Hi when I turn on my air on my 2000 Grand Cherokee Larado 4.0 L, there is a vibrating or buzzing sound, and then sounds like it is venting liquid, or steam, then there is a lot of smoke. It is coming from under the intake by the map throttle body. It looks lie some antifreeze id running down on the exhaust pipe at that time. The smoke smell like electrical burning. Please Help

 

took it in and had added too much Freon, evacuated and put in 2 pounds and that took care of it.