Abnormal braking sound
Let's talk about abnormal braking first, because Dong Jun Jr. thinks this is directly related to the driver's safety, which is particularly important. Secondly, it is also one of the common abnormal noises. Especially after new brake discs or after rain. When you step on the brakes, you can obviously hear the "squeaking" metal friction sound. There are generally two kinds of sounds. First, if it is a new brake disc, it may be that the brake disc is running in. Second, the brake disc is old, which may be caused by rust or serious wear. In this case, the owner can slam on the brakes a few times to see if there is any relief. If the situation remains the same, please check the brake disc.
Abnormal sound of car body
The source of abnormal car body noise is the hardest to find, because all parts of the car will produce * * * vibration. Let's find some common problems pointed out by some experts. The first reason for the abnormal sound of the car body is that the rigidity of the car body is not enough, which leads to the deformation of the car when driving. The second possibility is the assembly process, the friction or jitter between the door and the door frame, or the friction between the steel plates, which is caused by the desoldering in some places. Thirdly, the wind noise of some cars is relatively high, which is related to the shape design of the car to some extent.
Moreover, simple friction noise can be basically solved by finding a professional to repair it. But the abnormal noise caused by the essential design and structure of those factories is helpless. Otherwise, change trains!
Abnormal noise of steering wheel
When there is abnormal sound in the middle of the direction, it can basically be judged that the steering gear is abnormal. It is possible that the balance of the internal directional transmission device is broken, or the transmission shaft and spline shaft are excessively worn. It is difficult to judge whether your steering wheel is abnormal or not, and whether it makes a "giggle" or "zi zi" sound after being killed. However, one thing you can be sure of is that you have to fix it quickly, otherwise this kind of problem will accumulate more and more seriously. It could have been solved with a small part, but it was your wallet that was delayed until the Year of the Monkey!
Hanging abnormal sound
In fact, there are many reasons for abnormal noise of suspension, and it is also easy to be confused with other abnormal noises. It depends on whether you are an experienced old driver. If not, I'm not afraid. Little Dong Jun will teach you a trick. If there is a "creaking" sound under the chassis, it is mostly the sound of damping springs. If there is a "knock" or "click" sound around the wheel when driving on a bumpy or bumpy road, it is likely that the shock absorber or suspension components are faulty. At this point, it is best to go to the car factory or 4S shop for maintenance as soon as possible. The old driver will not be able to deal with this problem for a while. Driving on the road, safety first!
Abnormal tire noise
When the automobile tire touches the ground, it will produce various noises with different intensities due to the road surface condition or concave-convex state, vehicle speed, tire pressure and other reasons. Therefore, no matter how perfect the car is, it can't completely eliminate the noise generated by tires and the ground during driving.
In addition, we can judge the cause of abnormal tire sound according to the sound. Stop worrying, put down the window glass and listen carefully. If it is a low "snapping" sound, it is mostly caused by tire tread deformation, serious wear or insufficient air pressure. If it is a "click", it may be that the tread is mixed with pebbles. If the tire whirs, accompanied by obvious vibration or even direction deviation, it goes without saying that it must be a flat tire. All this common sense must be prepared, and the old driver is the carefree person.
What is the highest risk factor of common abnormal car body noise?
First, the body is abnormal? (Danger factor ★)
The most common abnormal noise when driving mostly occurs on the car body, such as driving on a bumpy road or riding one wheel on the shoulder. Because of the different forces, the body structure will be distorted to some extent with the sound of metal distortion. Some will also affect the normal closing of the door, which is normal and will not affect normal driving.
Second, the brake abnormal sound (risk factor★★)
If there is a hissing sound when we step on the brakes, it means that the brake pads are badly worn and need to be replaced in time. Under normal circumstances, the service life of the front brake pad is 30,000 kilometers, and the service life of the rear brake pad is usually120,000 kilometers. Of course, the use of each car is different, and the wear of brake pads will be different.
Three. Pause abnormal sound (danger coefficient ★★★).
As long as the car is running, the suspension system will always be in working condition. If the rubber sleeve is aged or falls off, there will be abnormal metal knocking sound or impact sound, and driving on the rugged road surface may be accompanied by abnormal sounds such as "knocking sound" and "clicking sound". This situation must not be careless. You must go to a 4S shop or a regular repair shop to replace parts to avoid more problems.
Four. Abnormal tire sound (risk factor ★★★★★)
The common abnormal tire noise is mostly tire noise. If there is a "snapping" noise during driving, stop to check whether the tires are leaking, deformed and bagged. If there is a "click" noise, it is mostly caused by foreign objects such as stones or nails entrained in the tire gap. If the tire has reached the service limit, it must be replaced in time to avoid a puncture accident during driving.
Verb (abbreviation of verb) Abnormal sound of steering wheel (risk factor ★★★★★).
If there is a "bang" abnormal sound on the steering wheel when turning left and right, it can basically be concluded that it is caused by the abnormality of the steering gear, and it is normal for the steering rod and the rubber sleeve of the ball head to rub due to aging. You need to go to a 4S shop or a regular repair shop to replace parts to solve the problem.
Abnormal sound of intransitive verb gearbox (risk factor ★★★★★★★ ★)
If there is a "rustling" sound in the gearbox during driving, it may be caused by the damage of gearbox bearings or gears during gear shifting. If there is abnormal noise during the speed increase, it is mostly because there is powder in the gearbox, which leads to overheating of the clutch and other components. In this case, you need to go to a 4S shop or a regular repair shop for maintenance.
Seven. Abnormal sound inside the car (risk factor ★)
Abnormal noise in the car is the most common, which mostly occurs in the interior, such as seats, door seams, panel seams, armrest boxes and other parts. Generally, because the parts are not firm or loose, you can fill the gaps with soft substances to reduce the gaps, or you can take them apart and reinforce them in the decoration shop.
Eight, engine compartment abnormal sound (risk factor ★★★★★★ ★)
We usually pay attention to the engine timing belt. If there are screams when starting the car, it is mostly caused by the aging of the engine timing belt and needs to be replaced in time. Of course, due to the dense layout of the engine compartment, the abnormal sound may also be caused by the damage of the generator and water pump, the rupture and blockage of the vacuum tube, etc. It is suggested to find out the cause of abnormal noise before driving on the road to avoid accidents.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.