Loading

Which is worse, flashing or solid check engine light?


The check engine light is one of the most common and dreaded indicators on your car's dashboard. It can signal anything from a minor issue to a serious problem that requires immediate attention. But what does it mean when the light is flashing versus staying solid? As the owner of Kevin's Autos, with years of experience in car maintenance and repair, I’m here to break it down for you.


What Does a Solid Check Engine Light Mean?


A solid check engine light typically indicates a non-urgent issue with your vehicle. While it’s not an emergency, it’s still important to address the problem as soon as possible to avoid further complications. Common causes of a solid check engine light include:



  • A loose or damaged gas cap

  • Faulty oxygen sensors

  • Issues with the catalytic converter

  • Problems with the mass airflow sensor

  • Worn-out spark plugs or ignition coils


If your check engine light is solid, you can usually continue driving for a short period, but you should schedule a diagnostic check with a trusted mechanic to identify and resolve the issue.


What Does a Flashing Check Engine Light Mean?


A flashing check engine light is a more serious warning. It indicates a severe issue that requires immediate attention, as continuing to drive could cause significant damage to your engine or other components. Common causes of a flashing check engine light include:



  • Engine misfires

  • Severe catalytic converter damage

  • Critical fuel or ignition system issues

  • Overheating or other engine-related emergencies


If your check engine light is flashing, pull over safely and turn off the engine as soon as possible. Driving with a flashing light can lead to costly repairs or even total engine failure.


How to Respond to a Check Engine Light


Whether your check engine light is solid or flashing, here’s what you should do:



  • Don’t panic: Stay calm and assess the situation.

  • Check the gas cap: A loose or damaged gas cap is a common cause of a solid light. Tighten it and see if the light turns off after a few drives.

  • Monitor your car’s performance: Pay attention to unusual noises, smells, or changes in performance.

  • Use an OBD-II scanner: If you have access to a diagnostic tool, you can retrieve the error code to understand the issue better.

  • Visit a mechanic: For a flashing light or unresolved solid light, take your car to a professional mechanic immediately.


Addressing the check engine light promptly can save you from costly repairs and ensure your vehicle remains safe and reliable.


Conclusion


In summary, a solid check engine light signals a less urgent issue that still requires attention, while a flashing light indicates a critical problem that demands immediate action. Ignoring either type of warning can lead to more severe damage and higher repair costs. At Kevin's Autos, we’re here to help you diagnose and fix any issues your car may have. Don’t hesitate to reach out if you need assistance!


Frequently Asked Questions

Why is my engine light on but nothing seems wrong?


Check engine lights can turn on for a number of reasons. Some can be minor problems such as tightening the gas cap, and others can be serious problems like engine issues. If your vehicle is running fine, the check engine light may signal a minor issue, but it is best to visit a mechanic to make sure.



How long can I drive with a solid check engine light?


While going somewhere, if you see the check engine light on and you can't immediately go to the repair shop, don't worry. It is safe to drive your car for 50 to 100 miles. If there is an issue with the sensor, turning the check light off takes some time.



Will a flashing check engine light clear itself?


Intermittent: The check engine light blinks for a while and then turns off by itself. This indicates a possible soft failure. It can be an issue with the car's wiring being cut or constantly being disconnected. Continuous Flashing: If the check engine light is constantly flashing, this indicates an emergency.



Is it OK to drive with flashing check engine light?


If the engine light is flashing, it's best to stop driving as soon as it's safe to do so. Continuing to drive can cause further damage to the engine or other components, leading to more expensive repairs. In general, you should: Pull Over Safely: Find a safe place to stop as soon as possible.



Why is my check engine light blinking to solid?


In summary, the reasons for a flashing check engine light that then stops can typically be categorized into five main types: sensor failures, fuel system issues, ignition system problems, emissions system issues, and mechanical engine failures.



How serious is a solid check engine light?


Depending on your car's make and model, a solid yellow or orange light may indicate lower severity. However, it's still a sign that you should make an appointment to diagnose and fix the problem. A flashing check engine light means you should take in your car ASAP.



How much does it cost to fix a flashing check engine light?


Cost of Fixing Flashing Engine Check Light
Repair Cost: if your engine component needs repair, you may have to pay the repair and labor costs ranging from $30 to $ 150$ depending on the car issue. Replacement of Parts: In most of cases, the replacement of parts is needed to remove the warning indication.



How long do you have to drive to clear a check engine light?


around 50 to 100 miles
The car's internal computer only resets after a set period where it checks all of its sensors once more. The reset can happen automatically after around 10 to 20 cycles. A cycle is a phase where you turn on the car and turn it off again. For other vehicles, you'll have to drive around 50 to 100 miles before it resets.



What is the most common cause of a flashing check engine light?


While the check engine light can definitely be indicative of serious problems, the most common cause of the flashing is usually an engine misfire.



Is a flashing engine light worse than a solid engine light?


A flashing check engine light indicates a much more serious issue. Most often it means that the engine is misfiring and unburned fuel is getting into the exhaust system. This raises the temperature of the catalytic converter and can cause critical damage.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.