Is it OK to drive car with emissions light on?
The emissions light, often represented by a small engine icon on your dashboard, is part of your car's onboard diagnostics system. When it illuminates, it’s signaling that something in your vehicle’s emissions system isn’t functioning as it should. But what does this mean for your car, and is it safe to keep driving? Let’s dive into the details.
What Does the Emissions Light Indicate?
The emissions light, also known as the "check engine light," can be triggered by a variety of issues. These range from minor problems to more serious concerns that could affect your car's performance or even its safety. Common causes include:
- A loose or damaged gas cap, which can cause fuel vapors to escape.
- A malfunctioning oxygen sensor, which monitors the air-fuel mixture in your engine.
- A failing catalytic converter, which helps reduce harmful emissions.
- Issues with the spark plugs or ignition system, which can affect engine efficiency.
While some of these issues are minor, others can lead to reduced fuel efficiency, increased emissions, or even long-term damage to your engine if left unaddressed.
Is It Safe to Drive with the Emissions Light On?
In most cases, it’s safe to drive your car for a short period with the emissions light on, but there are important caveats to consider:
- If the light is steady and your car seems to be running normally, you can likely continue driving for a short time. However, you should schedule a diagnostic check as soon as possible to identify and address the issue.
- If the light is flashing, this indicates a more serious problem, such as a misfire, which could damage your catalytic converter. In this case, you should stop driving immediately and have your car towed to a repair shop.
- Pay attention to any other symptoms, such as reduced power, strange noises, or unusual smells. These could indicate a more severe issue that requires immediate attention.
What Should You Do When the Emissions Light Comes On?
Here’s a step-by-step guide to follow if your emissions light turns on:
- Check your gas cap: A loose or damaged gas cap is a common cause of the emissions light. Tighten it securely and see if the light turns off after a few drives.
- Monitor your car’s performance: If the car is running smoothly and the light is steady, you can continue driving but should schedule a diagnostic check soon.
- Visit a trusted mechanic: Bring your car to a professional auto repair shop, like Kevin’s Autos, for a thorough diagnostic test. Modern vehicles are equipped with advanced systems that require specialized tools to pinpoint the exact issue.
Why You Shouldn’t Ignore the Emissions Light
Ignoring the emissions light can lead to more significant problems down the road. For example:
- Minor issues, like a faulty oxygen sensor, can reduce fuel efficiency and cost you more at the pump.
- Serious problems, like a failing catalytic converter, can result in expensive repairs if not addressed promptly.
- Driving with unresolved emissions issues can increase your car’s environmental impact by releasing more pollutants into the air.
Conclusion
While it may be tempting to ignore the emissions light, doing so can lead to costly repairs and environmental harm. If your emissions light comes on, take a moment to assess the situation. For minor issues, you may be able to continue driving temporarily, but it’s always best to have your car inspected by a professional. At Kevin’s Autos, we specialize in diagnosing and repairing emissions-related issues to keep your car running smoothly and efficiently. Don’t hesitate to reach out to us for expert advice and service!
Frequently Asked Questions
How long can you drive with an emissions light on?
The answer is it is safe to drive from 50-100 miles. To maintain your car's health, it is always better to get it checked immediately when you see the check engine light.
What triggers emissions light?
The emissions/exhaust system is the most likely culprit for many check engine lights being illuminated. There could be an exhaust leak or a problem with the catalytic converter. The mass airflow sensor (MAF) is another sensor that is easily tripped or can fail.
How to pass emissions with light on?
You Won't Pass Inspection with Check Engine Light On
In any case, never try to pass inspection with check engine light on. Instead, get your vehicle repaired at a Jiffy Lube service center before you head to the emissions test. Usually, even having the MIL illuminated is grounds for a failed test.
How much does it cost to fix emission problems?
A: If your vehicle failed emission testing and it needs repairing, then the cost will depend on the exact cause, but the repair work typically starts around $200. Replacing your exhaust system depends on the type of car you drive, but that work starts at approximately $175.
Can I still drive my car if it says emissions system problem?
It's not recommended to drive with the Check Emission System warning light on until you know the cause.
Is it safe to drive with the emission warning light on?
Generally, unless there are issues with your engine and you only have a solid amber-coloured EML, you can continue driving to your destination. Have your vehicle looked at by an expert as soon as possible to avoid risking further damage to your car.
How much does it cost to fix an emission system?
If your vehicle failed emission testing and it needs repairing, then the cost will depend on the exact cause, but the repair work typically starts around $200. Replacing your exhaust system depends on the type of car you drive, but that work starts at approximately $175.
Is emissions light serious?
Check whether the engine light is constant or flashing
A solid glow tells you that you should have your vehicle inspected soon, however a blinking CEL is a greater cause for concern and indicates that your vehicle should be inspected by a professional immediately.
How much to fix emission problems?
A: If your vehicle failed emission testing and it needs repairing, then the cost will depend on the exact cause, but the repair work typically starts around $200. Replacing your exhaust system depends on the type of car you drive, but that work starts at approximately $175.
How to fix engine emissions warning light?
Diagnosing & Fixing the Problem
- Tighten or change your gas cap. Check the rubber seal on the inside of the gas cap to make sure there aren't any cracks or damage.
- Replace your air filter.
- Change faulty oxygen sensors.
- Take your vehicle to a mechanic.
