Hi Scotty, 

Just watched your video on this topic. I noticed that my throttle body makes clicking noise on idle and each time it clicks engine starts to stall and hesitate. RPM fluctuate but just a tiny bit not even noticable. 

Inside the cabin you can feel shaking and knocking vibrations. 

Told my friend to push and let go of the pedal and each time he pushes and releases pedal there is the clicking noise , very bad and unhealthy sound and when car goes back to idle speed it contiues to click ,shake and stutter , specially you can hear thumping noise in intake manifold.

My question is , should you ever hear a clicking noise like this inside electronic throttle body ?