Whistling noise that will be sounding "Huuuuuuu"

moving noises are dangerous to find.
get help , real hands on help, an ASE mech, is such good help.

seen one do that, one was a funky license plate holder bad.
cracked plastic POS.

Sounds like a vac leak, could be the power brake booster or a hose.

a whistling noise will be a vacuum leak from some point. The Escapes are known for having vacuum issues in the rear of the engine due heat caused from the motor. The lines dry and crack out.

usually a whistling sound is from a vacuum leak

buy a noise suppressor, you can get it at any audio store

Remove the vacuum connection to the EGR valve and plug it with a golf tee or similar. If it stops whistling, remove the EGR valve and inspect for wear or seal damage (replace if bad). If you still have noise, suspect a leaking exhaust manifold gasket. Hope this helps!

humming or whistling noise..if it is a humming ..try this...going average speed turn your wheels side to side if the humming goes away and comes back then it is a wheel bearing

Are the windows up tight and sealed?

try sticking your hand out the window while driving and cover up the seem on the side mirrors. ususally those make loud whislte noises

Possible air bypass valve noise.