What is the reason for intermittent idling vibration in Wuling Hongguang S?
4 Answers
The reason for intermittent idling vibration in Wuling Hongguang S is excessive carbon buildup in the throttle body. It is recommended to regularly clean the carbon deposits. If the vibration persists, it is advisable to visit an auto repair shop or a 4S store for inspection. The throttle body is a controllable valve that regulates the air entering the engine. After entering the intake pipe, the air mixes with gasoline to form a combustible mixture, which then burns to generate power. Taking the 2020 Wuling Hongguang S as an example, it is a microvan with a body length of 4390mm, width of 1660mm, height of 1750mm, a wheelbase of 2720mm, a fuel tank capacity of 50 liters, and a curb weight of 1185kg. This vehicle is equipped with a 1.2L naturally aspirated engine, delivering a maximum horsepower of 76ps, maximum power of 56kw, maximum torque of 110nm, and is paired with a 5-speed manual transmission.
As a seasoned driver with over a decade of experience behind the wheel of a Wuling Hongguang S, I've encountered the common issue of engine shaking during idle. The most frequent cause is worn-out spark plugs – after prolonged use, their ignition becomes unstable, causing the engine to shake. Another culprit is carbon buildup in the throttle body, which disrupts even air intake over time. Clogged fuel injectors that deliver inconsistent fuel spray can also trigger this problem. A dirty air filter restricting proper airflow can make the engine shudder like it's having convulsions. I remember one severe shaking episode that improved after I replaced the spark plugs and cleaned the throttle body myself. My advice: have these components checked during routine maintenance – neglecting them accelerates engine wear and compromises safety.
As an owner of a Wuling Hongguang S, I usually drive slowly to and from work, which causes the engine to idle roughly from time to time. This is mainly related to driving habits. Like me, driving at low speeds frequently leads to rapid carbon buildup, causing unstable combustion in the cylinders and resulting in shaking. Poor fuel quality also accelerates clogging of the fuel injectors, leading to uneven fuel supply. If the air flow sensor gets covered in dust, it misleads the ECU, and a dirty throttle restricts air intake, causing the same issue. Later, I learned to take the car on the highway on weekends to clear out carbon deposits, which improved the situation. However, the easiest solution is still regular professional maintenance at a service center.
When repairing the Wuling Hongguang S, idle shaking is mostly caused by aging ignition coils or failed spark plugs that fail to ignite. A clogged fuel injection system with intermittent fuel supply leads to severe shaking, especially with excessive carbon deposits, particularly behind the throttle valve being the most troublesome. A clogged air filter restricts airflow, or a faulty sensor causes the computer to lose control. Loose engine mounts directly transmit vibrations. I recommend owners replace spark plugs and filters themselves. If the issue persists, promptly visit a shop for diagnostic tools to avoid damaging more parts and increasing repair costs.
