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To replace the expansion valve on a 2002 Buick Rendezvous, first, ensure the AC system is fully discharged to prevent refrigerant exposure. Locate the expansion valve, typically found near the evaporator, and disconnect the refrigerant lines and electrical connectors. Remove the mounting screws to take out the old valve, then install the new valve, reattach the lines, and recharge the AC system with refrigerant. Make sure to check for leaks after the installation.

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3mo ago

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