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What Should You Do When Your Check Engine Light Comes On?

What Should You Do When Your Check Engine Light Comes On?

Seeing your check engine light come on can be nerve-wracking, but there’s no need to panic! Here’s a straightforward guide to help you handle the situation safely and with confidence.

1. Stay Calm & Check for Immediate Signs

  • The check engine light can mean a variety of things, from a loose gas cap to engine issues. First, check if there’s any change in your car’s performance. If you hear strange noises, notice smoke, or feel the engine isn’t running smoothly, pull over safely and consider calling for help.

2. Tighten or Check the Gas Cap

  • Believe it or not, a loose gas cap is one of the most common reasons for a check engine light. If the gas cap is loose or missing, your car’s fuel system won’t be able to seal properly, which triggers the light. Tighten it until you hear a click, and see if the light goes off after a few drives.

3. Observe the Check Engine Light’s Behavior

  • Flashing or Steady? A steady light indicates a less urgent issue, while a flashing light usually signals a more serious problem. A flashing check engine light often points to engine misfires, which can damage your engine and emissions system if not addressed quickly.

4. Visit Wayside Garage for a Professional Diagnostic Test

  • This is where the experts come in! At Wayside Garage, we can run a full diagnostic scan to decode the exact reason your check engine light turned on. We connect directly to your car’s onboard computer to read the error codes, giving us a precise idea of what needs attention. As part of our maintenance plan, regular diagnostic checks and inspections help you prevent these situations before they become costly fixes.

5. Take Care of Repairs Promptly

  • Once you know the problem, it’s essential to address it quickly. Whether it’s a minor fix or something more involved, prompt attention can save you time, money, and the hassle of future repairs. Plus, ongoing issues can lead to decreased fuel efficiency and may damage other parts of your vehicle.

6. Stay on Top of Routine Maintenance to Prevent Future Issues

  • Following a regular maintenance schedule is the best way to avoid surprise check engine lights. At Wayside Garage, we recommend oil and filter services every 5-6 months, air filter changes, fuel system tune-ups, and comprehensive inspections each year to keep your engine running smoothly and reduce the risk of unexpected issues​.

Bonus Tip: Don’t Ignore the Light!

  • While it might be tempting to ignore the check engine light if everything seems “fine,” remember that it’s your vehicle’s way of alerting you to potential issues. Small problems can grow into big (and costly) repairs if left unchecked.
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