What should I do if the car is driving and there is a sizzling sound?

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.

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.

According to the normal driving situation of the car, the front brake pads need to be replaced after about 3-50,000 kilometers, and the rear brake pads can be replaced after about 6-10 kilometers. But this is only a relative standard, each car driving environment is different, individual driving style is different, the degree of wear is not the same, we can judge whether to replace by observing the thickness of the brake pads. Generally, the thickness of the new brake pad is about centimeter, and there is a protrusion at both ends of the brake pad, about 3 mm, if the thickness of the brake pad is the same as this logo, it needs to be replaced immediately.

In addition, if there is a metal friction sound when braking, it may be that the brake pads are worn to the protruding position, which will rub the brake disc to make an abnormal noise, and it needs to be replaced in time; If you feel that the brake pedal is light, or you feel that the brake is hard and you can't brake the car, this also indicates that the brake pads are seriously worn and the thickness is not enough, and they also need to be replaced in time.

Photo by Ling Xiufang) @2019

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 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.

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.