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2026. 6. 30. 작업

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What problems can come from AC not running for years?

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If it was never converted to use R134a instead of R12, you're not just going to be able to charge it up yourself, since something that old probably came from the factory with R12 refrigerant. You need a license to buy R12 in the United States, and it's not cheap. Since your system is compromised and needs attention anyway, you might as well do the R134a conversion if it hasn't already been done. Here is a thread from a C10 forum. Bare minimum for the conversion would be new service ports. At the top end, a new accumulator (receiver/drier), orifice tube, o-rings, compressor and pressure cutoff switch. There is probably a happy medium somewhere in the middle. It's standard procedure to evacuate the system before charging. You probably don't have much to recover, but sucking the system down to a vacuum can tell you how bad your leak is (by how long the system remains holds the vacuum). Since your system has been open for so long, adding some oil when charging is probably a good idea. Espe