ticking noise

Today i shut off my car but left the key so the radio was on and i opend the hood and heard a ticking noise and it looked like it was comming from here

http://home.si.rr.com/zadam123/part.jpg

anyone know what this is?
It also felt like it was vibrating.

thanks
adam

you've had that too, huh? same thing here...sounded and felt like a bee was in there buzzing around......not sure where...not sure why...but it happned after I adjusted my Interceptor Transmission line pressure...adjusted it down again and the noise and vibration stopped.

I dont have the intersepter, Id say the noise is comming from that piece, Nobody knows what that piece is?

adam

Vacuum valve- will make noise. See hood diagram of hoses.

Damn, I coulda sworn that was either the VehiVIBRATOR or the Knutson valve.;)