You need to find a thread which gives the basic information with regards to tests on your AC system so people on the forum can be of help. Run the tests and report the results.
This means basic things like whether your compressor will turn on, whether it will turn on if you connect across the safety pressure cutoff on the dryer, and then what the pressures are in the system. If the refrigerant has leaked out and it will not turn on due to that condition you will want to limit your running of the compressor to the very shortest amount of time you can since all the lubrication is provided by the fact that the oil is mixed in the refrigerant... and if you have a Delco compressor you have no oil sump... there are huge numbers of threads on AC stuff...
And you need to tell us what you mean when you say you 'have no ac but it works'...
to us that makes no sense.
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