engine noise

[rudy herrera]

today when i was driving i was hearing a loud hissing noice kind of the one like you get with a **** fan clutch and as soon ass i pulled into the drive way it started nocking its not the fan hitting anywere and its not the motor its coming from the alternater area wat can it be can i drive it like this could it be a pulley or some thing and if it is how would i know which one
or wat else could it be

 

[Kdubslugga]

I guess the first step is to take the serp belt off and start it up see if the noise goes away!