各位老大帮我分析一下AC问题:

开长途１小时后空调冷风很弱，温度下不来，风也没劲。短途正常。去年检查后加了伏里昂，但没开长途，今年开长途还是老毛病。
各位老大帮我分析一下是什么问题?

叩谢先！

所有跟帖： 

• 可以想到的可能 -soccer88- ♂ (64 bytes) () 07/24/2013 postreply 14:52:20

• I dont understand why no problem when drive -big-guy- ♂ (18 bytes) () 07/24/2013 postreply 14:58:22

• Cabin filter 太脏了。换过没有？ -事后诸葛- ♂ (52 bytes) () 07/24/2013 postreply 16:25:46

• changed 3 yrs ago. it works less than an hour. -big-guy- ♂ (0 bytes) () 07/24/2013 postreply 18:32:21

• 温度下不来和风没劲是不同的原因 -方宜- ♂ (424 bytes) () 07/24/2013 postreply 14:56:46

• "风没劲"是指开到最大挡风也不足，也不够凉， -big-guy- ♂ (97 bytes) () 07/24/2013 postreply 15:03:33

• 在开了高速1小时不凉的时候看AC radiator fan有没有转 -MoonRivertttt- ♂ (93 bytes) () 07/24/2013 postreply 18:02:14

• I checked last time on highway, both fans ran, -big-guy- ♂ (0 bytes) () 07/24/2013 postreply 18:30:36

• then check R134 pressure, both high and low side. -MoonRivertttt- ♂ (0 bytes) () 07/24/2013 postreply 18:40:01

• 车，年和迈？ AC自动控制恒温？ -老生长谈- ♂ (0 bytes) () 07/24/2013 postreply 15:10:23

• 2006 honda pilot ex -big-guy- ♂ (0 bytes) () 07/24/2013 postreply 15:20:10

• 嗯，听说Honda compressors很敏感，如果加R134多了会出问题 -soccer88- ♂ (0 bytes) () 07/24/2013 postreply 16:07:12

• Honda AC很怪，clutch总是on and off every few seconds 可能freon太高自我保护功能启 -老生长谈- ♂ (128 bytes) () 07/24/2013 postreply 16:13:01

• 原因很简单 -MoonRivertttt- ♂ (317 bytes) () 07/24/2013 postreply 18:18:42

• i cant hear the clutc on and off . -big-guy- ♂ (0 bytes) () 07/24/2013 postreply 18:34:16

• while engine is running and ac is on, look at the compressor clu -老生长谈- ♂ (0 bytes) () 07/24/2013 postreply 18:37:21

• 好像不是所有档都这样 -langxing- ♂ (52 bytes) () 07/24/2013 postreply 21:07:58

• 想想很有可能是AC evaporator 结冰了，所以风没有劲 -soccer88- ♂ (0 bytes) () 07/24/2013 postreply 15:10:46

• 查一查Ac evaporator Drain Tube 是不是堵住了 -soccer88- ♂ (0 bytes) () 07/24/2013 postreply 15:15:53

• if I open up Ac evaporator Drain tube, will it -big-guy- ♂ (11 bytes) () 07/24/2013 postreply 17:29:37

• the drain tube is for coolant radiator, AC radiator has no drain -MoonRivertttt- ♂ (247 bytes) () 07/24/2013 postreply 18:37:25

• 风机和AC是两个独立的系统 -MoonRivertttt- ♂ (47 bytes) () 07/24/2013 postreply 18:25:11

• 你需要检测才能分析 -满地找牙- ♂ (237 bytes) () 07/24/2013 postreply 17:06:29

• 还有一点 -满地找牙- ♂ (122 bytes) () 07/24/2013 postreply 17:09:14

• I dont have tools to check it. -big-guy- ♂ (0 bytes) () 07/24/2013 postreply 17:30:30

• check with Autozone or such if you can borrow one from them -MoonRivertttt- ♂ (42 bytes) () 07/24/2013 postreply 18:48:32

• Does your Pilot have an audio-HVAC display panel self-diagnosis -Gulang- ♂ (116 bytes) () 07/24/2013 postreply 19:56:28

• I don't know if it have an audio-HVAC display panel self-diagnos -big-guy- ♂ (36 bytes) () 07/24/2013 postreply 21:06:04

• 这时候把AC关上，风还是很小吗？ -Coorslight969- ♂ (0 bytes) () 07/24/2013 postreply 21:30:56

• 回复：这时候把AC关上，风还是很小吗？no, strong. -big-guy- ♂ (0 bytes) () 07/25/2013 postreply 07:03:39

• 你很熟悉空调每一个按钮的功能吗？有没有放在手动控制试一试？ -TBz- ♂ (0 bytes) () 07/24/2013 postreply 22:14:37

• I didnt push auto button. -big-guy- ♂ (54 bytes) () 07/25/2013 postreply 07:02:19