2004 7th Gen Euro cruising noises

[Harbournet]

Hi all,

Just bought a 2nd hand 2004 Euro with 35k on the odo....all in all a very tidy car. Only annoyance i have with the car is at 80km/h and above under light throttle application i hear a faint wistle sound coming from the front somewhere....as soon as i take my foot off the throttle it's gone....but even the slightlest pressure back on....it comes back. It doensn't make this sound at low speed or under mid to hard acceleration....just at cruising speeds of 80km/h or so and above. It's an auto btw. Since the engine and drive train are so quiet at speed i thought it may be some belt or pulley noise??....anyone experienced the same thing with their Euro? If so - what was the fix?

Cheers,

Harbour.

[sodhi90]

Does is sound like its in the front towards the passenger side?

[JN7]

im getting the same noise and sodhi, it does sound like its from the passenger sied

[felixd]

hmm its probably just a wind effect lol turn up the music its all gone

[Harbournet]

Ya it's coming from the passenger side up front.

[Harbournet]

it's not wind effect - like i said.....if i take my foot off the throttle, sound goes instantly. I hope this ain't an expensive fix...it's gonna drive me nutz!

[sodhi90]

yep i have an 03 5AT Euro and i get the noise on the highway when the car is in 5th gear , only when accelerating and yes it goes away when i lift of the pedal, its like a whining noise. No idea what it is but it annoys me lol

[chrome]

Try this:

With the car park, hood up... turn the ignition key to ON (just before start). Engine must not be running.

Lightly depress the accelerator pedal. Do you hear a high pitch whine/whistle from the engine? Is that the sound you are hearing? That's the electronic throttle motor making the sound and is perfectly normal.

[Bodgy Racing Developments]

che bruh its your torque converter i rekon.

[Harbournet]

After some thought about it....only after certain speed...the torque converter locks up in 5th, like in any auto. Therefore this sounds like it must be a noise coming from the torque converter somewhere...? Sound logic?
The car doesn't make noise at any other time, during accelerating or slowing down...or after it kicks back a gear or 2 to overtake. Must be something to do with the final drive after the converter locks up.

Anyone with some idea of how auto's work - feel free to add your 2 cents.

[aaronng]

Changed your ATF fluid yet? If it is a 2004, it would be recommended to change ATF. Personally I'd change it every 2 years. Honda recommends much longer at 6 years.

[Harbournet]

No i haven't even looked at the ATF yet....just got the car yesterday. Could old/low level ATF cause this kind of whistling noise? I hope this is all it is.

Chrome:- I doubt it's the drive-by-wire dc motor...cause then it would be happening all the time...it only happens above 80km/h or so....when accelerating in lower gears or from idle...no noise.