How to Determine if the Ignition Coil is Faulty?
2 Answers
Methods to determine if the ignition coil is damaged are as follows: 1. The vehicle body shakes noticeably when the car is idling. 2. The exhaust airflow from the vehicle shows obvious intermittency; at the same time, the exhaust pipe shakes violently, and a distinct "popping" sound can be clearly heard. Below is more information about the ignition coil: 1. The core components of the ignition system are the ignition coil and the switching device. Increasing the energy of the ignition coil allows the spark plug to produce a spark with sufficient energy, which is a basic requirement for the ignition system to adapt to the operation of modern engines. 2. A typical ignition coil contains two sets of coils: the primary coil and the secondary coil. The primary coil uses thicker enameled wire, usually around 0.5-1 mm in diameter, wound approximately 200-500 turns; the secondary coil uses finer enameled wire, typically around 0.1 mm in diameter, wound approximately 15,000-25,000 turns.
I've been driving for several years and have encountered situations where the ignition coil failed. Actually, it's not too difficult to diagnose. First, pay attention to any abnormalities in the car, such as the engine struggling to start, constant shaking when driving, noticeable power loss, or the yellow engine warning light on the dashboard illuminating. These could all point to an ignition coil issue. To check it yourself, you can try removing a spark plug and see if there's a spark when starting the engine. If the spark is weak or absent, it might indicate a faulty ignition coil in that cylinder. Additionally, using a simple OBD-II scanner to check for trouble codes can help—common codes like the P0300 series indicate misfires, which often point to coil failure. During regular maintenance, inspect the ignition system to avoid being caught off guard. A bad coil can also lead to increased fuel consumption or spark plug damage. In short, at the first sign of trouble, take action or visit a repair shop promptly to ensure safe driving.
