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People think changing the fittings is all you need to do. In my research the system needs to have the compressor flushed and refilled with oil compatible with 134 and the air dryer may be changed out as a precaution. The refridgerant is not compatible with the oil in the old r12 system and will cause the compressor to fail . I have seen a lot of this on the web and believe this to be a true answer.......You can easily get r12 on e-bay and it is a lot cheaper than a refit.............Most auto parts houses stock it for 35 bucks a can and the service tech can mark it up to 50-70 dollars. Trick is a license is needed to handle it but usually, on the web, an agreement to provide it to a licensed tech will satisfy seller.

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14y ago
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Q: What does it take to convert to r134a on a Fiero?
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