What s the deal with the squeak in the back of the car?

Abnormal sound of the gearbox: If there is an abnormal sound inside the gearbox during driving, and it disappears after stepping on the clutch, it means that the noise** is a gearbox failure, which may be caused by the wear of the gearbox bearing or gear and bearing spots.

Abnormal tire noise: The tire noise must be rhythmic, and the fast speed of the car is high. If it is a low abnormal sound, it is most likely that the tire tread is deformed, lifted, worn seriously or the air pressure is insufficient, and if it is a clicking sound, it may be that the tread is mixed with small stones.

If the tires are whirring, and the body is obviously shaking or even running in the wrong direction, it should be a tire burst, and it is recommended to get out of the car and change the tire.

When the clutch release bearing is damaged, the clutch plate cannot be completely disengaged, which eventually leads to an abnormal sound during acceleration.

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 really had problems. 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 emit 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 noise. The normal vibration sound of each system component (such as the noise on the surface of the engine), 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 wear of the parts is not large, and there is no significant change for a long time, and this kind of fault can still maintain the normal operation 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 human interference.

I've changed everything I can, what else can I do? If the spring is not compressed and deformed, there will generally be no abnormal sound, but can the spring be deformed when driving?

Solution: 1. No matter what "abnormal noise", find the problem, repair it in time, and do not delay, which is the premise. 2. According to the results of the inspection, timely treatment, repair and fixation of relevant faulty parts or personnel reasons such as missing, reverse installation and unfastening.

Eliminate potential safety hazards.

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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 may be abnormal noises in the back of the car:1

If there is an abnormal noise on the road, it is an abnormal sound such as bearings or brake pads! 2.If it is an uneven road, the abnormal sound is shock absorption, and there is a loose abnormal sound of the swing arm ball head and the balance rod ball head or rubber sleeve!

Solution: Lift up, turn the tires, and check the bearings for abnormal noises. Use a crowbar to inspect all ball sleeves for damage or looseness.

If there is looseness or abnormal noise, give priority to replacing the faulty parts for the next step of troubleshooting!

There are always so many small problems in the process of daily car use, which only the owners of long-term use know. Small problems are the problems of any car, although it does not affect the normal driving of the vehicle, but it is very annoying, and the most annoying of them is the abnormal noise of the car.

This depends on the fact that your abnormal noise is sent from **, and it is recommended that you go to a local professional repair shop to check it.

The following are the reasons for the abnormal noise behind the car: 1. The body stiffness is not enough: it causes the vehicle to be deformed during driving, and the friction between the door and the frame or shaking, or the dewelding in some places, resulting in friction between the steel plates.

2. Engine belt slippage: generator, water pump, steering power pump bearing damage. 3. Bearing wear:

Caused by wear of transmission bearings or gears, bearing spots. 4. Loose components: caused by the failure of the shock absorber or the loosening of the suspension parts.

2. For example: some MPV models, SUV models and brigade cars are prone to noise behind the trunk of these cars, and the interior panel may resonate and make a sound.

What's the reason for the abnormal noise in the back of the car? What's the reason for the abnormal noise in the back of the car? Here are the reasons for the abnormal noise in the back of the car:

1. Insufficient body stiffness: it leads to deformation of the vehicle during driving, friction or shaking between the door and the frame, or dewelding in some places and friction between steel plates. 2. Engine belt slippage:

Generator, water pump, power steering pump bearing damage. 3. Bearing wear: caused by gearbox bearing or gear wear and bearing spots.

1. Normal condition: It is normal for the car to have a sound behind it, especially the empty rear of the trunk of the car is easy to cause noise. 2. Examples:

Some MPV models, SUV models, and brigade cars are prone to noise in the back, and the trunk of these cars is not placed, and the interior panels may resonate and make noise. It is normal for the rear of the car to have abnormal noises, especially when the trunk of the vehicle is relatively empty, and the rear is most likely to produce abnormal noises. Some MPVs, SUVs, and station wagons are the most prone to squeak and squeak in the back.

When the trunk of these cars is not stocked, the interior panels may resonate and make abnormal noises. The back of the sedan is also more prone to abnormal noises. Most of the squeaks are caused by loose interior panels, and there are also models that reach a certain speed when the interior panels are in 2019