Pwede ba ito mangyari? Ngayon kasi parang may sumasabay sa throttle ng makina even at idle (so I guess its really isolated sa engine).

Do you know the noise when you are reversing your car at a certain speed? Parang ganun ang tunog eh. Just to be sure, I turned off all electronics sa car but the problem is still there? Ano kaya ang culprit and what should I do?

TIA