Back to all

Check Engine Light Diagnosis at Tuffy Joliet (South Plainfield)

August 3, 2022

Hello Joliet . Have you ever had your Check Engine light come on? Did you panic? Or just scowl and ignore it? What should you do? Pull to the side of the road and call a tow truck? Or just keep driving? What does that little light really mean for Joliet drivers?

First of all, the Check Engine or Service Engine light does indicate that something is wrong. That's why it is called a warning light. But the something that is wrong might be a loose gas cap, or it might be serious vehicle engine trouble. That's why Joliet residents often don't know how to respond to it.

The Check Engine light has two modes: it flashes or it stays on. A flashing light is serious. You need to get your vehicle to Tuffy Joliet (South Plainfield) in Joliet ASAP. No, you don't need to call a tow truck, but, yes, you can't wait to get your car serviced. If your Check Engine light is on and flashing, you should not tow trailers, haul heavy loads or drive at Illinois freeway speeds. Any of these could lead to serious damage that could result in repair bills for Joliet drivers who ignore it.

steady Check Engine light is less serious, but that doesn't mean it can be ignored. You should plan to get your vehicle inspected at your local Joliet automotive service center at the first realistic opportunity. Not the first convenient opportunity, but the first realistic one.

Modern automobiles have a computer in the engine that monitors and controls many of the engine functions. When the computer senses something wrong, it first tries to fix the problem itself by adjusting the vehicle engine. If the problem persists, the computer signals the Check Engine light to come on.

This process stores a trouble code inside the vehicle engine's computer. Your service advisor at Tuffy Joliet (South Plainfield) scans the computer and reads the code. This does not tell the technician exactly what is wrong with the car, but it gives him a good idea as to where to start looking.

Of course, the best thing to do is to keep that pesky Check Engine light from coming on in the first place. Good vehicle care and routine preventive maintenance go a long way to keeping your vehicle out of your Joliet auto repair shop. But, if that light does come on, be smart. Take care of the problem early, and take care of it professionally.

Tuffy Joliet (South Plainfield)
2031 SR 59
Joliet, Illinois 60586
815-436-1829

 

More articles from Tuffy Joliet

Read a Good Tire Lately? (Tire Wear)

September 14, 2025

There's lots of good information to read in books and online. You might not know that you can also "read" your tires and learn a lot about what shape they're in and if they are in need of attention. It's important to know how your tires are doing because a tire failure can be very dangerous to y... More

Move it or Lose It (Dormant Vehicles)

September 7, 2025

When it comes to your vehicle, driving it too much can cause some issues. But what about not driving a vehicle enough? That has consequences as well. Here are a few things that can happen if a vehicle isn't driven enough. When the engine doesn't operate, the oil isn't lubricating. That means so... More

Always on Guard (TMPS)

August 31, 2025

One of the most important things you can do to keep your vehicle running safely is to make sure your tires are properly inflated. If one or more is vastly over- or underinflated, that has the potential to cause major handling problems and may result in a dangerous accident. All vehicles in recen... More