3.8L runs rough/hesitates acceleration when cold

It's possible that there's a malfunction in the idle air control (IAC) system, or it and the throttle body are fouled with carbon. You may be able to clean the IAC and the throttle body if you have the skills and inclination. Otherwise, find a Dodge specialist, if I'm right it's not too expensive a repair. If it's something else, the Dodge guy should be able to diagnose it. If you want to find a specialist, here's our directory link for you: https://repairpal.com/dodge-repair-in-lincoln-california