Just bought a 2000 tj wrangler sport, a/c wont hold a charge. Leaked out over night. Any ideas on typical problem areas would be appreciated! Dont want to be taken to the cleaners.  

Take it to an A/C shop. They have a meter that sniffs to determine where the leaks are. It's impossible to fix without the sniffer.  

Are we talking about Dye?  

No. It is a meter that can detect refrigerant in the air. It's pretty cool. Just wave it by each fitting and around the compressor.  

Thanks, Tenn. is heating up!