What problems will occur if the fuel filter is dirty?

[LeKeira]

Problems that may occur when the fuel filter is dirty include: 1. Easy stalling: After the fuel filter is clogged, the delivery of gasoline is affected, leading to insufficient fuel supply to the engine. This results in noticeable jerking during driving or gear shifting, and the engine is prone to stalling when idling is unstable; 2. Increased mechanical wear: Due to unfiltered impurities, the fuel lines and fuel injection system will become corroded and damaged over time; 3. Reduced driving power: Due to poor fuel supply, the engine power decreases, causing the vehicle to lack driving force and reducing speed. The fuel filter, also known as the gasoline filter, primarily functions to filter out water and impurities from gasoline. When the engine is running, fuel enters the sediment cup of the filter through the fuel inlet pipe under the action of the fuel pump. As the volume increases and the flow rate decreases, water and impurity particles heavier than oil settle at the bottom of the cup, while lighter impurities flow with the fuel towards the filter element. Clean fuel seeps through the micropores of the filter element into its interior and then flows out through the fuel pipe.