Camaro A/C Problems

I have a 98 Chevy Camaro V6 and am having issues with the A/C. Whenever I first start it up, the A/C works fine on all speeds, etc. Then after I drive it for 20-30 minutes, the fan blower motor continues to run, but there is no air blowing from the vents at any speeds. However, if I turn the A/C switch off for 10-15 minutes and then turn it back on, the A/C works fine again for another 20-30 minutes before it stops blowing air again.

Does anyone have any idea to what might be causing this and what I can do to fix this issue? Any help would be greatly appreciated. Thanks in advance!

Sounds like the blower motor might be on it's way out and overheating.

Thanks for the response! That's what we were thinking too...we wanted to get a second opinion before we started workin' on it. I guess it's time to get to work! Thanks again!

The fan blower motor works great but now I have another problem. Air is blowing semi-cool but not nearly as cool as it should. The A/C compressor stays on all the time but the low pressure side reads approximately 80-90 and the longer it runs the higher it gets. I took it to a mechanic and he said the orfice may be plugged or the compressor may be going out. However, I was thinking maybe this is a sensor problem. The system is full of freon but there is still no cold air blowing. What do you think?

They could be right with a plugged oriface tube, very possible, but hard to say. To be sure, I'd have a couple of other places look at it then.