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wheres the leak?

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Old Apr 3, 2010 | 04:18 PM
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wheres the leak?

my wifes 2003 expedition with rear a/c has lost its charge. im giong to recharge it to get her by but will want to find the leak. im sure it has some common places leaks occur, anyone know where they are?
 
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Old Apr 3, 2010 | 04:39 PM
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The leak can be anywhere, there is no common place. Look for signs of an oily residue or an accumulation of grime and that will most likely be your leak.
 
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Old Apr 3, 2010 | 04:45 PM
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i do comercial refrigeration work for a living so im not to worried about finding it. just thought id start here.
 
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Old Apr 3, 2010 | 05:12 PM
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I had a shaft seal leak on my 97, had 180Kmi on it at the time, some have had problems with the alum. lines that run to the rear A/C also.
 
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Old Apr 4, 2010 | 01:07 AM
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Originally Posted by worm5932
i do comercial refrigeration work for a living so im not to worried about finding it. just thought id start here.
Do a dye check on the system. There have been many problems with the o-rings at the connections. Some of the AC guys just put a little dino oil on them when replacing them and they will swell due to a chemical reaction.
 
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Old Apr 4, 2010 | 08:44 AM
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i checked the charge to see if it had anything left in it, about 50 psi static on a 55 degree day, and i did find dye on the caps. so when i get time to look it shouldnt be too bad.
 
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Old Apr 4, 2010 | 08:45 AM
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btw whats dino oil?
 
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Old Apr 4, 2010 | 09:25 AM
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Originally Posted by worm5932
btw whats dino oil?
Regular motor oil, not synthetic. Dino as in dinosaur.
 
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Old Apr 4, 2010 | 09:43 AM
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you should never do anything to possibly contaminate a refigerant system, that would fall into that category. the air works good in the deisel so she will have to drive it til i get it fixed.
 
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