[DeTomaso] A/C Help...

[Trip Owen]

Just tried to charge stock A/C (R12) - on my 88 GT5S - I know nuthin about A/C systems.  The guy
said - its not holding the charge, and suggests trying a new expansion valve first.  It has a new
dryer - but the rest of the system is original, and car was stored 10 years, and rarely driven.  If
you think this is agood place to start where do I get one, is this some generic part I can get from
NAPA, or Panera specific?