Back to all

The Light Nobody Wants to See (Check Engine Light)

September 29, 2024

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 Elyria (Leona St)
649 Leona St.
Elyria, Ohio 44035
(440) 324-7484

More articles from Tuffy Elyria (Leona St.)

Alternator Facts (Failing Alternator)

October 12, 2025

If you notice that your headlights are flickering at night, that's something to pay attention to. While there could be many different things that could cause that problem, one possibility is your vehicle's alternator. The alternator takes mechanical energy from the engine and turns it into electr... More

Tacky or Techie? The Tachometer.

October 5, 2025

There's a gauge that many vehicles have that says RPM on it. And there are a lot of people who either don't pay any attention to it or don't even know what it is. Here's why it's a good gauge to know about. It's called a tachometer, and that "RPM" label means it is measuring how many revolutions... More

T for Transmission, T for Trouble (Automatic Transmission Trouble Signs)

September 28, 2025

One of the hardest working components of your vehicle is its transmission, shifting gears up and down when you need it to. The transmission is vital to your vehicle driving properly, and if you start to see signs of problems in it, its best to have them fixed earlier rather than later. (Since ne... More