High Pitched Whistle Under Load?

I've not really looked into this one but just wondered if anyone has come
across this before?

Accord 2.2 vTec auto, when accelerating under load a high pitched whistle
is noticable from the engine area at precisely 2000 - 2300 rpm, both below
and above this engine speed the noise is not there.

Also, it only seems to hapen under load, when accelerating on a downward
slope, the noise doesn't occur.

Any ideas before I have to get my hands dirty??

Cheers

 

A whining in the Honda Element was discussed in the EOC [Element Owners
Club] online...similar circumstances to your situation...I believe it
was the power steering fluid circulation, or loose hose, etc.

 

------------------------------------------

The YEAR and Mileage would be helpful . . . .

Slip the air filter out and take it for a short spin. Be sure to wipe
the inside of the air box SPOTLESS before you restart it. You'll know
right away if you've found something.

'Curly'

 

Mmmmm......... sounds an interesting and simple test, I'll try that later.

The car is a 1997 model and it's just done 70k miles.

 

Very tiny vaccuum leak?

 

Check and see if you have a homeless bosun squatting in your engine
compartment.

nb

 

Did you find the problem?. I have a Honda Civic 97 with a similar
problem. I took it to Honda, they checked everything and they dont know
what's wrong. Let me know please

 

almo, I'm still working on this one, I've narrowed it down to it being a
vacuum leak, I've sourced the vacuum system diagram for the correct model
and should get round to some serious digging around soon.

I'll report any of my findings here, don't worry...