Dodge Caravan Knock Sensor Replace/Remove

Sporadically Idling Very Rough Have Changed Coil Pack, Plugs, Plug Wires, O2 Sensors Both Of Them, Knock Sensor, Air Flow Sensor, Pvc Valve...

I Purchased This Vehicle Two Months Ago. The Engine Has Been Making The Marble Knock Sound When Warmed Up At Idle. Engine Sounds Fine When...