Can the car still run if the ignition coil is broken?

[LeJustin]

If the ignition coil is broken, the car cannot run. One of the core components of the gasoline engine ignition system is the ignition coil. For the mixture in the engine cylinder to combust, ignition energy is required, and the ignition coil serves as the medium to provide this energy, completing the ignition action through the spark plug. Symptoms of a faulty car ignition coil: 1. Weak acceleration accompanied by shaking; 2. Reduced ignition energy provided by the ignition coil or electrical leakage may cause the engine to shake at idle, and abnormal engine noises can be heard; 3. The engine fault light on the dashboard will illuminate, indicating a fault; 4. The mixture in the cylinder may fail to combust, adhering to the three-way catalytic converter and causing blockage, leading to engine stalling.

[DelGia]

Last time my ignition coil had a problem, the car could barely start and shook violently when driving, like dancing. The speed couldn't exceed 50 km/h, the dashboard warning lights were flashing wildly, and after driving for a while, it completely stalled on the roadside. After towing it to the repair shop, it was found that the spark plugs were also burnt out, costing an extra 1000 yuan to fix. If I had gone to check it earlier, the problem wouldn't have escalated. This kind of thing happens often; a faulty ignition coil can cause abnormal engine operation, and continuing to drive may damage the catalytic converter or oxygen sensors, multiplying repair costs. Now I regularly check the ignition system and have a friend help inspect the plugs and wiring every year—prevention is always better than regret after the fact.

[SanPiper]

From a safety perspective, I absolutely do not recommend driving with a faulty ignition coil. This component controls the engine's ignition, and once it fails, the car may suddenly stall on the road, especially at high speeds, which can easily lead to rear-end collisions or loss of control. I've experienced a similar situation before—the engine vibrated so violently that even the steering wheel shook. Driving it to the repair shop was nerve-wracking. The mechanic told me that continuing to drive could accelerate wear on other components, such as piston rings or valves, and replacing the entire engine would cost a fortune. If you encounter this issue, pull over immediately and call for a tow truck. Ensuring your safety and that of others is paramount. Regular maintenance can reduce such risks, and I take time each month to check the engine's condition.

[LeKeegan]

Economically speaking, driving with a faulty ignition coil can lead to much higher costs. I initially thought it was fine to keep driving, but fuel efficiency plummeted, increasing fuel consumption by 30%, and I also had to repair damaged spark plugs and wiring. Continuing to drive could allow the problem to spread to the fuel system or sensors, multiplying repair costs several times over. In contrast, addressing it early only requires a small expense to replace the coil. I need to remember that when the car shows abnormal vibrations or fails to idle properly, I should get it checked immediately. A professional shop can quickly diagnose the issue using specialized tools—it’s not worth saving a little time or money.