The easiest way to to pressure test with nitrogen, you will hear the leak. We use Nitrogen so no contaminents are introduced. You can use a sniffer but could get expensive trying to keep refilling with R134 and here in NY if you get caught releasing it in the air well out come the angle bracelets.. LOL
If you tested everything else .. do the dirty deed becuase Hawaii is HOT and I would not want to be in a pantera in that heat. Last year I went to Conn to the Concourse De Eligance and with no AC it was HOT in that car.
Ron
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