It only does it some of the time it will start fineI put it in gear start going and it shuts down any ideas?
maybe the oxygen sensor?also is there 2 oxygen sensors in this model. like front and rear?

 

Could be yourPCM going out.

 

Pressure control module?

 

yank off your Throttle Body and IAC valve on the back of the TB and clean them both real good. this is a common problem with the magnum motors. the IAC gets gunked up and causes stalling issues.

 

The oxygen sensors can only be a possible cause IF the vehicle is up to operating temperature when the problem occurs, if the vehicle is still cold the problem is something else.

Take the durango to AutoZone or Advance Auto, they can hoo a scan tool up to it and tell you if there are any codes.