Question about Hyundai Motor 2003 Elantra

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Check engine light on all time. Seem like the engine sound still OK. What cause and how to fixed.

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The most likely cause is a faulty sensor. On GM vehicles it is most of the time the O2 sensor. On newer vehicles it could be anything from the gas cap seal is not tight enough to a small vacuum leak. The best thing is to bring it to a local Auto Zone or similar parts store. Most have code readers and will retrieve the codes for free. From this you can find out what the cause is, repair it and then clear the codes. I hope this helps.

Posted on Feb 03, 2010

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Posted on Jan 02, 2017

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