Definition of Vapor Lock
Vapor lock is a commonly observed issue in internal combustion engines that are powered by gasoline. The problem arises when the fuel in the delivery system undergoes a change in its physical state from liquid to gas. This leads to the fuel pump’s malfunction, which causes a reduction in the feeding pressure to the carburetor or fuel injection system. The outcome of this malfunction is a temporary or complete loss of power, or stalling of the engine.
Restarting the engine from this state can be challenging. High temperatures generated by the engine, climatic conditions in the surrounding area, or a lower boiling point at higher altitudes can cause the fuel to vaporize.
Vapor lock can heavily impact the performance of the engine and is a common cause of engine stoppage or stalling. To avoid this problem, it is essential to take precautions while fueling the car. One should avoid filling the tank up to its brim, ensure to use the appropriate fuel for the vehicle, and keep the fuel delivery system clean by maintaining it regularly.
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