Another Newb Question!

Exhaust leak ?
I haven't seen anything posted yet that it couldn't be.
Define " clicking ".
Pretty tough to diagnose without more info.
It could easily be one problem creating another i.e. bad motor or trans mount causing something to shift and create this " clicking " you hear.

Well It is coming from under the hood. I have a feeling its just the fan. But when i am parked and idling i rev the engine seeing if anything happens and its perfectly fine. I really dont know what/where it could be. It really on happens when im in 1st sitting at a light or stop sigh and jump on it. Its more of a ping sound then a click.