Why Is My Engine Light On?

January 24, 2022 5:15 pm Published by Leave your thoughts

Everyone’s been there: You’re driving along, everything is going fine as usual and then the dreaded check engine light flickers to life—seemingly for no reason. You wonder: “Why is my engine light turned on?” You probably have some choice words for the vehicle, and then you keep driving to your destination.

…And maybe you forget all about the light. After all, the car’s still running, so what’s the big deal?

Therein lies the problem. It could be next to nothing, but it could mean serious malfunction. To find out more about what a check engine light indicates, read on.

What does my engine light mean?

Cars have onboard diagnostic systems which over the years have become more sophisticated. When there’s an issue this system finds that it can’t correct, the computer will turn on the indicator for the check engine light. This is linked to a trouble code that will be stored in the vehicle’s system’s memory.

The code will likely point you in the direction of the problem; however, it does require a professional to read the diagnosis and repair the issue.

What should I do now?

If the check engine light stays on steadily, that usually means the problem should be attended to but isn’t an emergency. If it blinks, on the other hand, that means there’s something that needs immediate attention.

What requires immediate attention? A variety of things including engine misfiring that causes fuel to be dumped into the exhaust system, damaging the catalytic converter. While you should never ignore a check engine light, you should take a blinking indicator very seriously.

The typical solid-color indicator might be a sign of another issue such as the car releasing higher levels of pollutants. Either way, check the vehicle for any problem that needs immediate attention. This includes monitoring the oil pressure, looking for overheating and listening for engine noise. Once you’ve done that, take your car into a trusted auto mechanic.

Common reasons for a check engine light to be on

One reason why your engine light turned on is that the oxygen sensors have failed. These are subject to high temperatures and fail usually about once every 80,000 miles. Failure to replace an oxygen sensor will lead to worse fuel mileage and could damage the spark plugs or catalytic converter.

Another common reason for the light to pop on is that the gas cap is loose, damaged or missing. Fortunately, this problem can be fixed quickly by putting the gas cap back on or having it replaced.

If you have a bad catalytic converter, this could trigger the check engine light. Failure to replace the catalytic converter could mean that your car fails its emission test and could lead to worse fuel economy.

We hope this addresses what your engine light means. The next time you need an auto mechanic, turn to Ice Cold Auto Repair. From brake services to tune-ups, alignments and more, we’re here to help drivers get back on the road. We offer reasonable prices and top-notch service. Contact us today to find out more.

Categorised in:

This post was written by Writer

Leave a Reply

Your email address will not be published. Required fields are marked *