What are the symptoms of poor ignition in the ignition coil?
2 Answers
Symptoms of poor ignition in the ignition coil: 1. At idle, the car body shakes noticeably. Observe the exhaust pipe outlet, and you will see that the exhaust gas flow has obvious intermittency, accompanied by severe shaking of the exhaust pipe and clearly audible popping sounds. 2. While driving, when the engine speed is below 2500 rpm, the car body shakes noticeably with poor acceleration. However, the shaking disappears once the speed exceeds 2500 rpm. 3. Open the engine hood and observe the running engine; you will notice significant shaking. This level of shaking is clearly abnormal for a properly functioning engine, with a very large amplitude of vibration.
I once had a car with a faulty ignition coil, making it particularly difficult to start—it took multiple turns of the key before the engine would fire up. While driving, the engine shook violently, causing the entire body to vibrate, making the ride extremely uncomfortable. Acceleration was weak, and pressing the throttle felt like it had no response, making overtaking dangerous. Fuel consumption also increased noticeably due to incomplete combustion wasting gasoline. What was even more frustrating was the constant illumination of the check engine light, forcing me to rush to the repair shop for an inspection. After the repair, replacing the ignition coil restored everything to normal. I recommend checking the condition of spark plugs and coil connections during regular maintenance. This experience taught me that even minor component issues can significantly impact the driving experience.
