Can you drive with exhaust emissions light on?
The exhaust emissions light, often referred to as the "check engine light," is a critical indicator on your vehicle's dashboard. It signals that something in your car's emissions system isn't functioning as it should. While it might be tempting to ignore this light, understanding its implications can save you from costly repairs and ensure your vehicle remains safe and environmentally friendly.
What Does the Exhaust Emissions Light Mean?
The exhaust emissions light is part of your car's onboard diagnostics system (OBD). When this light illuminates, it means the system has detected an issue with your vehicle's emissions control system. This could range from a minor problem, such as a loose gas cap, to more serious issues like a failing catalytic converter or oxygen sensor.
Is It Safe to Drive with the Exhaust Emissions Light On?
Driving with the exhaust emissions light on is not always safe, and the severity of the issue determines whether you should continue driving or seek immediate assistance. Here are some scenarios to consider:
- Steady Light: If the light is steady and your car seems to be running normally, it may indicate a minor issue. You can continue driving for a short period, but you should schedule a diagnostic check as soon as possible.
- Flashing Light: A flashing emissions light usually signals a severe problem, such as an engine misfire, which can cause damage to your catalytic converter. In this case, you should stop driving immediately and have your car inspected by a professional.
Potential Risks of Ignoring the Light
Ignoring the exhaust emissions light can lead to several problems, including:
- Increased Repair Costs: A minor issue can escalate into a major repair if left unchecked.
- Reduced Fuel Efficiency: Problems with the emissions system can cause your car to burn more fuel than necessary.
- Environmental Impact: A malfunctioning emissions system can release harmful pollutants into the atmosphere.
- Failed Emissions Test: If your state requires emissions testing, a lit emissions light will likely result in a failed test.
What Should You Do If the Light Comes On?
If your exhaust emissions light comes on, follow these steps:
- Check the Gas Cap: A loose or damaged gas cap is a common cause of the light turning on. Tighten it and see if the light goes off after a few drives.
- Monitor Your Car's Performance: Pay attention to any unusual sounds, smells, or changes in performance.
- Schedule a Diagnostic Test: Visit a trusted auto repair shop, like Kevin's Autos, to have your car's OBD system scanned for error codes. This will help pinpoint the issue.
Conclusion
While it might be tempting to ignore the exhaust emissions light, doing so can lead to more significant problems down the road. If the light comes on, take it as a sign to investigate and address the issue promptly. At Kevin's Autos, we specialize in diagnosing and repairing emissions-related problems to keep your car running smoothly and efficiently. Don't hesitate to reach out to us for professional assistance!
Frequently Asked Questions
How much does it cost to fix emission problems?
Repairs: - Minor repairs, like fixing a vacuum line or a small hose, could range from $50 to $200. - More extensive repairs, such as replacing a faulty sensor or a component in the emissions system, can cost between $200 and $1500 or more.
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.
Can I drive with an exhaust 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 do you pass exhaust emissions?
Your car will pass the MOT emissions test if the following criteria are met:
- NThere's no visible smoke coming out of the exhaust.
- NThe diesel emissions restrictions are not exceeded.
- NYour car's diesel particulate filter has not been removed or tampered with in any way.
- QSmoke is coming out of the exhaust.
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.
What triggers emissions light?
Emissions system fault
A component of this is the oxygen sensor, which can sense if the engine is burning too much or not enough fuel. This can trigger the CEL to indicate that the car is either running too rich or too lean, or that there's an issue with the sensor itself.
