I went back and listened to original video.
It also sounds like the purge valve.
Some purge valves make a ticking sound on the 3.6s.
My 13 does it.
My 23 does it.
The 23 had a tech bulletin, about the ticking sound traveling along and sound being amplified. And could be heard in the cabin...
There was a 'fix'.
Eventhough my 23 was brand new...and i could have had it done for free, i just ordered the parts and installed them myself.
Cheaper and done right the 1st time vs taking it in, dropping off, getting ride home etc.
Ive pondered doing this to my 13.
But my wife literally said,what ticking?
After 12 yrs of driving it.....
I hear it.... she doesnt.
2nd gen owners may hear a fast ticking,clicking, or rattle like noise inside the vehicle. Usually at a stop or slow speeds. It may sound like its coming from the dash area. Sometimes it happens sometimes not. This is caused by the purge valve. Pressure pulsations are amplified as they travel...
www.traverseforum.com