What are the causes of idle vibration in the Geely Borui engine?
4 Answers
Geely Borui engine idle vibration may be caused by engine mounts, excessive carbon buildup, or ignition system issues. Excessive Carbon Buildup: Driving habits, fuel quality, and prolonged engine idling can all lead to carbon buildup. Ignition Issues: Long-term use of spark plugs without replacement can result in carbon deposits, severe wear of the spark plug alloy, or aging, all of which can affect the ignition performance of the spark plugs. Engine Mounts: Engine mounts act as shock absorbers for the engine, effectively isolating the engine's vibrations from being transmitted to the vehicle body. If the engine mounts develop oil leaks or the rubber deteriorates, the engine's vibrations can be transmitted to the vehicle body, causing body vibrations, which manifest as idle vibration.
I found that the common causes of engine idle vibration in the Geely Borui include excessive carbon deposits affecting combustion efficiency, aging spark plugs causing unstable ignition, and clogged fuel pumps or fuel filters leading to poor fuel supply. I've experienced this myself when driving similar models—the shaking felt like the car body was wobbling, sometimes accompanied by unusual noises. It's recommended to first check the ignition system, such as pulling out the spark plugs to see if they're heavily carbon-fouled. Additionally, if the engine mounts are loose or worn, the vibration transmission becomes more noticeable. Although this issue seems minor, it can be quite annoying, and prolonged neglect may damage other components. Addressing it early can save a lot of hassle. Remember to use carbon-cleaning additives regularly and avoid prolonged idling—it's better for the car. These are probably the most common scenarios I've encountered.
When I encounter such vibration issues, it's mostly caused by an imbalanced air-fuel ratio. Air leaks in the intake pipe or a dirty throttle can cause the mass airflow sensor to malfunction, disrupting the engine control unit's rhythm. Additionally, clogged fuel injectors causing uneven fuel spray or sensor errors are more likely to be exposed during idle. I suggest doing a simple test: unplug the sensor connector to see if the vibration persists, which can help quickly locate the problem. Last time, my friend's car had the same issue; he used a multimeter to check if the circuit voltage was stable and found poor grounding. Pay attention to gently pressing the accelerator when starting the car daily, avoid revving the engine hard when it's cold to reduce carbon buildup. If it gets severe, it will consume more fuel and affect smoothness, so it's best to do a simple check every month for prevention.
I see that engine idle shaking is commonly caused by spark plug or ignition coil failure. Excessive carbon buildup clogging the intake valves or high-voltage wire leakage can also make the engine run unsteadily. In daily driving, this issue makes the car feel like it's trembling and drives roughly. It's recommended to replace the spark plugs first, as this is relatively inexpensive and effective. Maintaining fuel quality and avoiding low-octane gasoline can also prevent fuel system blockages. Regular maintenance is crucial, including cleaning the throttle body annually. Simple treatments can often resolve the issue.
