You’re driving down the highway when your check engine light comes on. But how urgent is this to address? There are several problems that could be prompting this signal to appear, as described in the guide below. Some come with easy fixes while others will require the help of an engine repair specialist.

What Prompts the Check Engine Light to Turn On?

1. Gas Cap

Sometimes, this light has nothing to do with your engine. If your gas cap isn’t on correctly or is missing entirely, it skews the pressure inside your gas tank. This then triggers an alert because a change in pressure may also mean an emissions leak. Therefore, pull over to the side of the road to make sure your cap is secured. If the light remains on after a few days, or goes off but comes back on again, seek engine repair.

2. Catalytic Converter

Your catalytic converter converts toxic car exhaust emissions into carbon dioxide. If it has an issue, it could prevent your car from accelerating as quickly and will likely lower your gas mileage; your vehicle will also start to pump out harmful carbon monoxide.

3. Spark Plugs

Spark plugs create the electrical charge needed to start your car’s ignition to keep your vehicle running. If the check engine light appears alongside a jerking feeling every time you try to accelerate, it could be that you need new ones. This usually happens every 20,000 to 100,000 miles depending on how old your vehicle is.

Kelly’s Auto Repair, based in Lincoln, NE, has helped automobile owners from the Greater Nebraska area keep their cars safe and roadworthy for over 25 years. Bring your car, light truck, or RV into them and get exceptional service from highly-trained, friendly technicians. Book an engine repair appointment by calling (402) 467-4602. Visit them on Facebook to read more auto maintenance tips, as well as satisfied customer reviews.