If you have a newer car with separate ignition coils, your car will most probably not stall while driving if just one ignition coil has gone bad. If it is not repaired immediately, your car may come to a complete stop after a few miles. An engine stall occurs when the ignition coil delivers irregular current to the spark plug. If you are driving at normal speed and after a few kilometers, you notice that your engine stops, there is a possibility that the ignition coil is defective. If you have a single ignition coil, firing up a distributor – Common in old cars, your car might stall while driving. It is recommended that this problem be corrected immediately to avoid damage to the exhaust system. This also causes black smoke to escape from the exhaust pipe and a bad smell of gasoline, indicating that there may be a problem with the ignition coil. Backfiring occurs when there is an unburned fuel in the combustion cylinder, and it flows through the exhaust pipe. Engine Backfires & MisfiresĮngine backfiring is noticed in the early stages of an ignition coil failure. If you have noticed any of the symptoms below and the check engine light, the problem is most likely with the ignition coil. As the ignition coil has a direct effect on the engine’s functioning, the check engine light starts to flash if there is a problem with the coil. The check engine light illuminates if there is a problem with the engine. Ignition Coil Replacement Cost Bad Ignition Coil Symptoms 1.

Here is a more detailed list of the 6 most common symptoms of a bad ignition coil. Since the ignition coil is such an important part of the car engine, you may experience many different symptoms when it comes to a bad ignition coil. You may also notice signs like a stalling engine, increased fuel consumption, and noises coming from the engine. The most common symptom of a bad ignition coil is a misfiring engine together with a check engine light on your dashboard.

First, let’s take a quick look at the signs to look for: In this article, we will look at the symptoms of a bad ignition coil and examine what preventive measures could be taken to ensure the ignition coil’s long life. Therefore, if this part fails, you may have serious problems with your car engine. It is a key component of the car’s ignition system, and if it is faulty, your car will not start. An ignition coil is a transformer that is used to convert and supply enough current to the spark plug to produce a spark and start the engine.

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