Why does the Ford Fiesta consume excessive fuel?
2 Answers
Reasons for the Ford Fiesta's excessive fuel consumption: 1. Poor driving habits: Sudden acceleration, hard braking, coasting in neutral, and mismatched speed and gear. 2. Carbon buildup and electronic control system failures: Carbon deposits on the throttle body, idle valve, and fuel injectors, as well as inaccurate signals from the oxygen sensor, intake pressure sensor, and coolant temperature sensor. 3. Lack of timely vehicle maintenance: Failure to replace air filters, fuel filters, spark plugs, clutch plates, and other components in a timely manner can also lead to increased fuel consumption. 4. Methods to check the causes: Check whether the tire pressure meets the standard, the degree of tire wear, whether the wheels rotate normally, and the condition of the bearings and braking system.
I've been driving a Ford Fiesta for several years and found that high fuel consumption is often related to driving habits. I've tried it myself—if I press the accelerator too hard, accelerate abruptly, or brake frequently, the fuel consumption shoots up. Especially in city traffic, stop-and-go driving consumes much more fuel than highway driving. Another point is vehicle maintenance; if the air filter is dirty, the engine can't intake enough air, works harder, and naturally consumes more fuel. Insufficient tire pressure also drags performance, increasing rolling resistance and making the car harder to drive. Additionally, as the car ages, components like spark plugs wear out, leading to poor ignition efficiency and incomplete combustion, wasting fuel. Regularly checking these and replacing engine oil can significantly improve fuel efficiency—don’t be lazy like I was at first.
