My 1993 GMC Sonoma fun truck developed an A/C leak and lost its refrigerant. This truck sits for months at a time so I figured small leak no big deal and refilled it. Within a couple days it lost its refrigerant again.
I purchased this leak detector and found some small but several leaks at the Schrader valves and o-ring connections.
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I purchased a Schrader valve and o-ring seal kit and replaced everything I could easily reach.
I also purchased this a/c leak sealer that is supposed to be some sort of miracle fix. I got this for all the o-rings I am not replacing.
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I put the system under vacuum and to my surprise it is holding at -29 on the dial and has been for a few hours after turning the pump off.
So my question is should I go ahead and ad the leak sealer or since it appears I have fixed the leaks just recharge it and see what happens?