What Symptoms Will a Car Show When the Fuel Injector is Faulty?
2 Answers
When a car's fuel injector is faulty, it may exhibit the following symptoms: 1. Severe carbon buildup in the engine cylinders; 2. Accelerated wear of the cylinder liners and piston rings, leading to unstable idling; 3. Increased fuel consumption, lack of power during acceleration, and difficulty starting; 4. Excessive vehicle emissions. It is recommended to clean the fuel injectors regularly and promptly. A fuel injector is a simple solenoid valve. When the solenoid coil is energized, it generates a magnetic force that lifts the needle valve, opening the injection hole. Fuel is sprayed at high speed through the annular gap between the needle valve head and the injection hole, forming a mist that promotes complete combustion. The main types of fuel injectors in cars include: diesel injectors, gasoline injectors, and natural gas injectors.
When my car's fuel injectors malfunctioned, the entire driving experience changed drastically. Upon starting, the engine would shake violently, as if it were protesting, especially at idle when it became even more unstable, nearly stalling several times. Acceleration was particularly weak, with the car responding sluggishly to the throttle, making it difficult to pick up speed. Fuel consumption noticeably skyrocketed; what used to require refueling twice a month now demanded more frequent trips to the gas station, wasting money and breaking my heart. The exhaust pipe also emitted black smoke, polluting the air, and I was once stopped at an inspection station for exceeding emission standards. Worse yet, there was an instance where the car suddenly stalled while driving—fortunately, it was at low speed in the city; had it been on the highway, it could have led to a major accident. These symptoms appeared gradually, and as soon as they were noticed, the car had to be sent for repairs to prevent further engine damage.
