When the a/c is on I get a freon discharge from the right side of engine comp. Now A/C blow cool air periodically.

 

what model? I can't say I have ever heard of this on a H2....

I would armchair quarterback assume that you have an issue over pressurizing the A/C system.... and it's venting for safety....

There are a couple things you can do.... take it to one of those $39 charge your system places and they will verify my thoughts....

or spend a lot at the dealership.... It's possible that one of your charge ports are loose... but I have never seen that in 20+ years of turn wrenches...