Back to all

The Light Nobody Wants to See (Check Engine Light)

November 5, 2023

You've probably had your Check Engine Light go on.  Then it goes off and you figure, hey, whatever the problem was, it's gone now and I don't have to worry about it.  Well, the problem may have gone away and it may not have.

Your vehicle likely has one of these warning lights on the instrument panel: an amber light that looks like an engine or reads "Check Engine" or "Service Vehicle Soon."  If that light comes on and stays on, it usually means there's something amiss but not urgently in need of service.  (Now if it's blinking, that's another story that we'll deal with in a minute.)

Sometimes when it comes on and stays steadily lit, the problem will go away and the light will go out.  Sometimes it will stay on until you get the problem fixed.  Either way, the engine's computer will store a code that can provide clues to what's not working—or wasn't working—the way it's supposed to.

If you are just dying to know what that code is, you can buy a little code reader or take your vehicle to an auto parts store and they'll read it.  Problem is, the code offers so many options that unless you are a trained technician, you probably won't have a clue what those codes mean. 

So if you want to be sure, take it to your vehicle repair facility and have them check it.  Technicians are trained to decipher the codes and, using their experience and other diagnostic equipment, can get to the root of the problem and fix it. 

As we mentioned before, if that Check Engine light comes on and is blinking, it means a more serious engine malfunction that can damage expensive components such as the catalytic converter and even the engine itself.  It's important to have that checked by a professional as soon as possible. 

Tuffy Tire & Auto Service Columbus
6853 Cleveland Avenue
Columbus, Ohio 43231
614-895-1588
http://www.tuffycolumbus-clevelandave.com

More articles from Tuffy Columbus (Cleveland Ave.)

Singing a Different Tune (Up) (Tune Ups)

June 29, 2025

Engines required a lot more maintenance in earlier times. You'd have to have your spark plugs, wires, rotors, caps, distributor points, fuel and air filters changed periodically. There were mechanical adjustments of a vehicle's timing, dwell, spark gap and idle mixture, too. Unless you like to ... More

Growing Old Together (Maintaining an Older Vehicle)

June 22, 2025

More and more of us are hanging on to our vehicles longer. A company by the name of HIS Markit recently released a report that shows the average age of light vehicles in the U.S. is now 11.8 years. Light vehicles are cars, SUVs (sport utility vehicles) and CUVs (compact utility vehicles). In C... More

Chilly Warning (Diagnosing a Noise in Cold Vehicle)

June 16, 2025

When the weather gets colder, sometimes the noises your vehicle makes will change. For example, you may notice a whining sound when you get going in the morning. It may go away when the vehicle warms up, but it's best not to ignore that sound because it could be a warning of worse things to com... More