When im on the highway and step on it, as soon as i get to about 90-100 mph the car starts buzzing like crazy. It doesnt it do it all the time but it also doesnt seem like its hurting the performance either. It really hard to tell exactly where in the car its coming from since its hella loud. Anybody have any ideas what it might be?

 

maybe transfer case going

 

figures, thx for the quick reply

 

I have my doubts transfer cases are supposed to whine not buzz.

I had a friend with a WRX that buzzed real loud at high speeds, ended up being his mirrors were howling I'm not sure if the evo will do that.

 

yea its def. not a whine. More of just a buzzzzz. It sounds like something loose but its rattling the whole car. Any others with ideas.

 

ok i drove it today and noticed it is coming from the rear. The transfer case is located in the front right?

 

Just to be safe..

Check your wheel nuts are tight. Extreme vibration has occurred to other members when the lug nuts are loose.

The rear wing could also vibrate though it has this adhesive tape under it that sucks up most vibrations. Maybe it got a little loose?

 

yea, trunk and lugs are fine. I do know that when i brake on the highway the car shakes a bit. I think my rotors might be a little warped. But would that cause the rear to buzz or just shake just like when im braking?

 

Check your wheel bearings, rotors, axles, rear diff fluid level, transfer case fluid level, tranny fluid level, make sure all plastic undertrays are secured, and stop driving so damn fast on public roads