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Hi Patty, several weeks ago, I returned from a business trip and my car was parked at the airport for about 10 days. A day or so after driving my van, the engine light came on. After a few cycles the light went off so I figured the problem fixed itself. Now, about 1 month later, the engine light came back on. What do you think could be causing the light to come on? It isn't blinking, just a steady light. Thanks.

Answers from the Automotive Experts

Amanda J. Pierce, MBA Linda, If a check engine light is on and goes off after a few key cycles it may be a loose gas cap setting an emmissions code. You can take your vehicle to an auto parts store that runs free diagnostic testing to determine the source of the light. AJ Pierce

Donna Burmeister, Service Manager at Classic Nissan I could be anything. Have it checked for codes, that will tell you what the problem is. Any certified dealer would be able to accommodate you.

Suzanne Grego, Technician at City of Philadelphia Fleet Management Linda, There are a number of things that can cause the check engine light to be on. Make sure your gas cap is on tight at all times. If you start your vehicle with the gas cap off or loose, sometimes it will set the light. If this is not the problem, you will have to take the vehicle to a qualified technician to have it properly diagnosed. Suzanne

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