Common Fuel System Faults?
2 Answers
Common faults in the fuel system are as follows: 1. Fuel supply pressure fault: There are many reasons for fuel supply pressure faults: clogged fuel filter; damaged fuel pump or clogged filter screen; insufficient fuel pump pressure, weakened spring force of the fuel pump safety valve, damaged fuel pressure regulator, etc. Abnormal fuel supply pressure leads to excessively rich or lean air-fuel mixture, reduced engine power performance, and engine vibration. 2. Fuel injector fault: Common fuel injector faults include: damaged fuel injector coil; stuck fuel injector; clogged fuel injector; poor fuel injector sealing, etc. Fuel injector faults can cause uneven fuel injection and poor atomization in each cylinder, resulting in uneven power output from each cylinder and causing engine vibration.
Fuel system failures are quite common. Over the years I've been driving, I've encountered several issues. The most frequent one is a faulty fuel pump - the car would shake violently during startup and just wouldn't ignite, turns out the fuel line wasn't delivering fuel properly. Another common issue is clogged fuel injectors, especially noticeable in older vehicles where the engine runs roughly and sometimes can't accelerate properly. Then there's the fuel filter - if left unchanged for too long, it accumulates debris that restricts fuel flow. I learned this the hard way by neglecting maintenance, which led to a clogged filter burning out my fuel pump, costing me a pretty penny to replace. Additionally, aging fuel lines can develop leaks, not just wasting fuel but potentially creating safety hazards. My advice: regularly inspect your fuel pump and filter, checking every 20,000 kilometers to ensure clean fuel lines. This extends your vehicle's lifespan and keeps driving safer.
