I have a 2002 S10, I’m the second owner. I checked with the previous owner ( the person I bought it from) to see if he has ever had any issues with the A/C. He said “Not at all.” I do know the truck was sitting very close to a year.
I’ve recharged the system and now it’s right at the red so far as r-134a gauge go. When I turn the A/C I can hear the A/C clutch kicking in and out like every 9 seconds. I’m reaching out to see if the CarTalk community can think of anything to check or try.
If the refrigerant level was low . . . and it sounds like it was, otherwise why would you need to recharge it . . . it’s probably because of a leak, not normal seepage
The most common leak is the ac compressor itself. It’s actually the case o-rings
You can suck in some ultraviolet dye through the low side while the engine is idling wit the ac compressor engaged
It takes some time for the dye to find its way out through the leaky components. Sometimes it takes months. I wouldn’t be surprised if you’ve literally got a green compressor a few weeks from now
I’m assuming that is part of some “kit” to add a small amount of ac, available at an auto parts store
I wouldn’t trust that very much
The best way to evaluate your problem is with a professional set of manifold gauges. Or better yet, pay somebody to do a proper recover, evacuate and recharge. And make sure he tells you how much he recovered
I’ll lay odds, you only have 1/2 charge, or less
If you go that route, make sure he adds ultraviolet dye, and make sure he puts the sticker on, indicating he added dye. It’ll make it easier for the next guy who’s looking for ac leaks
“I have a check engine light for evap high voltage”
That is related to your evaporative emissions system. It has nothing to do with your ac performance