3.6 Pentastar oil pressure sender woes.....
Those oil filter housings/coolers have a lot of problems, my friend's wife has a 2011 Grand Caravan and we changed that this fall. You can complain all you want but that's an easy intake to pull and replace the gaskets. If that oil filter housing/cooler hasn't been replaced, its only a matter of time until it needs one.
In our case, the seals were bad on the bottom and it was seeping oil and coolant. The intake gaskets were also totally flat. This van had about 125k.