I have a 2014 Accent GLS.

For the longest time I've had a buzzing sound coming from the engine, that gets louder and faster at acceleration. When I let go of the gas it slows does, and stops for a sec before starting up again. It's loudest when I start it cold and becomes quieter when it warms up but still there. It's incredibly annoying.

Checked Web ppl have mentioned it might be fuel pump.

i'm taking it in for oil change Wednesday and will tell the dealer about it but hoped I could get some insight if it is a known or common issue so they don't give me the run around.