So the past couple days i started my car and every once in awhile I'm gettin this really loud sound coming from the belt. Almost like a supercharger sound it gets more quiet when i let off the gas, but it's just really anoying, any idea what could be causing it? I'm really tryin not to throw down alota cash on a big fix so if I can get this taken care of cheaply that'd help

 

have you checked to see if the belt is excessivly worn? a pully would cause it so check to see where it is coming from

 

+1 and if it's not worn most likely it's your Idler pulley dont worry it wont even cost that much if thats the case under $10 do it yourself fix.

 

my car was doing the same thing...ended up being that the bearing in the idler pulley went bad..realll ez fix