High pitched whining noise at 30 mph and above

[WhipE350]

Check posts under me, see if it is like the flute noise myself and others are having. I found a parts car and just need to get with the guy to try out 3 different parts. If it is the flute/or air over a bottle noise then from what I've seen on many posts and forums it isn't always fixed with the same solution/or part. On mine since I can get all 3 parts I'm going to try to do process of elimination hoping the end result will be identifying the exact part...but again yours maybe something totally different.

[SeaNile31]

My 05 S whistles as well. I am 99% sure it is the side view mirrors on my car.

[huggybear52]

If it was caused by wind, don't you think the sound would vary with speed? And why does it only occur on certain drives? If I start the car and it does it from the beginning, it does it the entire length of that particular drive. It is only after the car is turned off and sits that it will go away. Also, it has never appeared half way through a drive. It is either all or nothing. To me it doesn't sound like a noise that air could make. It sounds more mechanical, unfortunately. Very high pitched though.

[Beelzy]

Are you using the heater or A/C when this noise is present?? For there is another
fan for that system and it can be a little noisy.

Kicks up dust from dirt roads like a Big Dog too!

[DLow]

The HVAC system is turned off. I am beginning to wonder if it is a pulley making the noise.

It might be time to take it to the shop.

[Dale_K]

I have a new fuel vent valve unit on order for a single tone "wooooo" sound that comes from the right front of the car under light load. The sound goes away instantly if I change the gas pedal position. My car also has issues when I fill the tank. Sometimes I can only get it 3/4 full.

To the OP, you might want to remove your oil fill cap with the motor running. If you can't get it off or find excessive vacuum your AOS would probably be the culprit. I've read elsewhere that this can create a screeching sound if air gets sucked past the RMS. Probably not the problem in your case but it's worth checking since it's so easy.

[WhipE350]

[QUOTE=Dale_K]I have a new fuel vent valve unit on order for a single tone "wooooo" sound that comes from the right front of the car under light load. The sound goes away instantly if I change the gas pedal position. My car also has issues when I fill the tank. Sometimes I can only get it 3/4 full.
QUOTE]

Exactly how it is for me, not clear if DLow is having same issue. I'm trying to get same parts you are but from a parts car down the street.

Please report back and let us know if it works. Also I have part numbers but can you post again what part you are getting, thanks.