I’ve been having an issue with my A/C for the past few summers now. When I’m driving down the road it works just fine. The issue is when I’m parked or idling for any amount of time at all…within 5-10 seconds it will start blowing hot and sounds like the compressor is kicking on and off constantly. Once I start moving again it’ll start cooling back down and working as it should. I had the refrigerant level checked last summer and the guy said it wasn’t very low but it did take a little. He said it could be an airflow issue and recommended I take a water hose and spray the radiator and A/C condenser to see if perhaps they were just too dirty. That hasn’t ever helped. One thing I’ve noticed for the past couple of years is when I initially turn the A/C on after starting her up the compressor make a loud clunk sound and then she starts working just fine…but if I let it just sit and idle for more than 15-20 seconds it starts blowing hot. Any thoughts or suggestions on what the issue may be? I've read that some guys are installing auxiliary electric fans to help with airflow.