The ignition coil's job is to take low voltage from the battery and transfer it to the higher amount needed to ignite your spark plugs and start your engine. As part of the ignition process, your vehicle will perform poorly or not at all without a properly running ignition coil.

As a critical part of your engine, as your ignition coil begins to fail, you may notice changes in your vehicle. So, what are the signs of a failing ignition coil? One of the critical signs of a poorly working ignition coil is a misfiring engine. If you feel a sputter or jerking while driving or accelerating, this could signal that one of your cylinders isn't firing correctly. Working in conjunction with this issue is a loss of power if your vehicle runs rough or feels sluggish while driving. The loss of power, your problem could be tied to a rotten ignition coil.

Another pair of signals to watch is hard starts and backfiring. Spark plugs work hand in hand with the ignition coil. If the spark plug isn't receiving the right amount of voltage at the right time, you may have a hard time starting your vehicle. Most modern cars don't experience backfires. The loud banging sounds that emanate from your engine and the black smoke leaving your exhaust could mean it's time for a new coil.

It's important to note that an ignition coil issue will trigger a check engine light. While a check engine light is a broad issue, an ignition or misfire code may begin to point you in the right direction. A bad ignition coil is an issue that you want to fix immediately. It's necessary to stay in tune with your vehicle and pay attention to any changes to performance.

A bad coil can ruin other parts of the engine, destroy your catalytic converter, lower your gas mileage, and more. Want to look further into a check engine light, or want a diagnostic? For the best auto service in the greater Richmond area, look no further than Ferber's Tire and Auto Service.

Written by Ferber's Automotive & Body Shop