Idk makin some sound under the hood sounds like maybe the fan but i cant tell.....its not the exhaust but it sounds like exhaust almost...ne way just seeing if somebody might know what it is

 

I think I read it is a bad IAC

 

possibly im not sure ....i just replaced that six months ago though

 

do you a cold air intake of any kind?

Mine sounds like the EGR hiccups... but I'm not too worried...unless I need to be. :o

 

no just the gotts intake modd....this is like a clacking/gargling sound

 

https://www.f150online.com/forums/ex...ing-sound.html

 

While it's running , -or after you shut down? My EVR plays a tune after I shut the motor off lol. Sounds like a Kazoo or something?

 

while its running....its not the iac...i swapped that....i believe its my alternator actually....is it possible for it to be making this clacking sound??

 

If you suspect any of the pulleys, remove the belt and spin them by hand. Depends what you mean by clacking.. They have been known to make more than just a squeak. I had a tensioner that used to make a god awful noise, can't even describe it. Also had an alternator that sounded like a supercharger. Also check your AC pump clutch.