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I have been doing all the proper caring for my 2013 Dodge Avenger like oil changes every 3000 to 5000 miles. Making sure my gas tank is always topped off with fuel 87 grade sometimes 91 grade. I also use 44k for my fuel as well. Two days ago my check engine light is on. I thought I was taking care of my car. I have driven it and no problems or trouble. Why could my check engine light be on?

Answers from the Automotive Experts

Amanda J. Pierce, MBA You are under warranty, I would see your local dealership

Amy Mattinat, Owner and Author at Auto Craftsmen Ltd Kudos to you Debra for taking car of your car so well. Make sure you are using the fuel grade that your owners manual calls for. There is a reason different engines need different grades of fuel. There are a large number of reasons the check engine light could be on. It could be as simple as he gas cap was not tightened properly and air is getting into the system. It could be that one of the many sensors that regulate the engine has quit working. I recommend you take it into the shop and have them hook their scan tool to your Avenger's computer and see what it finds.

Gelina Aquilina, Service Advisor / Mechanic at There are MILLIONS of reasons a check engine light could come on. It could be something as simple as a gas cap issue to a misfire. A vehicle that new should go back to the dealership to be checked, or call around to find a shop that will check why the light is on. Make sure they do it for free!

Helaine Kurot, Owner/Technician at 360 Automotive There are many things that can cause a check engine light to come on. Take it back to the dealer, as the car should be under warranty.

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