What does it mean when the car detects pressure loss?
2 Answers
The pressure loss displayed on the dashboard indicates insufficient tire pressure, and you should check the air pressure of all four tires. Here are the detailed explanations: 1. Hazards of high tire pressure: Reduced rolling resistance. When encountering sharp objects such as nails or glass on the road, they can easily puncture the tire. Such impacts can cause internal cracks and explosions, leading to tire leaks. 2. Indirect tire pressure monitoring: The working principle of indirect tire pressure monitoring is that when tire pressure decreases, the vehicle's weight causes the rolling radius of the wheel to become smaller, resulting in the wheel rotating faster than others. Tire pressure can be monitored by comparing the speed differences between tires. Indirect tire pressure warning systems essentially rely on calculating the rolling radius of the tire to monitor tire pressure.
I was really panicked when I encountered this issue last time. The tire pressure warning light suddenly came on, and upon checking, I found a screw stuck in the right rear tire. Nowadays, new cars come with tire pressure monitoring systems, and a pressure loss is most likely due to a tire leak. There are generally three common scenarios: a nail puncture, a leaking valve stem due to aging, or a deformed wheel rim edge causing a poor seal. Once, while helping a neighbor check their tires, I discovered a small cut on the sidewall from scraping against a curb, which caused a slow leak that took three days to trigger the alarm. A quick reminder to everyone: the spare tire might also have a tire pressure sensor, so don’t forget to reset the system after changing a tire. The safest approach when the warning light comes on is to slow down, pull over, and inspect immediately. Last time, my friend kept driving and ended up ruining the wheel rim.
