The A/C on my 92 doesn't work. The light comes on and you can hear the extra rattle from the clutch engaging on the compressor pulley (bad SAD bushings that will be replaced soon).

But it blows warm, and after a little bit the light on the A/C goes out on its own (button still depressed, fan still on).

I do need to check the air coming out of the unit for the rear, but I can't imagine it's any different.

Does se this sound like a low charge of freon? I'd probably go with a RedTek refill kit if so. Or is it likely something else? I tried searching but didn't find anything.