What Causes High Tire Pressure?
3 Answers
The causes of high tire pressure are: 1. Overly hot weather causing gas expansion and increased tire pressure; 2. Over-inflation of tires leading to high tire pressure; 3. Aging and wear of suspension components related to the wheels, resulting in misaligned tires, uneven wear, increased temperature, and higher tire pressure; 4. Prolonged operation generating heat through friction, leading to increased tire pressure. The effects of high tire pressure are: 1. Steering wheel vibration and deviation, reducing driving comfort; 2. Accelerated wear of the central tread pattern, shortening tire lifespan; 3. Reduced tire friction and adhesion, affecting braking performance; 4. Excessive stretching deformation of tire cords, decreased tire elasticity, and increased load on the vehicle during driving; 5. Increased body vibration, indirectly affecting the lifespan of other components; 6. Decreased resistance to punctures.
High tire pressure is usually caused by accidentally overinflating during air filling or excessive gas expansion in hot weather. Once, I was in a hurry while inflating my tires and didn't pay attention to the gauge, resulting in extremely high pressure. The ride became uncomfortably bumpy, and the center part of the tire wore out unusually fast. During long summer drives, tire pressure naturally increases due to heat, which can easily lead to blowouts on highways—a very dangerous situation. Other scenarios include using incorrect tire pressure specifications or unsuitable air pumps, leading to overinflation. For safety, I've now bought a portable tire pressure gauge and check the pressure monthly to keep it within the recommended range. Additionally, high-altitude areas with thin air might also affect tire pressure, but the most common causes are still human oversight or environmental temperature changes.
High tire pressure is primarily caused by the expansion of gas volume due to rising temperatures, as well as human error in over-inflation. From my practical observations, after parking a vehicle outdoors in the hot summer, tire pressure can increase by more than 10% compared to the cold tire state. Similarly, after driving at high speeds for a period, the heat generated by tire friction also causes the pressure to rise. Some car enthusiasts mistakenly believe that fully inflated tires make the car run faster, but this actually has the opposite effect. High-pressure tires reduce the contact area with the ground, leading to decreased grip, making them more prone to skidding during turns or braking. Excessive vehicle load can also indirectly cause high pressure. It is recommended to regularly check tire pressure when the tires are cold and avoid long-distance driving immediately after inflation.
