1. You will need to check the freon level in the system....
2. If the levels are correct then check the a/c pressure switches...
3. Check the wire harness on the a/c compressor clutch coil.
4. Its a lot easier to just scan the vehicles computer to pinpoint the problem...
An air conditioner blows out heat
You might need freon
Probably beneath the air conditioner, that's where it was on my 96
Portable air conditioner will not blow cold air. What to do?
you might need to refill the freeon
how do you charge the air conditioner on a 2000 neon
You probably have a jammed or otherwise defective vent door.
I had the same problem...until I had the coolant in the AC system recharged two years ago
It's out of freon or refrigerant.
about 5 minutes
diagram for 1999 chev subarban air conditioner
I attempted to refill the air-conditioning fluid and it had plenty of pressure... I'm not sure why the air won't get cold.