You have to vaccum the system before you fill the freon in.

来源: JunkYarDDo 于 2013-03-04 07:20:41 [档案] [旧帖] [给我悄悄话] 阅读数 : (115 bytes)

回答: 我的难题是：汽车AC冷媒已漏光，compressor not running due to zero pressure, so 由 Gulang 于 2013-02-27 19:00:27

A vaccum pump is needed to do so.

Mix up air with Freon will greatly reduce your AC cooling abality.

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