Just bought car and air wasn't working. So refrigeration guy at work looked at it, put some nitrogen in to pressure test, it held, so he charged it up. It worked nice for a couple of weeks but it just stopped working, not blowing a hint of cold at all.

He's on vacation so will be awhile till hes back. There is pressure but I dont have a gauge to check the number.

Looked at compressor and it goes to engage clutch for a second but wont hold, it disengages, then goes to engage 30 secs to a min later, but only holds for that 1/2 sec then disengages.

The belt looks tight and does not look oily so I dont think its slipping.

Any thoughts guys?

Thanks, Jeff