Thanks for the reply. If it was the refrigerant why would the passenger side be cold? They use the same a/c and heater element on both sides, the only difference between driver and passenger side is the hot/cold air ratio, right? At least that's how I understand it.
So, I think I am in this boat too somehow. I noticed that my driver's side was blowing warm air and the passenger's side was cold. Texas in summer means warm air is not tolerable. Mine's an '04 Limited so it has dual zone temp control. I checked the driver's side blend door servo and it...