Check the clutch and see if it needs replaced; more then likely the compressor came apart on the inside and you'll have to replace it, flush the lines, and replace the orfice.
The ac compressor is shot. Usually what your hearing is a bearing that is moving around.
You may need to replace the heater\ac control switch, it may be stuck in the off position which would prevent the blower and the ac compressor from turning on.
Most commonly would be lack of freon.
My first guess would be you are low on freon.
low freon, bad pressure switch, bad compressor clutch.
A bad fuse would not allow a/c clutch to pull in (turning on compressor) A bad fuse may cause blower fan not to work not allowing a/c to start
Most likely you have a damaged - locking a/c compressor internally.............
It would be bypassed by the mode door in the ducting under the dash. You may have have a problem with your mode door if your compressor is turning on when you select A/C. If the compressor clutch does not engage it is likely that there is an insufficient charge in the system, and you may have a leak.
I would like the answer to this question also. AnswerWhen you say "after turning off 1994...", I'm assuming you mean turning off the A/C. The clutch on the compressor might be stuck, or the relay that controls it may be sticking. Try pulling the fuse or unplugging the compressor connector and seeing what it does. If it still runs, you've got a bad clutch on the compressor. IF YOU PULL THE CONNECTOR AT THE COMPRESSOR, MAKE SURE THE ENGINE IS OFF BEFORE YOU DO. Don't blame me if you get hung up in the belt.
first find out if the engine is getting spark or fuel. if the engine is not turning over or absolutely nothing is happening, find out if the starter is receiving current.
Fuel pump could be possibly getting weak. Happened to my blazer.
check a/c compressor and belt.