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Joe,
What's wrong with getting a pressure gauge and checking the pressure level yourself? If you want a quick & cheap pressure check, you could buy a cheesy R-134 (compatible) A/C pressure gauge at Discount Auto Parts for about $4.95. This will, at least, tell you the pressure level. On the other hand, you might want to purchase a nicer Pressure guage/system, complete with R-134 installation kit, with solid large pressure valves, "steam" gauges, plenty of hose length, all the necessary high and low pressure quick-disconnect fittings, and so forth, at K-Mart, for $39.95. No, I don't hold K-Mart stock. But this way, you can more accurately check your R-134 pressure level, and you would also be prepared to recharge the system - yourself, after you locate & stop the leak. There are ways of locating & stopping leaks in R-134 systems, and I'm sure it's not that difficult to do, but get someone else's expertise on that. Me...I used a can of R-134/sealant along with the regular R-134 & R-134 oil that came with my kit, and there were no leaks after the can of "fix". I spent under $50, and I have a system to test pressure levels and recharge in the future. Also, the process of charging is not that hard to do, particularily with the new R-134 low pressure (small fitting) and high pressure (larger fitting) quick disconnects - that make it impossible to connect to the wrong pressure side (i.e., high side). If you do the recharge yourself, just be careful, keep your hands (and hair) away from all moving engine parts, wear protective eyewear, and read the instructions. It's a good experiece actually. Good luck.
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