My air shocks dont work on sil 2000

By not moving I assume you mean lifting and leveling? The good part is all the mechanisms required to make the pump run are working. The part you are having problems with is containing the air.

There should be a Master "dump" valve to allow the air to escape. Sometimes these solenoids freeze. There are also solenoids for each end or wheel to level the car. You have, of course air lines and suspension bags.

If any of these leak, the compressor can not keep up and will run continuously. You have several options. Depends on whether you can fix it yourself. Using a water spray bottle with soapy water, you can wet each air line and suspension bag while the compressor runs. The soapy water will bubble at the leak.

Or you can have a special scanner plugged into the diagnostic port for the suspension. It can "read" the sensors and indicate what is wrong.
Not all places have this type of machine. The Dealer, any GM brand Dealer, can attach this equipment and evaluate the system.

Some repair shops, body shops, may have bought these special scanners. You would have to call around to avoid going to a Dealer.

Since the system is leaking, you will not have to deal with all the pressure that operates these systems. But they can be dangerous and they do support the weight of the car possibly sliding off jacks if the system drops.

I hope my solution is helpful. You may find the parts aftermarket.