What Causes the Suction Sound When Opening the Fuel Tank Cap During Refueling?
1 Answers
When opening the fuel tank cap during refueling, the suction sound occurs due to the internal pressure of the fuel tank being lower than the external atmospheric pressure. The fuel tank cap refers to the square-shaped, stainless steel container on a car designed for storing gasoline, featuring good sealing properties with a circular entrance roughly the size of a bottle cap. Solutions for a fuel tank cap that cannot be opened normally include: 1. Remove the liner covering the fuel tank inside the trunk; 2. Locate the locking mechanism of the fuel tank cap and pull the release cable. The fuel tank is a container in a vehicle for holding fuel, specifically designed in hydraulic systems to store hydraulic oil or fluid, primarily serving functions such as heat dissipation, separating air bubbles from the oil, and settling impurities.