It can be a number of things. First check the fuses then make sure the blower motor is operative. If all checks ok, take it to a garage.
Let's not assume an a/c problem if the air is not blowing. This is usually due to a burnt out blower motor resistor. The various speeds of the blower are controlled by this resistor pack. It is cheap to replace and is usually located behind the heater/AC controls on the dash. This pack can fail in different ways to where some blower speed positions work and others don't. If there is no air blowing at all I would check it. Just ask for a blower motor resistor at a local parts store. They fail enough that its a stock item.
An air conditioner blows out heat
You have a vacuum source at the intake manifold that is possibly disconnected.
no but it may depend on the conditioner
I have exactly the same problem on my 2000 Still looking for the answer
If system was opened to the atmosphere it will have to be evacuated prior to charging
My 2002 blows warm air when the rpm goes down significantly (when I don't clutch)
It's out of freon or refrigerant.
diagram for 1999 chev subarban air conditioner
Hmmm, because it should?
The system can be low on refrigerant
It depends when your washing your hair that you use conditioner but blow drying does not sorry.
The air of your Chevy trailblazer 2004 blow out of the front vents when the air conditioner is on because the air condition is faulty and it needs repair.
If it does blow just not cold air you should see if it needs to be recharged
you would need to add freon
Check freon level first
It is just a simple fan blowing over a coil.
gas leak or wrong wiring
Heatstrips could be on with ac
A bad alternator will cause a battery to go bad. It does not have an effect on the air conditioner.
sounds like your blower motor fan speed switch needs looked at
Coming out of the vents around 43 degrees
the function is to blow the hot air from outside to cool air in side
Yes, if the original problem was the blower motor.
Blow - 2002 was released on: UK: 2002 USA: October 2002 (Chicago International Film Festival) France: 10 October 2003 (Paris Cineffable Film Festival)