It can be nerve-wracking when the check engine light suddenly brightens your dashboard. Some truck drivers choose to ignore the light instead of heading straight to the fleet mechanic to determine if equipment repair is necessary, but is it safe to do that? Here’s what you should know about this common problem.

What It Means When the Check Engine Light Comes On

An illuminated check engine light is a warning that there’s something wrong—although it’s not necessarily a serious problem. This alert can develop for a number of reasons, from engine damage to a loose gas cap.

Sometimes it’s because a specific part needs to be replaced, such as the fuel injector or thermostat. Technicians can determine the cause by scanning the vehicle’s built-in log of trouble codes, which will tell them what type of equipment repair service is necessary.

When to Get Help

While you don’t need to stop driving the vehicle right away, you should seek assistance from an equipment repair mechanic at your earliest convenience. In some cases, the light may blink rapidly instead of remaining constantly lit. That’s a sign that there’s a serious issue for a professional to check promptly—and may be due to a misfiring engine.

Steady lights are less likely to be major problems but should still be inspected as soon as possible to avoid hefty repair bills or more serious situations in the future.

How It Can Cause Harm

Allowing a check engine light to go unchecked can be problematic in the long term. Some drivers may put it off because they’re concerned about the associated expenses, while those who have old trucks with lots of mileage may want to drive as much as they possibly can before it’s too late to salvage the vehicle.

It won’t pass the DOT inspection if it’s not resolved, however. And if it’s due to an engine problem, the vehicle may be overheating, using too much fuel, and driving up your costs by increasing your gas mileage and potentially worsening an existing problem.

If the check engine light suddenly turns on, trust in the professionals at MCL Mobile Fleet Services in Norcross, GA, to resolve your concerns. The family-owned company offers emergency roadside service for your convenience, including fleet maintenance, equipment repairs, and DOT inspections. Visit the website to find out more or call the ASE®-certified team at (470) 321-4147 to schedule an appointment.