The AC / Heater unit has doors that open and close inside the dashboard. One of the doors is stuck open or closed. Some cars this is done with cables when you pull the lever from hot to cold and others with vacuum lines when you push the buttons and have no lever to pull. Check a pull cables and vacuum lines. May have to take apart dash broad and see the door stuck open or closed. Then why does it not close could be a simple vacuum line to a broken door or plastic part.
Answering "Why would the AC blow cold air on the drivers side while hot air blows on the passengers side even when all controls are set on cold 1997 Oldsmobile Aurora ?
Temp blend door actuator malfunction.
because someone was fiddling with the passenger climate control and now that baffle has stuck in the cold position . I had a 1997 buick lesabre which had the climate control functioning until a friend started adjusting it a few times then it became stuck in the cold position but only for the passenger side It is likely a mechanical bind in the baffle .
i just got i back from getting a wiper switch installed and this started happening the day i got it back. so could they have messed with something or what help please cheese problem go to a macanic it well help alot
Has a bad blend doot actuator. It is under the dash near the ducts, and it looks very hard to change.
heater control valve is bad on the drivers side.
Our car had this problem. Answer was a new A/C computer needed.
Dissconnect the battery for 1 hour and reconnect, should re-set the flaps!
Your need to add more r134a Freon. When the levels are not sufficient to cool both sides the car default sends all the cold air to the passenger side and not the driver's side.
Try completely disconnecting the battery for 1 hour then reconnect it. That should reset some door that controls the airflow. I just experienced hot air blowing on the pass side and cold air on the drivers side. I did the reset and now I have heat on both sides. Hope it works for you.
I had that problem too. when I checked my freon, it was low so I recharged it and was able to get cold air back on drivers side. then a month later, the seal went out on my AC compressor. So I would guess your freon is low and AC compressor is (or is about to) start leaking
I get hot air coming out of my air conditioner on the passenger side, while I get cold air coming out the drivers side. Can you tell me why and how do I find the schematic to fix it?