Which term is used to describe when fuel vaporizes in the fuel pump and the flow of fuel to the engine is blocked?

The term used to describe when fuel vaporizes in the fuel pump, blocking the flow of fuel to the engine, is "vapor lock." This phenomenon typically occurs when the fuel temperature rises, causing it to vaporize and create gas bubbles in the fuel lines, which disrupts the normal flow of liquid fuel. Vapor lock can lead to engine stalling or difficulty starting, especially in hot weather or under high-performance conditions.