Well I was wondering if anyone has any quick tips for finding what part of the A/C line that I may have blown open.

I was looking at cars on a lot and my car was sitting, it was hot outside and I saw an explosion come from under the car on the driverside. I knew right away it was the A/C because it was a like a steam and I had the A/C running on High. (yes, the car was running, I mean Heatsoaking)
So before I start stressing out about where the leak happened, does anyone have any suggestions on what to check first. Common sense tells me to start from the driverside of course. Anyone else had this same thing happen? If so, what did you have to change? I plan on recharging the R134 after I change the faulty part.
thanks.

 

ttt