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banging sound and f...
 
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banging sound and flashing CEL

  

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Hey Scotty,.

My 2017 Hyundai Sonata with 46,726 miles has engine flashing and when I accelerate over 10 mph, I feel like a bang sound and bad gas mileage. I stop driving it, people has different opinions, what you think?


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Check codes and live data, but if the sound you describe is the engine knocking internally it's pretty much all over. (Did it run low on oil?)


No, Just I changed the oil recently. 


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