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Why do car tires always leak for no reason?

Causes and solutions of automobile tire air leakage;

1, valve aging

Generally, the original valves of vehicles are rubber products, which have a long service life. After a long time, the valve may harden and crack, resulting in tire leakage.

Inspection method:

Check the tire valves one by one. If the surface cracks and hardens, it is best to replace them. It will be more reliable to replace it with a metal valve.

2. Stabbed by nails and other foreign objects

The most common damage is that the tire is punctured by foreign objects, including screws, nails, iron wires and glass fragments. If the wound is small, these sharp things will cause the tire to leak. If it penetrates the tire and is inserted in the damaged part, the owner will not notice it, and the damaged area of the tire may increase after a long time.

Inspection method:

As long as we observe carefully, we can find foreign bodies sticking to the tire surface. If it is hidden deep, we can sprinkle some water on the tire surface, and there will be bubbles or even deflation in the damaged area.

3. Wheel hub crack

If there is a crack in the hub, it will also lead to air leakage of the tire, and the crack may also expand, which will eventually lead to the fracture of the hub. What's the danger? With the help of the brain, the hub of the vehicle suddenly breaks at high speed, and the consequences will be very tragic.

Inspection method:

It is necessary to remove the tire, and then carefully observe whether there are cracks on the surface and inner wall of the hub. If there is a crack, change it. Don't trust those wheels.

What is the cause of the flat tire?

4. Tire side damage

If the owner is not careful when parking, the tire may rub against the curb. If the number of rubs is too much, it will damage the sidewall and cause hidden air leakage. It will also cause tire bulging and increase the chance of puncture.

Inspection method:

If the tire side is damaged, you can see it directly. If the tire is damaged or bulged, it must be replaced with a new tire as soon as possible.

5. Wheel hub deformation

At present, in order to prevent passenger car tires from leaking, the wheel hub is closely attached to the tires. If the hub is deformed, it will affect the close fit with the tire, resulting in air leakage.

Inspection method:

If the tire is badly deformed, we can see it by rubbing our eyes. If it doesn't look good, you need to unload the tire and sprinkle water at the joint between the tire and the hub. The place where cheongsam is produced is the hidden leakage caused by the deformation of the hub.