What are the reasons for BYD F3's sluggish acceleration, jerking, and dull performance?
4 Answers
BYD F3's sluggish acceleration, jerking, and dull performance may be caused by faults or malfunctions in the engine, intake pipe, spark plugs, or exhaust gas recirculation system. Below are detailed explanations: 1. Engine and system: Engine lubrication and system failure, engine overheating. The solution is to seek professional mechanics for repairs. 2. Intake pipe: Intake pipe leakage leading to overly lean air-fuel mixture. The solution is to repair the intake pipe. 3. Weak high-voltage spark: Weak high-voltage spark caused by faulty spark plugs, igniter, or high-voltage wires. The solution is to replace the spark plugs and igniter. 4. Exhaust gas recirculation system: Poor performance of the exhaust gas recirculation system. The solution is to have professional mechanics repair the exhaust gas recirculation system.
My BYD F3 also experienced a lack of power during acceleration, jerky movements, and a muffled engine sound before—it was really frustrating at the time. I analyzed the situation, and this kind of issue is mostly caused by problems with the car’s core components. For example, aging spark plugs or faulty ignition coils in the ignition system can lead to poor combustion. It could also be due to a clogged fuel system, heavily carbon-fouled fuel injectors, or insufficient fuel pump pressure, resulting in uneven fuel supply. Additionally, a dirty air filter can affect air intake, causing the engine to run roughly. Over time, excessive carbon buildup makes the car feel weak, as if it’s sick. I recommend starting with simple checks, such as replacing the spark plugs or cleaning the throttle body. If that doesn’t work, it’s best to take it to a professional shop for diagnostics—safety comes first, and driving an uncomfortable car is too risky.
As someone who frequently tinkers with cars, I believe that when a BYD F3 exhibits symptoms like sluggish acceleration, jerking, and a dull engine, it's often caused by sensor or software issues. A faulty oxygen sensor can lead to an imbalance in the air-fuel ratio, resulting in poor combustion efficiency; or the computer module might have a bug, causing it to improperly adjust the ignition timing. Another possibility is that the transmission fluid is overheating or worn, leading to rough shifting. I once helped a friend diagnose a similar case—a simple solution was cleaning the mass airflow sensor or changing the engine oil, but in severe cases, a full diagnostic scan with a scanner is necessary. Neglecting regular maintenance makes these problems prone to recurring, so changing the oil filter periodically is crucial.
My experience driving the BYD F3 over the past few years is that the acceleration is sluggish and jerky, mainly due to fuel system issues or lack of maintenance. For example, clogged fuel injectors cause uneven fuel spray, or a dirty fuel filter affects flow; or poor-quality gasoline leaves residue, leading to poor combustion. I recommend checking the fuel tank cap seal to ensure proper pressure, and trying a new air filter. If the problem persists, test the fuel pressure pump or ECU module. Regular maintenance is crucial—don’t neglect the timing of filter replacements.
