The car suddenly made a strange noise, what happened?

If you hear the abnormal sound of "Zizi" in the process of driving, and this is the abnormal sound caused by the problem of the engine belt, because the abnormal sound of "Zizi" is mostly the aging of each belt group of the engine, or the belt is too loose caused by the problem of the tensioner, the friction abnormal sound, belt slippage, etc., if there is a similar "Zizi" abnormal sound, then look for the major belt groups and tensioners inside the engine, such as engine timing belt, generator belt, circulating water pump belt, air conditioning belt, power pump belt, etc. The problem that causes this abnormal noise is the abnormal sound of the engine belt, which is caused by the smooth grinding surface of the joint surface of the belt and the pulley. It usually occurs when the engine speed changes rapidly, and sometimes the belt rings when the load of the attachment driven by the belt increases.

How to solve the problem of abnormal noise of engine belt.

1. Check whether the accessories driven by the belt are damaged, stuck, loose or the power of the accessories has increased.

2. Replace the belt, or use 100 gauze to polish the joint surface of the pulley and the belt (light grinding is fine).

3. The temporary solution can be to drop 1 2 drops of oil on the joint surface of the belt and the pulley (it will not affect the belt slippage).

If it is the generator belt that rings and the headlights are more obvious, you have to take off the generator belt, turn the motor pulley to see if the generator rotates smoothly, if the generator is normal, you can check whether the battery is not stored power, because the battery storage is not good will increase the load of the generator.

This may be that the chassis tie rod of the car is loose and has a gap, it is recommended to check it.

It may be that the screws are loose.

Abnormal body noise is caused by long-term driving wear and tear, oil stains or vehicle damage. The repair should not be limited to the sheet metal process, but also need to consult the relevant technical information and consider it comprehensively.

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.

Tips for solving car noises.

What is the reason for the abnormal noise in the front wheels of the car.

1.The cam is worn excessively, and the tappet jumps during operation; 2.Excessive valve clearance due to wear or improper adjustment of the valve stem end and adjustment screw or rocker arm causes the swing arm head of the overhead valve to collide with the top of the valve; 3.

excessive carbon deposition in the valve guide; 4.The valve spring seat falls off; 5.Hydraulic tappets or tappets are damaged.

Abnormal noise**1: storage compartment. I believe that most car owners do not have the habit of tidying up the storage compartment, the car has not been sorted out for several years The storage compartment must be full of messy items, so that no matter where the car is driving, as long as the engine opens the storage compartment The items in the compartment will follow the engine "beating", and the abnormal noise you hear is likely to be the vibration of the storage compartment.

In fact, it is very simple, everyone only needs to observe that when the speed increases, the louder the sound, it proves that the car transmission system is faulty. The most effective solution is to see if the car tires have a puncture, if there is, it is recommended that you go to a regular car 4S shop for maintenance.

Abnormal noise**3: abnormal noise outside the car. If the abnormal noise heard is from outside the car, we should first look at whether the doors and windows of the car are normal, and at the same time see if there are things in the trunk.

In addition, you should also check whether there is any debris around the wiper, and clean it up in time if there is one, so as not to affect the normal use of the wiper.

You must know that the service life of car pulleys is about eight years, and if you have not replaced the car pulleys for more than eight years, it will make a "cough" sound in the cold winter. If you want to change the pulley, it is recommended that you go to a regular car 4S shop to replace it, and do not do it yourself, otherwise improper operation will cause damage to the car.

First, the engine abnormal noise and the rear axle abnormal noise discrimination, first of all, the car on the flat road to a certain mileage, so that the rear axle working temperature rises to normal, and then when the car driving abnormal noise, note the speed, after stopping, put the transmission in the neutral position, and then slowly accelerate, until the speed of the engine is equivalent to the speed of the abnormal noise, observe whether there is abnormal noise, can be repeated several times, to determine whether the abnormal noise is caused by exhaust or abnormal conditions of the engine.

Second, the difference between tire noise and rear axle noise, tire noise changes with the road surface, but the rear axle noise is not.

When the speed of the car is below 48kmh, the rear axle noise disappears, while the tire noise continues.

The noise of the tires is the same when the car is driving and coasting, but the noise on the rear axle is different.

It is recommended to go to a 4S shop or repair shop for an inspection and drive with confidence.

If the shock absorber fails, replace the top pressure bearing and it will be fine. At the same time, look at the top of your shock absorber (whether the body connection is flat) A lot of cars squat when they are over-chopping, which is easy to cause plane deformation, large steering resistance, and abnormal spring rattling.

1. Wiper blade aging: two wiper blades are rubber products, which will be aged and hardened after a period of time, and it is more significant in winter. Most wiper blades are recommended to be replaced every one to two years.

2. There is a foreign object in the middle of the wiper blade: when the wiper is opened, there will be a sharp sound of friction between the wiper blade and the front windshield.

3. The installation angle of the two wiper arms is wrong: it will affect the wiper blades to jump on the windshield, then it will cause a sound. If the two wiper blades are normal, you need to adjust the angle of the wiper arm so that the two wiper blades are perpendicular to the windshield plane.

In fact, the car is so big, just by the landlord's statement, can not be sure that it is sent somewhere, and in winter, the shrinkage gap of each part of the parts becomes larger, generally there will be abnormal noises, but there may also be abnormal noises such as shock absorption, it is recommended that the landlord go to the 4S shop with professional repair personnel, listen to the specific ** issued, in case it is a quality problem. Such as satisfied.

1. The engine has abnormal noise.

Symptom description: There is a lot of abnormal noise in the engine compartment, and most people also judge it to be the abnormal noise of the engine compartment by the sound**, which is usually a metal screeching sound or a howling sound.

Solution: The abnormal engine noise indicates that the technical status of a certain mechanism of the engine has changed. It is mainly caused by excessive wear and tear of some parts or improper assembly and adjustment.

Some abnormal noises can still predict that the engine will be damaged accidentally, so when the engine has abnormal noise, it should be repaired in time to prevent the fault from expanding.

It should be reminded that if it is an abnormal noise in the engine, most of the owners will not be able to solve it by themselves, and it is best to send it to the factory for maintenance.

2. There is abnormal noise in the gearbox.

Symptom description: If there is a "rustle" sound inside the gearbox while the car is driving, and there is no more after pressing the clutch or accelerator, there will be a whistle-like sound when changing gears.

Solution: There are many transmission parts, and the reasons for the sound are more complex, so we should pay attention to whether it is related to a specific speed, such as some planetary teeth that sound at about 50km h.

Whether it is related to certain gears, which is very important for judging the failure of the transmission, if a certain gear sounds, it must be related to the components that affect the transmission of the gear; If all gears sound, it is often a common meshing shaft failure or a lack of oil in the transmission. Whether it is related to specific actions, such as increasing and decreasing gears, starting, rapid acceleration, sharp deceleration, turning, etc., are effective means to judge abnormal noise, among them, changing speed and direction are particularly important for judging the rear axle fault.

If the abnormal noise of the transmission is obvious, it is recommended to send it to a professional repair shop to check the faulty parts, and then replace them.

3. There is abnormal sound of wear.

Symptom description: When driving on the accelerator or brake, there is always some abnormal noise in a certain part of the body, the sound is not loud, and it does not affect normal driving, but it always makes people worry a little about the failure of the body.

Solution: The abnormal noise of the door is mainly caused by the lack of lubrication, but it is necessary to judge whether it is the position of the door hinge or the glass regulator, door lock mechanism, handle mechanism, etc. inside the door. In the case of door hinges or limiters, special door hinges and slide grease can be used, while special door attachment grease is used for lubrication of glass regulators, door locking mechanisms, handle mechanisms, etc. inside the door. In terms of brand selection, try to choose the commonly used brands in 4S stores, such as German Marty, Kluber, Tiger Head Hotolube, Fox, etc.

It is not advisable to use engine oil or ordinary butter, it will freeze in winter, and the harmful smell will affect your health.

Perhaps, rubber and plastic products are easy to harden in winter, and abnormal noises will occur if there is a gap in the adhesive part.

Inside or outside the car, there is no big problem in the car, it belongs to the pedal friction noise, and the outside of the car is the sound of the gearbox clutch system, which needs to be checked and judged by the master on site!

In the process of driving, especially after driving for a long time, it is inevitable that there will be all kinds of abnormal noises, some of which are caused by the power part, and this part of the abnormal noise needs to be disassembled and repaired to be solved, but there are also some abnormal noises that are actually caused by the non-power part, for example, the abnormal noise of our car interior, if this abnormal noise occurs frequently in the driving process, it can be said to be very annoying, especially when the car stops, it will not sound, but as long as it is driven, it will ring. Some of them don't make a noise when driving smoothly, but they sound as soon as they cross a bad road, and some of them are even more nonsensical, making an abnormal noise when they reach a certain speed.

Answer: Abnormal brake noise: The brake pads may be stained with fine particles and foreign bodies, resulting in abnormal noise during braking, and the gap between the brake caliper and the brake pads is too large and too small, which is also easy to cause brake system noise.

Abnormal engine noise: It may be that the oil is poor, or the long-term low-speed operation leads to carbon deposits on the throttle, which will cause the valve to ring, and the throttle should be cleaned in time.

The car itself is composed of many metal parts, and each part will definitely wear out during operation, and there will be abnormal noise when it is worn to a certain extent. In addition, there will be a normal sound during operation. Therefore, for abnormal noise, it is still necessary to check it in time.

The car has an abnormal sound when it ignites, and the vehicle can be started normally. 1. The sound of the timing chain. 2. Insufficient lubrication during cold start, friction sound of metal parts.

3. The sound produced by the motor belt slipping when the cold car starts. You can look at the tightness of the motor belt to see if there is any aging.

Engine: Whirring is a problem with the bearing, squeak is a problem with the starter or belt;

Gearbox: The click sound means that there is a problem with the gear, the rustling sound is the problem of the bearing, and the click sound means that the gearbox is seriously damaged;

Brakes: The sound of metal friction indicates that the brake pads need to be replaced;

Steering system: A rattling sound indicates a problem with the steering ball joint or rubber sleeve.

The main reason for the "buzzing" sound of the vehicle in driving is that the air pressure of the tire is relatively high, and there is abnormal wear, so it is necessary to adjust the air pressure of the tire to the normal range to avoid problems with the tire at that time.

There are abnormal noises in the car, such as abnormal engine noise, abnormal brake noise, etc., some of which are problems with key components, while some can be artificially avoided. Therefore, if there is an abnormal noise, it must be carefully investigated and repaired as soon as possible to ensure the safety of the vehicle.

The engine guard makes an abnormal sound, and the screws tend to displace on a car that is constantly moving, and if you often hear a "pop" sound like a "pop" from the position of the air intake grille.

Well, the reason why the car will appear is due to which one is damaged, or loose, of course, the damage is loose and bad is the lack of lubrication society.

Many people have encountered abnormal noises when driving, and I believe that many people have chosen selective shielding in the face of this situation, pretending not to hear, and it will not affect driving anyway. That being said, you can't just ignore it all the time. The abnormal noise of the vehicle must indicate that there is a problem with the vehicle itself, and if there is a problem, it must be solved and disposed of.

Here I will introduce to you several situations and how to deal with abnormal vehicle noise.

After cleaning the carbon spark plug, the impact on the car is very large, it can reduce the engine power, increase fuel consumption, and in serious cases, it will also cause vehicle detonation, increase abnormal noise, cause huge damage to the piston and crankshaft, and finally you can burn oil before your engine needs to be overhauled, if you listen to the sound of the horn while driving, the vehicle shakes, and hears the sound of collision, it may be that the tire burst, or it may be mixed with stones or the tire is nailed.

Why does the car make abnormal noises? There is a fault with the engine.

When many car owners are driving, they are likely to find that their cars sometimes have some abnormal noises, and situations like this also make many car owners feel particularly nervous. After all, for many people, the car will not have some impact in daily life, if there are some abnormalities or abnormal noises found in the process of driving.