Seeing your check engine light suddenly appear on the dashboard is never a fun experience. It’s a small light with a big message that can signal something as simple as a loose gas cap or as serious as an engine issue. Either way, one thing is certain: you shouldn’t ignore it.
At Legacy Chevrolet in Greenwood, SC, we know how concerning that little light can be. That’s why we’re here to help you understand what it could mean for your Chevy and what steps you should take next. Here, we’ll break down the most common reasons your check engine light might be on, how to respond, and when it’s time to schedule a service appointment with our expert technicians.
Let’s dive in and take the mystery out of that dashboard warning.
Common Reasons Your Check Engine Light Is On
There are a lot of reasons your check engine light may come on, and not all of them are serious. Here are some of the most common causes.
Loose Fuel Cap
A loose gas cap may not seem like a big deal, but if it’s loose fuel vapors escape. This can cause emissions system errors, which will trigger your check engine light. If the light comes on after leaving the gas station, there’s a good chance that your fuel cap is just loose. On the other hand, if your gas cap is secure, it may indicate a fuel system issue. Our technicians at Legacy Chevy can install a new gas cap or fix any fuel system problems.
Catalytic Converter Issues
The catalytic converter is a key component in your vehicle’s exhaust system. When it malfunctions, your emissions system can’t work efficiently, causing toxic fumes and triggering the check engine light.
Common causes of this malfunction are faulty spark plugs, unburned fuel that needs professional attention, or structural damage. Our knowledgeable technicians can investigate and address the issue(s) to get your Chevy running clean and smooth again.
Mass Airflow Sensor Problems
Your engine needs a specific air-fuel ratio to run properly. When your engine gets too much or too little oxygen, it may cause long-term damage. The most common cause is a malfunction with the oxygen sensor, causing the check engine light to come on. This issue can lead to poor fuel economy and severe engine damage if left unaddressed.
Issues with the Ignition Coil
The ignition coil is responsible for supplying electricity to your car’s spark plugs, allowing them to ignite the fuel in the engine. When it fails, your car may experience issues with starting or acceleration, and the check engine light can come on as a result. We can easily replace faulty coils if you experience this issue.
Electrical Troubles
Newer Chevy models are tech-savvy and rely on complex electrical systems. If there are problems with any of these systems, it can trigger your check engine light warning. Our expert technicians can perform a diagnostic test using a check engine light reader to pinpoint the exact issue, preventing potential breakdowns and more expensive repairs.
Schedule Your Chevy Service Today in Greenwood, SC
When your check engine light comes on, your Chevy is telling you something needs attention. Whether it’s a minor issue like a loose gas cap or something more serious like engine trouble, addressing the problem early can save you time, money, and stress down the road. At Legacy Chevrolet in Greenwood, SC, our expert technicians are here to diagnose and fix any issue quickly and accurately.
Looking for more than just diagnostics? Make us your one-stop Chevrolet service center! We offer everything from routine maintenance like oil changes in Greenwood to specialized services such as Greenwood wheel alignment. Plus, we regularly offer Chevy service coupons to help you save on essential services.
Conveniently located in Greenwood, we proudly serve drivers in nearby areas, including those searching for Greenville Chevrolet parts. Legacy Chevrolet is committed to keeping your vehicle running at its best. Schedule your service appointment today, and let us help you get back on the road with confidence!