I have a 2011 TSX Tech with automatic transaction. I have about 32K mi on the car. Everything is stock. Recently, when I pressed the gas pedal lightly to accelerate (around 40mph 2000rpm on local street or 60mph 2000rpm on highway), I could hear a high pitch whistling noise. It was not loud but was noticeable. The noise stopped when I eased off the gas pedal. The audio was off. So it was not from the speakers. I could not reproduce this all the time. But it seemed that I could reproduce it only when the AC was on. Do you think this is a transmission problem, AC problem, or something else?
Thanks for any help.
Thanks for any help.