over heating sometimes

I think your coolant level is too low for the heater to work and it's overheating the engine. check the coolant in the radiator (when cold) and not just in the reservoir bottle. This could seriously damage the engine so get it checked ASAP by a Dodge specialist. If you want to find a specialist, here's our directory link for you: https://repairpal.com/dodge-repair-in-san-francisco-california