What are the reasons for BYD F0 idle shaking?

[JanelleFitz]

BYD F0 idle shaking may be caused by: 1. Unstable oil pressure, check the fuel supply pressure and intake pressure sensor. If the fuel pump supply pressure is abnormal or the intake pressure sensor value is incorrect and not working properly, it will cause shaking; 2. Aging engine components, if there is a problem with the engine mount, these vibrations will be transmitted to the steering wheel and the interior of the car, causing shaking; 3. Poor tire balance quality, if you notice slight shaking or deviation of the car body during driving, it may be due to poor tire balance; 4. Excessive carbon deposits, it is recommended to clean the throttle and injector to ensure smooth fuel injection, check if the spark plugs are normal. If they turn black, replace the spark plugs to improve ignition energy and achieve thorough combustion.

[RachelLynn]

As an average car owner, my BYD F0 shakes noticeably at idle, like sitting on a vibrating massage chair, which is quite uncomfortable. Common causes might be aging spark plugs—over time, the electrode gap widens or carbon buildup accumulates, affecting ignition and causing engine instability; or the throttle body might be clogged with too much oil residue, restricting airflow and leading to rough idling. Sometimes, worn or loose engine mounts fail to absorb vibrations, making the shaking more pronounced. Additionally, clogged fuel injectors or a dirty air filter can disrupt the air-fuel ratio. I recommend starting with the simplest checks, like replacing the spark plugs or cleaning the throttle body—it’s easy to DIY. Don’t overlook this issue, as it could lead to increased fuel consumption and accelerated engine wear. Just inspect these details during routine maintenance. For safety, if the shaking worsens and affects driving, I’d opt for a full diagnosis at a 4S shop to avoid nighttime hazards.

[DeCharles]

Having worked in the repair industry for over a decade, I've encountered numerous cases of BYD F0 idle vibration issues, typically caused by ignition system failures—such as worn spark plug electrodes or faulty ignition coils leading to uneven cylinder ignition; fuel supply problems like clogged fuel injectors or aging gasoline filters reducing fuel injection volume; and intake system issues such as throttle position sensor errors or carbon buildup in the idle control valve disrupting idle speed settings. My usual approach is to first use an OBD scanner to read trouble codes for precise diagnosis, followed by cleaning the throttle body or replacing relevant components. Addressing this vibration early is crucial, as neglect can lead to engine overheating, excessive emissions, or even stalling risks. I recommend owners regularly replace wear-prone parts, like inspecting spark plugs every 20,000 kilometers, and avoiding cheap aftermarket components. Professional maintenance extends vehicle lifespan and saves long-term costs.

[DeAlexander]

From an automotive enthusiast's perspective, the idle vibration of the BYD F0 often stems from carbon buildup—deposits forming over time on piston tops or intake tracts, hindering combustion efficiency; or worn engine mounts transmitting engine vibrations to the cabin. Try using high-quality fuel or specialized cleaners during highway driving to clear carbon deposits; reducing prolonged idling in daily driving also helps prevent carbon accumulation. Additionally, a dirty mass airflow sensor or loose connectors may mislead the ECU, causing unstable idling. Minor adjustments can alleviate the issue when encountered, but severe vibrations accompanied by abnormal noises warrant a professional inspection to ensure engine health and safety. Simple DIY tasks like cleaning the air filter are easy to tackle.