What are the symptoms of poor fuel line flow?
2 Answers
The symptoms of poor fuel line flow include unstable idling, engine shaking, weak acceleration, and stalling. The main areas where fuel line blockages occur are the fuel filter, fuel pump, fuel injector, suction pipe, and fuel tank vent. Using low-quality gasoline or introducing impurities during refueling can cause fuel line blockages. In daily vehicle use, it is important to maintain the fuel filter, promptly clean the fuel filter element and fuel line pipes. Methods for cleaning the fuel line include: 1. Adding fuel cleaner to the gasoline; 2. Removing carbon deposits and sediments from the fuel line and throttle body; 3. Connecting the engine's fuel inlet and return pipes to the corresponding pipes of a no-disassembly cleaning machine, and using adapters to link the fuel inlet and return pipes. When selecting gasoline, choose high-quality fuel, and consider adding fuel cleaner periodically. Regular inspection and replacement of the fuel filter are essential to better prevent such issues.
I've been repairing cars for almost twenty years, and fuel line blockage is a common issue I encounter. When driving, you'll clearly feel a lack of acceleration power, and the throttle doesn't respond when pressed, as if the car hasn't had enough to eat. At idle, the tachometer fluctuates, and the car shakes violently. In severe cases, it may stall directly and have difficulty starting, requiring multiple turns of the key. Sometimes, the car suddenly slows down on the highway, and fuel consumption skyrockets because the engine isn't burning fuel evenly. This is mostly due to a clogged fuel filter or an aging fuel pump, preventing fuel from reaching the engine. If not fixed promptly, the engine will accumulate a lot of carbon deposits and may even suffer cylinder scoring, leading to costly repairs. I recommend checking the fuel filter every 20,000 kilometers. If you hear any unusual noises, stop immediately and don't force the car to run. Don't neglect regular maintenance; keeping the fuel lines clean can prevent breakdowns and avoid unnecessary trouble on the road.
