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did you recover recharge system and still same ?
most the time you will need than proportion h valve replaced and ac compressor the variable valve on compressor can go bad and cause it also . h valve or proportion valve must inspected for clogged from failed ac dryer it will have lot small balls if is clean than replace compressor
expansion valve firewall yes most the time if is not clogged from failed dryer i would install new ac compressor that compressor is also variable compressor it has valves inside also
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