Hi guys, 2001 GT with 3.8, a/c quit last summer. Compressor wasn't engaging, so I added 2 cans of 134a around August and it blew cold for about 2 weeks and then quit again. Now the compressor won't kick on, so telling me that the refrigerant is leaking out and the low pressure switch is doing its job by keeping the compressor off. Also telling me that the leak can't be huge if it took 2 weeks for the pressure to drop low enough to kick out the low pressure switch, and that everything is the system is working as long as I can keep refrigerant in it.

Sooo...how do I start looking for the leak? Any known places where they "always" leak? I don't have that much experience with a/c repair so need some troubleshooting tips.