It is very normal for the car to fail, after all, it is a machine, and it is inevitable that the parts will be abnormal when they are running. For car owners, they must also learn to judge the source of some faults, or observe what is wrong with the car from the surface. For example, there is such a situation in many cars, whether it is driving or idling, accidents may occur. However, some noises on the car are normal, and some are reminding you that something has failed and needs to be repaired in time. Therefore, we will analyze what abnormal noises will be on the car, as well as the reasons and precautions for these abnormal noises, hoping to help everyone.
First of all, if it is at idle speed, there is always a sudden abnormal sound at the tail end of the exhaust pipe. This situation is often the exhaust pipe inside the water is not discharged out of the sound, the problem is not big, the solution is also very simple, drive the car to the steep slope, the front of the car up and then slammed on the accelerator, this time the water in the exhaust pipe will be discharged, the abnormal sound will disappear. And if there is often a situation of water accumulation in the drain pipe, the owners can also go to the repair shop and let the repair master drill a small hole in the lowest part of the exhaust pipe to drain the water, so that there will be no water in the drain pipe in the future, once and for all.
Second, if the car has been turned off, but the underside of the car can hear a crackling sound, sometimes like running water. At this time, car owners do not have to worry, generally it is normal, mainly because the exhaust pipe is particularly high when working, and the front-end temperature is generally around 500-800 degrees Celsius. After the car is turned off, the engine no longer works, the temperature of the exhaust pipe will drop sharply, due to thermal expansion and contraction, the exhaust pipe contraction will make a sound, and after a little while this abnormal sound will disappear.
In the third case, if the co-pilot's front center console produces a different sound when the warm air is turned on, the warm air is turned off and the abnormal sound disappears. This situation is also very common, often because there is debris in the blower of the warm air, such as leaves and the like being sucked in. Don't worry, solve it in time, open the engine cover, find the cover plate of the air conditioner inlet, open the cover plate, take out foreign objects such as leaves, and the abnormal noise will disappear.
The fourth situation is in the winter, the car starts to make a squeaking noise, and then disappears after a while, especially some old cars, which often occur. The reason for the occurrence of this abnormal noise is mainly caused by the aging and relaxation of the belt, of course, it may also be friction caused by the damage of the pulley. After hearing this abnormal sound, be sure to go to the repair shop in time for maintenance to see if there is a problem with the belt or pulley, and the serious situation must be replaced.
Next, let's take a look at the abnormal noise that the car will appear during driving. First of all, there is a humming noise when driving. It's like the sound of a motorcycle driving next to you. This abnormal noise is likely to be due to the broken bearings of the car, or the abnormal wear of the tires. First stop the car, touch the tire with your hand where the ground is in contact, see if it is uneven, and touch the inside and outside. If it is found that the tire has been ground into a shape similar to serration, the noise is the tire emitted, if not, it is likely that the bearing parts on the car are broken and need to be replaced in time.
In addition, if it is a clicking sound from a certain tire, and it is very rhythmic, the faster the speed, the louder the louder and the faster the frequency. This situation is often a large stone stuck in the groove of the tire, or a larger screw, iron nail or the like. Therefore, the first time to stop to check whether the tire with abnormal noise has small stones or the like, if it is a tire, it should also be dealt with in time.
In the seventh type, the brakes will also produce abnormal noises, for example, when you lightly press the brakes, it will make a squeaking sound. In this case, check the brake pads for the first time to see if they are already very thin, if the time wears out below the cordon for a long time, it is equivalent to a piece of iron rubbing, issuing a squeaky alarm sound, if it is, you have to replace the brake pads at the first time. However, if it is found that the brake pad is still above the cordon and the thickness is normal, it is likely that there are hard spots on the brake pad, or there is a foreign body between the brake pad and the brake disc, resulting in a strange sound when the two are in contact with friction. The processing is also very simple, go to the repair shop to remove the brake pads and grind it, and remove foreign objects on the line. Well, this issue about some of the strange noises that will appear on the car and the solution will first talk about this, and see you in the next issue.