heating problem 3.8 liter engine 85000 miles passenger side gets cold air all the time no matter what drivers side gets warm but not hot got car second hand but the car always had this problem it does have the dual heating and air the air works great if some one has a clue i would appreciate if some one could help me times r rough and i have little knowledge were to start but am not afraid to dig in thanks mike

Welcome to AF.

You should have the 3.1L V6 engine and not the 3.8. To start check your coolant level and the rating of the thermostat. Also, the heater core may be blocked or need a flush. Check the heater core inlet and outlet hoses at the firewall to see if they get hot to the touch after the engine reaches operating temperature.