I took my 94 S10 P/U in to get the A/C recharged. It had a leak that would leak down in the course of a few days. I took it in to have all of the "o" rings replaced and have it evacuated and recharged and tested again for leaks. They found the schrader valves were leaking and replaced them and recharged again. Two days later the system was empty again. I took it back and the they replaced the shrader valves again. They showed me where the oil was on the protective caps so I agreed that it had to be leaking there. They recharged it and the next morning, No A/C again.
Here is my question, these guys appear to have a good machine for evacuating and recharging but I have never seen them use one of those electronic leak detectors to look for leaks. I am concerned that this is going to become a series of parts replacements till the leak goes away solutions. I don't want to waste a bunch of money on this car only to find out the compressor is leaking which is more that I want to put into this car right now.
Does anyone have any suggestions as to what I need to talk to thew service guy about when I bring it back in. Any thoughts or suggestions will be most appreciated.
Tim