Originally Posted by 
garrycol
				 
			Are you sure it is in the tailgate - I had a similar noise and couldn't find it, then then I noticed that it was not there when the rear seats were folded down - turned out to be the little seat rattling when upright.
You must have better dealers than most of us - I would never use them unless absolutely necessary - they certainly know less than they charge and their workmanship is not so good.  Repair by replacement with you footing the bill even when wrong is the norm - gone are the days of diagnosing issues.
Garry