In that case it sounds like you have an internal door problem. There are rubber seals around the doors, either one has come partially off and is blocking the door from fully closing and letting hot air from the heater core around it or the door has cracked and is doing the same thing.
The charge is fine. There is no "cold to the passengers side" There is a single heater core and a single evaporator core. All of the temperature changes and modes are controlled by the door positions. In your case the blend door is not doing its job and you are getting no AC.
The only way to repair that is to remove the HVAC housing and open it up to verify/repair the unit. You might try using one of the USB style inspection cameras they sell online to look into the vents and see if you can watch the actual doors, you might see what is actually causing the problem that way.
Thursday, June 21st, 2018 AT 2:14 PM