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Unread 06-07-2012, 05:53 PM   #1
jkrehberg
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1999 WJ 
 
Join Date: Jun 2012
Location: neenah, Wisconsin
Posts: 3
A/C recharge

I recently went to recharge my 99 Grand Cherokee.
What the recharge kits DON'T tell you, is that the pressure gauge on the can will NOT be accurate until the compressor is running. You need to continue filling regardless of what the gauge reads, until the compressor is running constantly. Once the compressor is running, the gauge will become accurate, and you can fill to the specified pressure. My jeep took 2 12oz cans to recharge.

I just noticed that this very helpful piece of information wasn't floating around on any forums I could find, so I decided to put it out there.
Let me know if you've got any questions.

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Unread 06-07-2012, 06:19 PM   #2
tjkj2002
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2002 KJ Liberty 
 
Join Date: Dec 2009
Location: Colorado
Posts: 8,074
Well since your system only hold about 24oz total you have a big leak and the AC will not work for long.Adding that stop leak is a sure fire way to kill the compressor also.Just having one gauge tells you nothing,you need both the high side and low side along ambient temp/humidity chart for your vehicle.The pressures can vary from vehicle to vehicle.
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Unread 06-07-2012, 09:12 PM   #3
jkrehberg
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Location: neenah, Wisconsin
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Can you help me understand how I have a leak in my 24oz system if it took 2 12oz cans?
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Unread 06-07-2012, 09:37 PM   #4
tjkj2002
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Quote:
Originally Posted by jkrehberg View Post
Can you help me understand how I have a leak in my 24oz system if it took 2 12oz cans?
If you need me to explain that one there is just no hope.
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Unread 06-07-2012, 09:50 PM   #5
jkrehberg
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Location: neenah, Wisconsin
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I'm sorry, but I just don't understand how 24 ounces does not equal 24 ounces.
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Unread 06-07-2012, 09:59 PM   #6
billzcat1
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2003 WJ 
 
Join Date: Oct 2008
Location: Redmond, WA
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All the DIY A/C recharge kits are a rip-off. What a great way to ruin your A/C system and then be out $600 to fix. I'd rather pay the $75 for a professional to recharge it and not screw it up.
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a/c , air conditioning , compressor , grand cherokee , recharge
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