Wierd Buzzing noise
 

Wifes 08 green line with 60,000 miles.

In the last week or so it has started to make a rather unique noise. I have access to the mechanics at work and we put it on the computer and no codes.

It is engine speed, load and transmission related. in neutral or park reving the engine the problem cannot be replicated. however driving I can replicate the problem under light loads while the car is moving, any gear just about any speed

It sounds like a high speed flutter between 1500-2500 rpm. while moving in neutral, no sound, under heavy acceleration no noise.

I'm not sure if its transmission related or related to the generator/motor


found a shop willing to look at it. so we'll see what they diagnose. took the service manager for ride so he could hear it so he can replicate for the tech.

Re: Wierd Buzzing noise
 

A re-record without the glass would be helpful. Sounds like you might just have to replace a fan or something. Can't exactly make out what kind of cooler you have so I can't really say for certain.