What You Should Do When The Check Engine Light Comes On

What You Should Do When The Check Engine Light Comes On | Roesbery Car Care

Let's be real—seeing the check engine light come on can feel like your car has just handed you an ominous note saying, "We need to talk." It's a moment that can range from mildly concerning to full-blown panic attack material. But we are here to guide you through this unnerving experience with some composure and savvy. Because, like a cryptic message in a bottle, your car is communicating with you, and it's crucial to understand what it's trying to say.

Decoding the Signal

Stay Calm and Assess

The first thing to do is stay calm. The light can signify anything from a loose gas cap to more severe issues like a malfunctioning engine component. Take a deep breath and observe. If the light is steady, it's likely not an urgent issue, but it still needs attention. If it's blinking, however, your car is signaling that there's a severe problem that needs immediate attention.

Check the Basics

Before you head off to the mechanic, there are a few simple checks you can do:

  • Fuel Cap - A loose or damaged fuel cap is a common culprit. Tighten the cap and see if the light turns off after several trips.
  • Listen and Observe - Are there any unusual noises? Is the car driving differently? Make notes of these symptoms, as they can be valuable clues for the mechanic.

Expert Intervention or DIY?

Gauge the Situation

After your initial assessment, you'll have a better idea of how urgent your situation is. For instance, if you've tightened your fuel cap and the light remains on without other symptoms, you may decide it's safe to drive until you can schedule service. However, if there are obvious performance issues or a flashing light, it's time for immediate professional help.

Code Reader Insight

If you're feeling hands-on and want some insight before seeing a professional, consider using an OBD-II scanner. These devices plug into your vehicle's diagnostic port and read trouble codes from your car's computer system. This could give you specific information about what's triggering the warning.

The Mechanic Connection

Trust But Verify

Now let's say you're at the mechanic's; ensure they explain any identified issues clearly. If something doesn't make sense—ask questions! You have every right to understand what's happening with your vehicle.

Cost Considerations

Be mindful of cost implications while addressing check engine warnings. Sometimes, quick fixes may solve one issue but could mask larger problems. Always consider long-term solutions over cheaper short-term fixes.

FAQ Section

Q1: Can I drive my car with the check engine light on?
A: If the light is steady and not flashing, you often can drive for a limited distance but should get it checked as soon as possible. A flashing light means to stop driving immediately to avoid significant damage.

Q2: Will my car fail emissions testing if the check engine light is on?
A: In most cases, yes. The check engine light indicates there's an issue with your vehicle's emissions system, which needs rectification before passing an emissions test.

Q3: Is it expensive to fix issues related to the check engine light**
A: The cost can vary greatly depending on the issue. It could be as minor as tightening a gas cap (which might be free) or more significant like replacing a catalytic converter (which could be quite costly).


When your check engine light comes on, make sure to contact us at Roesbery Car Care. We will make sure to take care of, and any other issues that might be lying beneath!