ok on my 97 f150 right at the end of the air intake, where it connects to the throttle, to the right there is a little box with a 2 or 3 inch hose with a 45 degrees angle in it, that connects to the throttle. i was wondering what this hose was called.

 

Box = IAC muffler
Hose = IAC hose

 

IAC = idle air controller

just in case you didn't know

 

thanks guys