Ignition coils are an essential part of your car’s ignition system, and as such, their condition has a direct impact on how well your spark plugs and engine run. In fact, your engine might not start at all or perform poorly if your ignition coils aren’t working properly. Read on as we uncover the symptoms behind a bad ignition coil.


What are the symptoms of a bad ignition coil?

symptoms of a bad ignition coil

Watch out for these signs of ignition coil failure, as they can cause serious engine damage.

You Can’t Get Your Car to Start

Older cars utilize a single ignition coil, but most current engines use one for each cylinder. The coil will not provide the spark plugs with the proper voltage if it breaks. While it will crank, your car won’t start.

There is a Loss of Power

Loss of power is one of the initial symptoms of a bad ignition coil. This happens when erratic sparks don’t produce the necessary combustion and lead to problems with the vehicle’s performance, such as a sluggish feeling.

Your Vehicle Stalls

An ill ignition coil makes it harder to start the engine by not providing the spark plugs with the required voltage. Your automobile will suddenly quit or stall when you stop.

Misfires and Backfires in Your Vehicle

A misfire may result from an issue with the ignition coils, which aid in igniting the engine’s air-fuel mixture. When your automobile backfires, it indicates that one of the cylinders isn’t firing at all or not correctly. The catalytic converter and other engine parts might be harmed by this. You might even smell gas and see smoke shooting out of your tailpipe.

There Is an Illuminated Check Engine Light

Misfiring, hard starting, and backfiring will set up the check engine light. In order to prevent more damage and increased repair expenses, you should never ignore the check engine light on your dashboard and should have repairs done as soon as feasible.

Your Car Vibrates and Idles Rough

If there is a problem with the ignition coil, your automobile will vibrate and idle roughly. When you step on the accelerator, your car will jolt forward because a defective coil cannot provide the voltage needed to produce constant sparks.

There Are Sounds of Coughing, Spluttering, And Banging

A faulty ignition coil is the cause of any spluttering and coughing noises coming from your car. The noises originate from a cylinder that is either not firing at all or not firing correctly during ignition. The combustion cylinders’ unused gas is exploding, which is why you may hear loud pounding sounds.

Your Vehicle Appears to Be Slow

If your automobile feels sluggish and responds slowly when you press the gas pedal, it can be a malfunctioning ignition coil. Your car isn’t getting enough gasoline to ignite, which is why it’s losing power.

Your Vehicle Uses A Lot of Gas

Even if you are not driving extra miles, you may need to stop at the gas station more frequently than usual due to ignition coil troubles. In the event that a battery fails to supply sufficient power to the spark plugs, your car will increase its fuel consumption.

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In conclusion, keeping your car in good working order depends on being aware of the signs of a malfunctioning ignition coil. These symptoms might be early indicators of ignition coil issues. They include difficulties starting your car, higher fuel consumption, poor acceleration, misfires, and strange engine noises.

Ignoring these signs could result in more serious engine problems and expensive repairs. It is crucial that you take immediate action and seek professional assistance in response to these warning indications in order to maintain the dependability of your car.

Frequent auto maintenance may prolong the life of your engine and keep your automobile operating smoothly. This includes inspecting and possibly replacing your ignition coils. You may prevent the inconvenience and costs related to an ignition coil malfunction by being watchful and proactive.

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