air conditioning....yes or no?
If it's R12, it "should" still have the original flare service ports. If it's been converted, it "should" have the new style R-134 ports added "on top of" the original ports.
Are you sure it's leaked, or something else wrong? Scare up a set of gauges, and see if there's pressure in the system. Unfortunately, ambient saturated pressure/ temp for both refrigerants are so close, you probably cannot tell from that.
An example of R134 conversion fittings:
If it's R12, it "should" still have the original flare service ports. If it's been converted, it "should" have the new style R-134 ports added "on top of" the original ports.
Are you sure it's leaked, or something else wrong? Scare up a set of gauges, and see if there's pressure in the system. Unfortunately, ambient saturated pressure/ temp for both refrigerants are so close, you probably cannot tell from that.
An example of R134 conversion fittings:
