to be replaced.

The ball head of the lower limb arm is broken, or the rubber lining of the lower limb arm is broken. Hope.

The abnormal noise of this car is not serious, and there are not many shortcomings. Overall a very good car. It was a car that I liked very much.