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What Causes Abnormal Car Tire Pressure?

2 Answers

JackDella

09/01/25 4:57am

Driving with low tire pressure for an extended period, tire punctures, or prolonged lack of inflation can cause pressure to drop below 1.8 bar. Hazards of excessive tire pressure: Reduced tire friction and adhesion, affecting braking performance; causes steering wheel vibration and misalignment, lowering driving comfort; accelerates uneven wear on the central tread pattern, shortening tire lifespan; increases vehicle vibration, indirectly impacting other components' longevity; overstretches tire cords, reducing elasticity and increasing driving load; decreases puncture resistance. When encountering sharp objects like nails or glass, tires are more prone to penetration, leading to internal cracks or blowouts. Hazards of insufficient tire pressure: Increases road friction coefficient, raising fuel consumption; creates heavy steering and misalignment, compromising safety; amplifies tire movement, causing abnormal heat from excessive rolling; degrades cord and rubber functionality, leading to delamination or cord breakage, damaging bead areas through excessive rim friction; multiplies ground friction, rapidly raising tire temperature and softening rubber, drastically reducing strength. High-speed driving may cause blowouts; enlarges tire deformation, promoting sidewall cracks and flexing movements that generate excessive heat, accelerating rubber aging, cord fatigue, and breakage, while expanding contact area to hasten shoulder wear.

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DiMaci

09/13/25 7:42am

I think abnormal tire pressure is mainly caused by changes in the air inside the tire. It could be low pressure, such as a puncture from a nail or a loose valve stem; or it could be high pressure, from over-inflation without noticing. I've experienced it myself while driving—the steering felt floaty, and during hard braking, it felt unstable. After consulting other car enthusiasts, I learned that low pressure increases the tire's contact area, raising friction and drastically increasing fuel consumption, while high pressure reduces friction, making the tires prone to slipping. Normally, tire pressure drops in cold weather and rises in hot weather. If you drive for a long time without checking, problems are bound to arise. I recommend keeping a simple tire pressure gauge in the car and measuring regularly to ensure safe driving. I've also noticed that long-term neglect can lead to uneven tire wear, shortening their lifespan and wasting money on premature replacements. It's best to check once a month and address any issues early.

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