What is the primary function of a valve core in a tire?

The primary function of a valve core in a tire is to keep air from escaping. The valve core is a crucial component of the valve stem, and it works by sealing the interior of the tire against the external environment. When the valve core is closed (in its resting position), it prevents air from leaking out of the tire, maintaining the pressure needed for optimal tire performance. When air needs to be added or the tire needs to be deflated, the valve core can be opened by pressing down on it, allowing air to flow in or out.

Understanding the role of the valve core is essential for proper tire maintenance. If the valve core is faulty or damaged, it can lead to air loss, resulting in reduced tire pressure, which can affect the vehicle’s handling, fuel efficiency, and overall safety.