Whining Noise Not Consistent with Revs
Good afternoon all,
I have an alfa 159 tbi, ever since owning the car from June 2014, the car has made a whining noise when driving, the sound only increases with road speed, not engine revs. It gets louder the faster I go, then if I go into neutral even at say 70, the noise is still there and then decreases as I slow back down.
This is really puzzling me as it does not sound like a wheel bearing or anything to do with the engine due to the inconsistency with revs and gears, but actually like air rushing into the car, but it makes this noise whether the ac is on or off.
I have checked all windows and sills around them, but it sounds like its coming from the engine bay, or behind the dash.
Then I start to think am I going mad and is it just road noise lol (which its not), does anyone else have this similar sound, or had it and fixed it?
Hope ive explained that well enough.
Any thoughts much appreciated.