Few things cause drivers more anxiety than seeing the check engine light pop up on the dashboard. While it’s tempting to ignore it and hope it goes away, the way the light behaves actually tells you a lot about the urgency of the problem.
At L.A.W. Inc. Auto Repair in Nashville, we want to help drivers understand the difference between a flashing check engine light and a solid check engine light—and why both deserve your attention.
A Solid Check Engine Light
If your check engine light comes on and stays solid, it usually means the onboard computer has detected an issue, but it’s not an immediate emergency. Common causes include:
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A loose or faulty gas cap
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A malfunctioning oxygen sensor
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Issues with spark plugs or ignition coils
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Problems with the catalytic converter
While your car may continue to drive normally, a solid light means you should schedule service soon. Ignoring it can lead to reduced fuel economy, increased emissions, and potentially more expensive repairs down the road.
A Flashing Check Engine Light
A flashing check engine light is far more serious. This warning typically indicates an active misfire in the engine—meaning unburned fuel is entering the exhaust system. Left unchecked, this can quickly overheat and destroy your catalytic converter, one of the most expensive components of your car.
If your check engine light is flashing:
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Stop driving immediately if possible
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Have the vehicle towed to a trusted repair shop
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Avoid trying to “push through” the problem—it can cause severe engine damage
Why You Shouldn’t Ignore Either
Whether solid or flashing, the check engine light is your car’s way of asking for help. Even minor issues can snowball into major breakdowns if ignored. Addressing the problem early keeps your car safe, reliable, and efficient.
Nashville Drivers: Trust the Experts at L.A.W. Inc.
At L.A.W. Inc. Auto Repair, our diagnostic tools can quickly pinpoint the cause of your check engine light, saving you time, stress, and money. From simple fixes like gas caps to advanced engine repairs, we’ve been helping Nashville drivers since 1975.