Why Is My Check Engine Light On?

Why Is My Check Engine Light On?


When something in your car goes awry, your vehicle’s engine system will alert you to stay one step ahead of any potential problem. While it can be worrying to see the bright red ‘Check Engine’ light illuminate on the dashboard, keeping peace of mind is critical in ensuring the safety of yourself and your vehicle.

Keeping your car in its best condition is our priority at World Chrysler Dodge Jeep Ram (CDJR). Drivers around Shrewsbury, Red Bank, and Long Branch, NJ, asking themselves, “Why is my check engine light on?” may be surprised to learn the solution isn’t that complicated.

Let’s dig in. Don’t forget that you can schedule a service appointment right on our website!


Reasons Check Engine Light May Be On

Check EngineWhen your check engine light comes on, it’s essential to address the issue promptly to prevent further damage to your automobile. Remember: Ignoring the warning can lead to severe problems down the road, including reduced engine performance and, in extreme cases, engine failure.

Your car’s check engine light can cover a vast array of potential issues, and if unchecked, can result in a failed emissions test.

Some of the most common problems that can cause the check engine light to flicker on include…

  • Oxygen sensor failure: The oxygen sensor measures the amount of unburned oxygen in your vehicle’s exhaust system. A failing sensor can cause poor fuel efficiency and increased emissions. If left unaddressed, it can lead to further damage to the catalytic converter.
  • Loose or faulty gas cap: A loose or damaged gas cap can cause fuel vapors to escape, leading to poor fuel efficiency and increased emissions. It’s a simple issue, but one that can trigger the check engine light to come on.
  • Ignition coil or spark plug failure: Ignition coils and spark plugs are responsible for igniting the fuel-air mixture in your car’s engine. A malfunctioning ignition coil or spark plug can result in poor engine performance, misfires, and reduced fuel efficiency.

How to Turn off the Check Engine Light

Service CenterSometimes, a quick check under the hood can resolve the problem at hand. At the very least, it can point you in the right direction for a quick service turnaround.

If the check engine light has come on, consider these steps to address the issue…

  1. Check the gas cap: As we mentioned above, ensure the gas cap is properly tightened, and inspect it for any damage. If it’s loose or damaged, we can help you order a new gas cap.
  2. Maintain regular maintenance: Keeping up with your vehicle’s regular maintenance schedule can help prevent many issues that could trigger the check engine light. This includes oil changes, replacing spark plugs, and inspecting your vehicle’s emissions control system.
  3. Consult a professional: If you’re unable to diagnose the issue on your own, or the problem requires specialized knowledge, consult one of our professional mechanics for assistance.

We Can Turn off the Check Engine Light

Your vehicle’s check engine light serves as an essential warning system for potential issues with your sedan, truck, or SUV. By addressing these issues promptly, you’ll save time and money in the long run. If you’re unsure how to handle a check engine light, our service experts will help you diagnose and resolve any issues.

World CDJR proudly serves Shrewsbury, Red Bank, and Long Branch, New Jersey—and we’d love to provide you with peace of mind. Book an appointment online or reach out to us over the phone to resolve the question, “Why is my check engine light on?”


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