I think I may have found the problem. I can't figure out how to post a video to show you so I'll just say when engaged the clutch is wobbling bad. What do ya'll think?

I have a 02 Silverado and after about 10 minutes the clutch stops working. I've tried the jumper wire on the low pressure & high pressure and switch on the back of compressor along with new relays but clutch still don't come on. Also replaced orface tube. Any ideas?