yertua

Hi guys. I finally bought a used 2015 NX 200T f-sport with 27K miles, still under warranty. I've noticed that If I turned to "ignition-on" Mode, I would hear a constant buzzing sound coming from my engine area. The buzzing sound also would be a little bit louder after but is gone after 10 seconds as I drove for a while and turn off engine as I pull in my garage. After reading the threads, I thought it would be a Vaccum regulator valve defect. So I bought my car to the dealer twice, but they said its "normal" sound and didn't replace anything. That buzzing sound is really annoying. Does anybody have this "buzzing sound" and is it normal? If its not normal, what should I tell the dealer how to fix it?? Thanks for the advice.

Danny200t

mine does the same thing so i’m pretty sure it’s normal. I believe it’s the ECU beside the intake box that’s making the buzzing noise.

yertua

Thanks for ur feedback. I was getting worried for a bit.