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Official Chassis Saver Rust Preventive Truck & Auto UnRough Country Lift Kits and Parts!1999-2004 Jeep Grand Cherokee Limited Headlight Pair

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Unread 08-22-2013, 02:54 PM   #1
rfritz7
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2004 WJ 
 
Join Date: Sep 2011
Location: York, PA
Posts: 188
Ac not working

My ac only blows cold on the highway. I just got it charged about 2 weeks ago.

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Unread 08-22-2013, 03:08 PM   #2
jclaudii
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1999 WJ 
 
Join Date: Oct 2004
Location: Russellville, ar
Posts: 1,200
Does it need charged again? How about cooling fan?
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Unread 08-22-2013, 07:29 PM   #3
rfritz7
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2004 WJ 
 
Join Date: Sep 2011
Location: York, PA
Posts: 188
I don't think it needs charged again it just was. And Cooling fan is running strong
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Unread 08-22-2013, 09:33 PM   #4
jclaudii
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1999 WJ 
 
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Location: Russellville, ar
Posts: 1,200
We need more info. Do you have access to any gages?
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Unread 08-22-2013, 09:47 PM   #5
Sandhara
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1999 TJ Wrangler 
 
Join Date: Aug 2005
Location: Grand Rapids, Michigan
Posts: 192
Is your condenser all plugged up with crap restricting too much air flow at low speeds? That's my best guess with this little info. Did you have a shop charge it or did you do it from one of those recharge cans?
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Unread 08-22-2013, 11:35 PM   #6
rdkendrick
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2003 WJ 
 
Join Date: Jan 2013
Location: Cincinnati, Ohio
Posts: 2,476
Sounds like the evaporator is freezing up.

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Unread 08-23-2013, 06:33 AM   #7
rfritz7
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2004 WJ 
 
Join Date: Sep 2011
Location: York, PA
Posts: 188
The gauges all reading a little high with the charge they put in. It might be freezing up like you said
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Unread 08-23-2013, 11:01 AM   #8
1hotrod
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2004 WJ 
 
Join Date: Apr 2013
Location: brigantine, NJ
Posts: 34
It shouldn't freeze up from an overcharged system, this usually happens on an undercharge. How much over are the pressures? Your compressor is most likely weak, especially if the low side is high at idle, say 50psi or more. Look at the low side line it should be sweating, if not your overcharged or your compressor is shot.
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