What are the symptoms of a broken car ignition coil?

The ignition system of a car does not mean that the ignition of the spark plug will start the vehicle, but in fact, the ignition of the spark plug cannot be done by itself. Among them, the auto ignition coil of the car plays a key role and is connected to the spark plug. The primary coil is charged by the battery, and the secondary coil is discharged to the spark plug.


First, the role of the car engine coil

The core components of the ignition device are the auto ignition coil and the switch device, which are manually controlled by us, and the ignition coil is an internal part, which is connected with the spark plug to increase the energy of the engine coil, and the spark plug can generate enough energy. The main coil of the ignition coil is charged by the battery, the secondary coil is discharged to the spark plug to complete the ignition, and the triode is responsible for switching.


Symptoms of a broken auto ignition coil

1. If the engine coil of the car is broken, when idling, the engine of the car will keep shaking, the cylinder is missing, and you can hear the sound of "chug".


2. If the vehicle speed is below 2500 while driving in China, the body shakes obviously, the acceleration is weak, and if the vehicle speed is above 2500, the feeling of shaking disappears, which is also the problem of the ignition coil.


3. Open the engine cover and observe the running engine. If there is obvious jitter, it is no longer the jitter under normal working conditions, and the jitter amplitude is relatively large, which is likely to be a fault of the engine coil.


3. Reasons for the damage to the auto ignition coil

1. If it is used for too long, the insulating layer will age, which usually happens in old cars. If the service life is not long, the engine coil insulation needs to be checked for the rapid deterioration of the ignition coil insulation due to excessive spark plug gap load and heat.


2. When the engine is overheated, the insulating paint of the ignition coil is baked, which means that the gap between the electrodes of the spark plug will be too large, thereby increasing the load of the engine coil, and the breakdown of the high-voltage coil will cause a short circuit.


3. The plug of the auto ignition coil may also be loose. If the plug comes loose, the additional resistance of the auto ignition coil



will inevitably be damaged.


4. The most common is self-destruction. When the engine coil ruptures, electricity leaks, resulting in insufficient ignition capacity.


If only one engine coil fails, the other three cylinders work fine and are barely drivable, but will adversely affect the engine, engine mounts and connecting components. If this happens, it is recommended not to continue driving, especially if the auto ignition coil of more than one cylinder is burned out, stop immediately, otherwise, it will cause irreparable damage.


Haiyan is a professional Ignition Coil Manufacturer in China, focusing on high-quality Engine Coil and Auto Ignition Coil manufacturing, welcome to contact us!

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