The most common thing is the heater / climate control valve located in the dash area for controlling the heat output. Should be able to tell if using the dual mode changes the heat output.
Isn't a heater supposed to blow warm air?
You need to replace the heater coil !
on your car it is a defalt mode for air to blow out defrost when there is no vacumn from the engine so you should look for a broken vacum line or see if it has come unplugged on the engine.
You may have a loose vacuum hose either under your dash, or in the engine compartment.
Bad "blend door" actuator or stuck blend door on the driver's side.
there is a blend door not operating properly the dash will have to be removed to repair most likely Read this article: http://www.imcool.com/articles/aircondition/fix_vacuum_line.htm I'm having the same problem. Jim
what color is the smoke. What does it smell like?
Lack of oil or water??
A fuse usually blows when there is a short. It's possible you have a short in the wiring someplace.
A short to ground causes all fuses to blow. If you have a trailer connecter then start there first.
Cant you need a amp or you will blow the battery
The most common cause would be low refrigerant.
Probably need to add antifreeze. Check the Radiator not the overflow tank. If you are low on antifreeze it will not circulate through the heater core.
Temp blend door actuator is bad on the passenger side assuming you want both sides to blow cold air.
I have a 02 buick rendezvous mine would blow a lil heat but never would get hot. We had it checked it was the thremostat, that is what was wrong with mine. They told me there is three things it could have been , it could be low on antifreeze , thremostat, or if you have to keep adding antifreeze often then it is your heater core.
flush the heater core in both directions with water
Try Blower Motor Resistor. It would on the Passenger side under the dash
To blow the nasty fumes up and away from passenger vehicles that may be near by.
sounds like the drain on your ac evaporator core is plugged up. A service station should be able to blow this out. I own a 97 Buick Skylark with this problem (saturated floors on passenger front and back) but the water does seem to accumulate more after during and after a rain.
yes depending if your going to keep the original trans in it you might blow out your transmition and replace the motor mounts
Why does my Lincoln LS V8 Blow cold air on one side and hot air on the other side
pluck ityespluck it
underneath the dashboard on the passenger side.
The throat muscle would be used to blow a saxophone.
There is more than the fuel pump on that circuit. Get a wiring diagram from MOTORLIT.COM and find out what all is on the circuit.