Air conitioning not working making hissing sound (archive)

My air condtioning on my 87 325 was working fair. It would take a little while to get cold but it would work. I tried the air today and it didn't work at all and I'm hearing a air leaking sound from under the dash when I hit the air button. It's a faint sound and I'm not sure if it was always there or not.

The switch seems to be working because it still puts a slight drag on the engine when I turn it on. The only thing I did was change the radio. I thought maybe I could have knocked off a wire or somthing but I pulled the radio out and didn't see anything I could have knocked off.

Could it have just all of a sudden ran out of freon? Any ideas what it could be?

Follow Ups:

Re: Air conitioning (update) wjbell 09:21 7/15/2000 (0)
Re: Air conitioning not working making hissing sou Mr.318 06:44 7/15/2000 (0)
Re: Air conitioning Darin 17:31 7/14/2000 (1)
- Re: Air conitioning wjbell 17:43 7/14/2000 (0)
Re: Air conitioning not working making hissing sou andyman 17:12 7/14/2000 (1)
- Re: Hissing sound hint Tom Knowles 19:01 7/14/2000 (0)

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