G-Man wrote:
> Check the water pump.
>
>
> G-Man
>
>
> "Happy The Clown" <atombomb@my.pants> wrote in message
> news:44a6d53c$0$15023$a82e6bb9@orc.meganetnews.com ...
>
>>2000 Honda Accord EX-V6 56000km
>>It sounds similar to the alternator whine you get from your speakers when
>>you have a bad ground, except its coming from under the hood. Can't tell
>>where it is coming from, either from firewall side of engine or passenger
>>side. Changes pitch slightly when rpm's increase.
>>

I'll second that - possible water pump bearing, or other small bearing
(alternator, A/C compressor, power steering pump).