There is a sizzling sound when the car starts, and the reason why the car is sizzling in front of it

There may be three reasons why the car has a sizzling sound when driving: there is a foreign object between the brake disc and brake pads; The brake disparator pump is broken, and the caliper cannot be separated from the brake disc; Excessive wear of brake pads causes grinding iron and needs to be replaced in time.

There are many possibilities for failure in front of the car running, the most common reason is that the friction pads are worn thin, the brake pads automatically alarm, and the wheels need to be removed for inspection. If the brake pads are not thin, look at the wheels and the transmission half shaft near the wheels to see if there is something like iron wire entangled.

If the vehicle is not regularly maintained, it may cause problems such as wear of the movable pins of the brake calipers and falling off of the spring blades. Poor caliper reset will cause the disc to rub against the disc for a long time to make abnormal noise, and it is also necessary to check whether the brake disc is grooved, because local friction will cause abnormal noise.

In addition, the inaccurate alignment of the vehicle's four wheels will cause greater wear on the tires during long-distance driving, which will cause the tires to form eccentric wear and make abnormal noises. If you can feel the unevenness of the inner or outer pattern when you touch the tire pattern with your hand, it must be the cause of the abnormal noise. It is worth mentioning that cars will produce various noises of different intensity due to road conditions or uneven conditions, car driving speed, tire pressure, etc.

Therefore, no matter how perfect a car is, it cannot completely eliminate the noise generated by the tires and the ground during driving.

1. Rust of brake discs or brake pads 2. There will be a similar sound when a new car steps on the brakes, if your car is a new car or has just been replaced with new brake pads, then the new brake pads and brake discs need a run-in process, when the brakes are stepped on, this abnormal sound will be emitted, which is completely normal. 3. Excessive wear of brake discs and brake pads 4. Assembly problems If the brake pads are installed in the opposite direction or the model is not right, then there will also be abnormal noise, you can reinstall the brake pads, when the car mainly installs the brake pads, it is necessary to go to a professional auto repair shop to carry out the operation, especially in the roadside stalls to replace the owners of the brake pads, you should pay more attention to this.

There is a sizzling sound when the car is driven, it may be that the brake pads are worn thin, the brake drum is in direct contact with the vehicle, and the friction between the metals. A brake pad needs to be replaced.

If the car is sizzling after starting, it is likely that the engine belt is faulty, or the engine is vibrating due to loose bolts on the frame.

If the base bolts are loose, you can find the screws and tighten them yourself, if it is an engine belt problem, you should check the tightness of the engine belt first, we can try to clamp the transmission belt with your fingers, and then twist it, pay attention to the operation should be carried out when the engine is cool, the twist angle should generally be below 90 degrees, otherwise it will be adjusted.

Sometimes the car belt is loose, there will be a squeaky situation, you should go to the repair shop to check the belt, tighten it properly to see how the effect is. Usually you should pay attention to the maintenance of the belt, and the tightness should be moderate.

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.

The wiper is a bit loud, if it's too big or like chopping vegetables, it's time to change the wipers! As for the central control, I didn't think there was any abnormal noise.

It could be that there is a problem with the engine belt. The tightness of the engine belt should be checked first, try to clamp the transmission belt with your fingers, and then twist it, note that the operation should be carried out when the engine is cool, and the twist angle should generally be below 90 degrees, otherwise it will be adjusted.

The reasons for the sizzling sound when the car is driven are: 1. The engine support is not installed due to loose bolts on the base; 2. If the belt is loose or the belt is aging, you can replace it with a new belt; 3. The brake pads are thinned, the brake drum is in direct contact with the vehicle, if there is a metal friction sound when braking, it may be that the brake pads are worn to the raised position, and the brake disc will make an abnormal noise, which needs to be replaced in time. In addition, if the car does not start for a while, the oil will return to the oil pan, and the valve chamber will have less oil, because the valve chamber lacks the sealing and lubrication of the oil, so the car will hear a sizzling sound under the car when it starts.

What is the reason for the sizzling sound of the car? The reason why the car has a sizzling sound when driving is that the brake pads are worn to the limit, the brake drum is in direct contact with the vehicle, and the car needs to be replaced for about 3 to 50,000 kilometers before the front brake pads are driven according to the normal driving conditions, and the rear brake pads can be replaced after about 6 to 10 kilometers.

Each car has a different driving environment and a different degree of wear, and you can judge whether to replace it by observing the thickness of the brake pads. Generally, the thickness of the new brake pads is about centimeters, and there is a protrusion at both ends of the brake pads, about 3 mm, if the thickness of the brake pads is the same as this logo, it needs to be replaced immediately. 2019