Buzzing gear whine-like noise above 65mph

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Old 02-15-2015 | 11:08 AM
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Buzzing gear whine-like noise above 65mph

Video%201_zps54pr76i9.mp4

This is from my friend's 06 while she was driving home in the snow when it was around 25*F. Hopefully this vid will help more with diagnostic. (if video doesn't show, right click on the "broken image icon" and open image in a new tab. Sorry, I'm a noob with sharing photobucket vids)

I was thinking either it's the transmission whining from the cold, fuel pump, or mounts, but I digress. My car makes the exact same noise when under 40*F and it goes away completely after a full warm-up, but the noise is apparent since 0mph while her's is at 65mph after it's been warmed up.

Any help appreciated, thanks!
Old 02-17-2015 | 01:11 PM
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No idea, but it doesn't sound good. Could be something simple like a heat shield rattle though.
Old 02-17-2015 | 07:17 PM
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Could it possibly be a throw-out bearing? My friend made that suggestion on the issue. Either way, you're right, it doesn't sound good at all as mine didn't make a noise that bad since I replaced my ps pump.

On the other hand, my friend said the noise never came back since then, so for now it should be ok. Thanks for your input!
Old 02-18-2015 | 01:09 AM
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What section of the car is the noise coming from (Front, rear, wheels, transmission, diff, elsewhere)?

Have you done the simple checks already (like making sure all fluids have been checked and topped off accordingly or make sure nothing is dragging or loose)?

Last edited by JelloChex; 02-18-2015 at 04:24 PM.
Old 02-18-2015 | 08:45 AM
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Check wheel bearings too - I had a whine like that only at around 75 with some minor vibration and it was a rear wheel bearing.
Old 02-18-2015 | 09:56 AM
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That noise definitely isn't a good sign.
Old 02-18-2015 | 10:08 AM
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sounds like it happens right after she shifts. does it happen in a single gear at all speeds or any gear at that specific speed?
Old 02-18-2015 | 11:25 AM
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Originally Posted by JelloChex
What section of the car is the noise coming from (Front, rear, wheels, transmission, diff, elsewhere)?

Have you done the simple checks already (look like making sure all fluids have been checked and topped off accordingly or make sure nothing is dragging or loose)?
Waiting for a reply from her. She's way out of my range of assistance atm, so not much personal help I can give her.

Originally Posted by 04GG
Check wheel bearings too - I had a whine like that only at around 75 with some minor vibration and it was a rear wheel bearing.
Will do!

Originally Posted by odyss3y
sounds like it happens right after she shifts. does it happen in a single gear at all speeds or any gear at that specific speed?
Apparently it happens with 5th gear too, but not sure about the rest. I'll relay this info to her.

In general, the noise hasn't come back since then. Better safe than sorry, though.

Last edited by Kaimino; 02-18-2015 at 11:30 AM.
Old 02-18-2015 | 11:29 AM
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