Crain Hyundai of Bentonville

May 11, 2023

A misfiring engine might have a variety of potential causes. One possibility is faulty ignition coils failing to supply the spark plugs with sufficient electrical power. Moisture, engine vibrations, excessive heat, or bad spark plugs can all sometimes damage an ignition coil. If one of your coils is faltering, you might experience the following five issues, any of which should prompt a swift visit to your local Hyundai dealer for a new ignition coil.

Does Your Hyundai Have a Faulty Ignition Coil?

Your Check Engine Light’s Blinking

Modern Hyundais are packed to the rafters with computerized sensors that quickly pick up engine problems. So if one of your ignition coils is on its last legs, you’ll soon see the dreaded check engine light come to life on your dashboard. 
While this light doesn’t diagnose the problem for you, it’s best not to ignore it. Have a technician take a look, especially if you’re also noticing some of the other problems laid out below.

Your Engine’s Losing Power

When one or more cylinders start misfiring because of bad ignition coils, the engine is robbed of a portion of its power. In particular, your acceleration will suffer. When you step on the gas pedal, your car might respond sluggishly. It might also jolt and shudder as it tries to gather speed. 

Stuttering and Stalling

Bad ignition coils mean misfiring spark plugs. This misfiring causes the engine to stutter and cough and generally sound unhealthy.  When you slow down in traffic, these signs of struggling will become more obvious. And if an ignition coil has failed altogether, your engine might even stall. 

You Notice Exhaust Problems

The misfiring that bad ignition coils create can rapidly lead to more serious problems. Combustion chambers become fuel-rich when spark plugs stop sparking consistently. 
The excess fuel can leak back into the exhaust system, causing backfiring, thick exhaust smoke, and damage to parts of the exhaust system. For this reason, it’s wise to have bad coils repaired or replaced promptly while the problem is still minor. 

You’re Stopping More Often for Gas

Misfiring engines rapidly lose gas mileage. As a result, you’ll no longer be driving as far between gas station stops. 

How Often To Replace Coils at Your Hyundai Dealer

Ignition coils in well-maintained cars can last for 100,000 miles or more. So it shouldn’t be a component you need to replace often. As with most engine components, tougher driving environments such as very hot or dusty climates, heavy traffic, or steep roads, might cause your coils to wear down faster. 
Visit Crain Hyundai of Bentonville today to have your ignition coils examined, cleaned, or replaced. We’re a local dealership dedicated to providing exceptional, personalized service to all our customers.