Can I drive if my check engine light just came on?
The short answer is that you can generally continue driving with a check engine light on, but it's not recommended. The check engine light indicates an issue with your vehicle's emissions control system or other components, and ignoring it could lead to further damage and more expensive repairs down the line.
Understanding the Check Engine Light
The check engine light, also known as the malfunction indicator lamp (MIL), is a warning light that illuminates on your vehicle's dashboard when the onboard diagnostic system detects a problem. This system monitors various sensors and components in your car, and the light is triggered when it detects an issue that could affect your vehicle's emissions or performance.
The check engine light can be triggered by a wide range of issues, from a loose gas cap to a malfunctioning catalytic converter. Some problems are minor and won't significantly impact your driving, while others can be more serious and require immediate attention.
Driving with a Check Engine Light On
While you can generally continue driving with the check engine light on, it's not recommended to do so for an extended period of time. Driving with the light on can lead to further damage to your vehicle and potentially more expensive repairs. Here are a few things to consider:
- Safety: If the check engine light is accompanied by other warning lights or symptoms, such as the engine running rough or the vehicle losing power, it's best to have the issue addressed as soon as possible to ensure your safety on the road.
- Emissions: The check engine light is often related to the vehicle's emissions control system, and driving with the light on can result in increased emissions and potential fines in some areas.
- Fuel efficiency: A problem triggering the check engine light can also affect your vehicle's fuel efficiency, leading to higher fuel costs.
- Further damage: Ignoring the check engine light can allow the underlying problem to worsen, potentially leading to more extensive and costly repairs.
If the check engine light is on, it's best to have the issue diagnosed and addressed as soon as possible. This can be done by visiting a mechanic or using an OBD-II scanner to read the diagnostic trouble codes, which can help identify the specific problem.
Why did my check engine light come out of nowhere?
It could pop on because of something minor like a loose or faulty gas cap. It could also mean a major engine failure. When the light comes on, the computer stores a “trouble code” that gives information about the source of the problem.
Can I go to AutoZone for a check engine light?
You can use the Free AutoZone Fix Finder Service to get a complete report on your vehicle so you can fix the problem quickly and put your mind at ease.
How serious is a solid check engine light?
A solid check engine light is what most people encounter and may signal a minor or more complex repair. You should address this warning as soon as possible — however, it doesn't pose an immediate threat to your vehicle unless something is noticeably wrong.
Will a check engine light go off by itself?
Will your check engine light turn off by itself? In most cases, successfully repairing the issue that caused your light to come on will cause the check engine light to turn off automatically—but only after 10 to 20 “cycles”.
How far 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 first thing to check when the check engine light comes on?
Check your gas cap first. Many vehicles have a loose gas cap indicator that will be triggered before your check engine light comes on. If your gas cap is loose or the seal is not tight, the vapor leakage can cause your fuel system to trigger the check engine light.
How long can you drive with a check engine light on?
50-100 miles
However, it is a warning sign that should be addressed in time to avoid any potential damage. The most common question we get is how long can you drive with check engine light on? The answer is it is safe to drive from 50-100 miles.
What do I do if my check engine light just came on?
Once you notice your check engine light has come on, pay attention to how the car is driving. Does something feel off? If so, reroute yourself to the nearest mechanic to get the car checked out. If the car seems to be running fine, you can check a few things on your own before heading to the mechanic.
Should I pull over if check engine light is on?
If you notice anything, pull over and turn off your engine as soon as you find a safe place to stop. This is especially true if your light flashes or turns red.
How urgent is a check engine light?
It could be a more significant problem that can wait a few days, but should be investigated at your earliest convenience. If the check engine light is flashing, you have a major problem, and you need to stop driving the vehicle as soon as possible.
