Hey, all. First time poster here. Thanks for a great site. I did some searching but didn't find an answer yet. There was some gas pedal harmonic vibration mention but that seemed associated with the V8. Anyway, we've got a lightly used 2007 V6 4R Sport that produces some high frequency vibration (like a buzz) between about 3,000 and 3,500 rpm. It's most apparent under hard accel - it's very faint when just running the engine up. Under acceleration, it can be felt through the steering wheel but seems engine related. I have felt lots of tire imbalance vibrations and this is not like that. Please just tell me others have this too and I will get on with loving my "new" vehicle.