I know that this thread is old as hell, but my car does the same thing. What I noticed is that when the car comes to a stop or idles the A/C compressor stops and if you rev it up just a little the compressor kicks in again.
Anyone has this same problem? What is causing it? Idle sensor problem?

 

Check your freon sounds like your a bit low.

 

I have the same problem where the clutch will disengage on the compressor could my compressor be bad?

also my freon level is good

 

if your compressor is cutting off, either your freon is low (have it checked, you have no way of knowing without having it evacuated and weighed), or you have a pressure switch going bad.

 

I replaced the pressure switch and the system was refilled and its completely full now it will work for like 10 mins and then hot air for the rest of the time

 

I would have guessed pressure switch or freon level. Since you replaced those it could be a bad clutch, compressor or something with the electrical going to the pressure cycling switch.

 

in that case, y ou'll need to take it somewhere and have it diag'd. a/c is really hard to diag online without guages and visual inspection and test equipment.