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Old 06-25-2013, 08:17 PM   #1
RUBISEAN

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still cannot charge my ac

so here is what i have done so far, new compressor, pressure switch, system flush and conversion to 134a. i pull vacuum for 15 minutes and hold for another 15, then inject oil. after that i try to charge with 2lbs. and none will go into the system. i have tried to jump the compressor in an attempt to get it to accept the freon to no avail. the clutch does kick in and out when jumped. could a bad dryer or expansion valve be my problem? thanks in advance

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Old 06-25-2013, 09:13 PM   #2
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Did you take the valves out before you installed the adapters ?

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Old 06-25-2013, 09:14 PM   #3
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the shrader valves? yes i did
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Old 06-26-2013, 02:31 PM   #4
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Not trying to be a smart a$$, but you do have the jeep running and the a/c on when trying to charge? And you're charging on the suction line?
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Old 06-26-2013, 03:36 PM   #5
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You may have to bypass the low pressure switch to get the compressor turning.

Some great videos on YouTube for that.
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Old 06-26-2013, 05:21 PM   #6
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Quote:
Originally Posted by Redrider94 View Post
Not trying to be a smart a$$, but you do have the jeep running and the a/c on when trying to charge? And you're charging on the suction line?
i am a bodyman and do front end collision repair daily that require replacing the condensor, i am well versed at charging ac systems but this one has me stumped. and yes the i did try with the jeep running.
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Old 06-26-2013, 05:24 PM   #7
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Quote:
Originally Posted by jokerchief462 View Post
You may have to bypass the low pressure switch to get the compressor turning.

Some great videos on YouTube for that.
i have jumped the switch and also ran a jumper wire from the battery to the compressor.... it just wont accept any freon
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Old 06-26-2013, 05:26 PM   #8
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Are using regular gage set or on of those cheapie recharge hoses?
I have had some problems with those cheapies on certain systems, they will work on some but not others.
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Old 06-26-2013, 06:57 PM   #9
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Are using regular gage set or on of those cheapie recharge hoses?
I have had some problems with those cheapies on certain systems, they will work on some but not others.
i am using a Robinair recovery/ charge system
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Old 06-26-2013, 07:08 PM   #10
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If you have a way to measure the amount of freon you are installing you might pull a vacuum and charge it thru the high side port (engine not running) then after you install the recomended charge remove all gages and test the system. I had to do that with some oddball foriegn car when I had my A/C shop.

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