我的难题是：汽车AC冷媒已漏光，compressor not running due to zero pressure, so

How to add refrigerant without compressor running?

所有跟帖： 

• 拔下低压保护开关插头，用曲别针短路。 -追风大老虎- ♀ (0 bytes) () 02/27/2013 postreply 21:14:42

• 要换我的话不会这样干 -MoonRivertttt- ♂ (164 bytes) () 02/27/2013 postreply 21:28:50

• 油是不会挥发的，再加油就挤了冷媒的空间了。 -追风大老虎- ♀ (0 bytes) () 02/28/2013 postreply 04:01:07

• 这得看是怎么漏的 -MoonRivertttt- ♂ (45 bytes) () 02/28/2013 postreply 10:11:03

• 恩,我松冷媒接口的时候,泄露口周边是有很大一片油迹的. -SmallBlock- ♂ (0 bytes) () 02/28/2013 postreply 11:25:09

• 所以还是加点油保险 -MoonRivertttt- ♂ (0 bytes) () 02/28/2013 postreply 15:17:12

• add a can of compressor oil and some R134a, get it running then -MoonRivertttt- ♂ (218 bytes) () 02/27/2013 postreply 21:17:30

• 我上面的回帖有我用过的全套：抽空机，gauge set, connector ... 唯一 -x88- ♂ (517 bytes) () 02/28/2013 postreply 10:25:11

• 修车不忘环保,有大爱, 赞一个! -SmallBlock- ♂ (0 bytes) () 02/28/2013 postreply 11:28:30

• 呵呵，谢一个! -x88- ♂ (0 bytes) () 02/28/2013 postreply 18:12:09

• 最初加冷却液不能启动发动机，即使启动了，由于没有压力，压缩机的CLUTCH也不会ENGAGE。正确步骤大致 -x88- ♂ (1467 bytes) () 02/28/2013 postreply 19:47:57

• 感谢追风大老虎,MoonRiverttt, x88, SmallBlock, and soccer88, 分宝贵经验。 -Gulang- ♂ (2044 bytes) () 02/28/2013 postreply 20:21:56

• 回复：感谢追风大老虎,MoonRiverttt, x88, SmallBlock, and soccer88, 分宝贵经验。 -追风大老虎- ♀ (239 bytes) () 02/28/2013 postreply 21:42:58

• 谢追风大老虎, for the information。 -Gulang- ♂ (0 bytes) () 03/02/2013 postreply 10:28:47

• let me ask you this -MoonRivertttt- ♂ (385 bytes) () 02/28/2013 postreply 22:13:04

• True, the freon bottle only works when the AC pressure is still -x88- ♂ (409 bytes) () 03/01/2013 postreply 08:12:19

• I used an old simple gauge comes with the refrigerant can, conne -Gulang- ♂ (195 bytes) () 03/01/2013 postreply 17:51:29

• Don't use vacuum pump unless the AC has been fully discharged. -x88- ♂ (408 bytes) () 03/01/2013 postreply 07:48:50

• Thanks, x88, for the advice. -Gulang- ♂ (0 bytes) () 03/01/2013 postreply 17:54:05

• Gulang, 听你的描述，我觉得 -x88- ♂ (376 bytes) () 03/02/2013 postreply 12:09:55

• Great, x88, thanks for sharing the experience. One update ... -Gulang- ♂ (807 bytes) () 03/02/2013 postreply 20:16:18

• Definitely Vapor if by high pressure port. By low pressure port, -x88- ♂ (361 bytes) () 03/03/2013 postreply 07:06:37

• Thanks x88. -Gulang- ♂ (0 bytes) () 03/04/2013 postreply 18:47:10

• You have to vaccum the system before you fill the freon in. -JunkYarDDo- ♂ (115 bytes) () 03/04/2013 postreply 07:20:41

• Thank you, JunkYarDDo. Just got my MGS, will get a reading to se -Gulang- ♂ (270 bytes) () 03/04/2013 postreply 18:55:39