Clunking sound from the front of car at idle

[trong74]

Today, I noticed a clunking sound, which seems to be coming from the front of the car while at a stop light. Has anyone else encountered this before?
If so, what's causing this sound and is it an easy fix?

 

[Nick Sticks]

Does it change if you turn the steering wheel, i.e. is it power steering related?
After that I would lift the front cover and see if the radiator fan is the source of the sound.

 

[Kimmax]

also try turning off the AC to get that option out of the window

 

[geoffbland]

Today, I noticed a clunking sound, which seems to be coming from the front of the car while at a stop light. Has anyone else encountered this before?
If so, what's causing this sound and is it an easy fix?

Steering? I4 or V6?