I have the same problem on my 05 Durango, which was manufactured after the recall. I found the following comment in the Dodge Caliber forum:
"Do you drive in dirty dusty conditions like gravel roads? I drive on gravel roads alot and my Caliber SXT started doing the gas burp thing at about 40,000 miles. I blew air from my compressor through the Evap filter located by the gas tank behind the rear left wheel and all ok."
It seems like the vent gets plugged, and needs to be cleared out. I have to fix my air compressor to try this - has anyone else tried to clear out the EVAP vent?