# Highway-speed hum in 2002 Golf TDI

**URL:** <https://community.cartalk.com/t/highway-speed-hum-in-2002-golf-tdi/80726>\
**Category:** Maintenance/Repairs\
**Tags:** volkswagen\
**Created:** [August 4, 2013, 11:15pm UTC](https://community.cartalk.com/t/highway-speed-hum-in-2002-golf-tdi/80726 "2013-08-04T23:15:30Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Hawthorne](https://avatars.discourse-cdn.com/v4/letter/h/c89c15/32.png) [@Hawthorne](https://community.cartalk.com/u/Hawthorne)\
**Post date:** [August 4, 2013, 11:15pm UTC](https://community.cartalk.com/t/highway-speed-hum-in-2002-golf-tdi/80726/1 "2013-08-04T23:15:30Z")

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I’ve got something that sounds a lot like wind noise at specific highway speeds, except that it isn’t. Starting at about 60 mph and ending about 70, there’s a hum/buzz that sounds a lot like blowing into a 2L bottle – about that pitch, and it gets louder/softer with speed, but doesn’t change pitch. But not wind noise, because if I put in the clutch, the noise vanishes. This may be psychological, but it seems to cause a bit of drag/friction – it seems to take more power to maintain speed in the humming-zone than on either side.

- not wheel alignment or tire issues. Just got new tires, replaced a bunch of suspension bits (for unrelated reasons), good alignment. The noise didn’t change at all.
- not wheel bearings; sound only when under power.

Something else in the drive train? Anything I can say to a mechanic to get them looking in the right direction?  
Thanks!