weird noise?

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.

 

Check the water pump.


G-Man

 

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

 

I was gonna say fluid in power steering pump is low, but isn't that on
the driver's side?

 

I don't know if Accord's have them but, my CR-V had a whining noise as well
and ended up being a A/C idler pulley bearing. Got the part at the Acura
dealer for around $35. Took about 30 minutes to install and a skinned
knuckle or two

 

It's an alternator. the delphi units on the v-6 are famous for going
south.
Herb