What Are the Symptoms of Bad Spark Plugs?

Your Car Might Be Telling You Something—Don’t Ignore These Signs

Spark plugs might be small, but they play a big role in keeping your engine running smoothly. Without healthy spark plugs, your vehicle can suffer from poor performance, lower fuel economy, and even long-term engine damage. If you’ve noticed your car acting differently lately, worn or faulty spark plugs could be to blame.

In this post, we’ll break down the most common symptoms of bad spark plugs, why they matter, and what to do if your vehicle shows signs of trouble.