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What Causes the Fuel Leakage Alarm?

1 Answers

Sandy

07/30/25 10:29am

Fuel leakage alarm is triggered by actual fuel leakage, which can be caused by loose fuel line connections, damaged pipelines, cracked diesel filter canisters leading to oil leakage, and other similar issues. The fuel system's function is to supply the engine with a specific quantity of clean, well-atomized gasoline according to its operational requirements, enabling the formation of a combustible air-fuel mixture. Additionally, the fuel system must store a considerable amount of gasoline to ensure the vehicle has a substantial driving range. Common faults in automotive fuel systems include: Fuel supply pressure faults: These can result from various causes such as clogged fuel filters, damaged fuel pumps or blocked pump screens, insufficient fuel pump pressure, weakened fuel pump safety valve springs, or faulty fuel pressure regulators. Abnormal fuel supply pressure leads to either excessively rich or lean air-fuel mixtures, reducing engine performance and causing engine vibration. Fuel injector faults: Common injector issues include damaged injector coils, stuck injectors, clogged injectors, and poor injector sealing. Injector faults cause uneven fuel distribution and poor atomization across cylinders, resulting in unequal power output and engine vibration.

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