A/C blows warm air above 45mph - Page 2 - JeepForum.com
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post #16 of 21 Old 07-27-2011, 06:59 PM
YJ_TJ_JK
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2001 TJ Wrangler 
 
Join Date: Jul 2011
Location: Langhorne
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yep, thinking of my YJ. Vac hoses drive me crazy thinking about them.

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post #17 of 21 Old 07-27-2011, 09:53 PM Thread Starter
05WK98TJ
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1998 TJ Wrangler 
 
Join Date: Apr 2010
Location: Clarkston
Posts: 219
I think for the compressor I will find one in a junkyard for 30 bucks instead of replacing the clutch and or bearing. To change the compressor out I obviously have to disconnect the pressure lines but first how do I drain the system?
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post #18 of 21 Old 07-30-2011, 10:17 PM Thread Starter
05WK98TJ
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1998 TJ Wrangler 
 
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ok found some new things today. No junkyards have compressors around me so I havent gotten one yet. But I hooked a bottle of freon with the psi gauge on it to see the low side pressure and it is around 80 psi which is not good. Also the bearing in the compressor is shot, the pulley was wobbling back and forth 1/2 an inch. And the air coming out isnt cold and smells HORRIBLE. So far im thinking to replace compressor, and check the orifice tube for blockage(If someone could tell me where that is it would be great)
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post #19 of 21 Old 08-01-2011, 02:04 PM Thread Starter
05WK98TJ
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1998 TJ Wrangler 
 
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I'm changing the compressor, drier and orifice tube later today. Before charging the system I have a vacuum and gauges to get the moisture out. Before I do this should I flush/clean the evaporator or condenser?
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post #20 of 21 Old 08-13-2011, 10:54 PM
ryanj52
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1977 CJ7 
 
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Location: louisiana
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Any Luck

Any luck changing out the parts? Did it solve your problem? I have a 97 TJ and I am having the same problem. I have a slow leak, that I keep filling, but when I get over 45 mph no more cold air, it keeps blowing out the vents just hot.
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post #21 of 21 Old 09-07-2011, 09:26 PM Thread Starter
05WK98TJ
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1998 TJ Wrangler 
 
Join Date: Apr 2010
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Yes after the compressor, accumulator and liquid line were replaced the issue was solved. I have driven around 1k miles since and no leaks AC blows cold. I also used a $12 AC vacuum from harbor freight prior to refilling with r-134a
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a/c , highway speeds , warm

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