I have a wired howling sound form the motor i cant hear it out side only inside the car it happens 3000rpms and above.I dunno what it is but it sounds wired..
I cant really hear it when the hoods open... Its strang I'll lissen again tmw.. But i noticed this last weekend me and a buddy opened the hood i gave it a few revs couldnt hear it..B/W is it something to worry about?
if it's not the pullies check your iac valve. i have had a few of them cause howling sounds above idle and at high rpm's 99 percent of the time they howl it is at or near idle but i have seen a few cause the howling above 3000.