its annoying. Should I take it too ford. Cause its like. really freaken loud.

lol.. i have the same damn problem...

when its on the 1 setting its not bad, 2 gets worse, 3 and 4 its like an annoying humming whistling sound.. really an unexplainable sound..

my car does it every once and a while, and its been working fine for 2 years.. so i assume its all good

Mine does it all the time. Even on the 1 setting. So I think I may just drive to ford and tell em to listen and see if something sounds wrong.,

well, if they tell you something is wrong, let me know... my car is out of warranty, so they cant do anything anyways, but its good info to have

good luck with it!

Just be glad it's working.