Heat!!!!!

Hey on my 93 Gramd am ... when my heat is on its warm not hot...but the weird thing is the heat ducts on the driverside are hot but the ducts on the passenger side blow cold.....it doesnt matter what setting i have it on defrost or on the floor doesnt matter ....anyone have any ideas.

Try checking your antifreeze level, and if your radiator needs flushed. If not, check your thermostat, and heater core. Definately not getting the circulation you need somewhere.