So here's the scoop:

I've got a whine from the engine, directly related to revs. It occurs at all rpm levels. Sounds power-steering related but doesn't vary at all with turning the wheel, even lock to lock, and it's a bit quieter than I'd expect from a ps pump. It sounds more belt related. I'd replaced the alternator a while back (after it was def. toast) and the sound went away (i think) for a day or two but came right back. I didn't replace any belts or pulley's with the alt. Any ideas?

 

My power steering pump makes a really annoying whine/screech that sounds like a supercharger sometimes. Same situation, occurs at all RPM levels pretty much. For me it's the bearings inside the pump going bad. When I did my timing belt last week I spun the pump by hand and could hear it clicking.

So, I'd say power steering pump.

 

Are you running any big amps and subs?

 

this is the sound of a bad ground usualy do to a aftermarket stero

 

my dad's Belair does that, it whines through the speakers like a supercharger, my dad loves it. he says it's a poorman's blower.

 

Im not sure why you are saying speakers when he said its coming from the engine compartment.

Btw, its a blown turbo (assuming your 1.8t)

 

Def. not speakers.

I thought briefly that it could be the turbo but it reacts too quickly and directly to the throttle. I have a very light weight fly wheel so the car revs and drops back VERY quickly (for an A4) but the turbo doesn't react as quickly (lag and residual spool). I can hear my turbo spool and wind down but the two sounds are definitely separate.

 

Does it sound like this?





*Click on the pic*

If so I dont know what it is I'm trying to figure it out myself SMH

 

That sounds like my car when the power steering fluid got really low.

 

Does it sound like this?

http://www.youtube.com/watch?v=Sv1hO...eature=related