Here are some other possible causes of hot air coming out of one side of the AC vents in a 1992 Buick Park Avenue:
* A refrigerant leak
* A faulty compressor
* A clogged expansion valve
* A bad blend door actuator
If you are experiencing hot air coming out of one side of the AC vents in your 1992 Buick Park Avenue, it is important to have the vehicle inspected by a qualified technician to diagnose the problem and make the necessary repairs.