Posted on 8/7/2025
If your check engine light comes on while you're driving around Essex, MD, it’s easy to ignore — especially if your car seems to be running fine. But that little warning light could be trying to tell you something important. At J & H Tires, Inc., we’ve diagnosed hundreds of check engine light issues for our neighbors in the Essex area. Here’s what you need to know if yours turns on. Common Reasons for a Check Engine Light The check engine light is part of your vehicle’s onboard diagnostics system (OBD-II). It monitors many systems and components and turns on when it detects a problem. Some of the most common causes include: Loose or damaged gas cap Believe it or not, this is one of the most common triggers. A bad seal can cause fuel vapors to leak and set off the light. Faulty oxygen sensor This sensor monitors your exhaust a ... read more