AskPatty Certified Female Friendly Logo
just got in my car and my check engine light is on what could it be?

Answers from the Automotive Experts

Colleen McGee, Driving Instructor at Americas Driving School Hi Mataline! The "check engine" light is connected to the "On Board diagnostics" (OBD) system which detects problems with the emissions of your vehicle. It might be that your gas cap is loose. One time I had a driving student push the gas pedal quite hard while the vehicle was in neutral. This caused the light to stay on for about a day or so before the system reset itself. If the light stays on have a mechanic check it out at your convenience, if it turns off then you have nothing to worry about. Happy, Safe driving! Colleen M

Kristin Brocoff, Director of Corporate Communications at CarMD.com Mataline, there are hundreds of reasons for the check engine light. Some are as simple as a loose gas cap while others are very serious with the potential to negatively impact fuel economy and safety. It's best to have it diagnosed and repaired as soon as possible. You can do it yourself with consumer products such as the CarMD Vehicle Health System or have it looked at by a qualified mechanic. The most common reason for a check engine light is a faulty oxygen sensor, which can negatively impact MPG by up to 40%. You can also get a reliability score and common reasons for your vehicle's check engine light at www.carmd.com/scorecard. Best, Kristin Brocoff, CarMD, www.carmd.com

Contribute to this question:


blog comments powered by Disqus

Related Dodge Avenger FAQs


  • The gas cap light of my Dodge Avenger stays on. I put a new factory cap on but it didn't ... Read More
  • I filled all the tires on my 2010 Dodge four cylinder Avenger R/T to the approximate PSI ... Read More
  • I have a 2011 Dodge Avenger, I got the gas cap alert a few days ago and replaced the Gas ... Read More
  • I'm trying to figure out why my cruise control quit. It comes on at the switch but the ... Read More
  • Have a 97 Avenger 2.5 V6 with a water pump problem. Realistically what would one expect ... Read More
  • I just bought an 08 Dodge Avenger, when it is warm the car starts with no problems. ... Read More
  • Hello, My car has dropped from the normal 22 mpg to anywhere from 16 or 18 mpg ... Read More
  • When stuck in snow car won't spin tires it's like the car won't give it gas to make the ... Read More
  • Air bag light on then the gas cap light cane on the next day car have 5 year warranty ... Read More
  • My dodge avenger 2011 car check engine light came on and off and two days later my car ... Read More

Need Car Advice?

Ask The Experts!

Find Cars For Sale

Help Our Charities