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AC low side pressure over 100 psi and now condenser replacement assistance

Old May 13, 2010 | 07:41 PM
  #1  
jurgovan's Avatar
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From: pittsburgh, pa
Year: 1999
Model: Grand Cherokee
Engine: 4.7L
Default AC low side pressure over 100 psi and now condenser replacement assistance

I just replaced my evaporator and accumulator, got the AC evac and charged, had cooler (not cold) air for 2 days and now nothing. I put a gauge on the low side line and it shot up over 100 psi, without fully connecting the gauge. Also, there's now a small hole in the condenser slowly releasing pressure (small chunk of ice at location of hole and hissing).

Two questions, what failed component(s) could be causing the pressure to be so high in the system.

And, can someone send me instructions for replacing the condenser.

Some other info, I could hear the compressor engaging but it didn't sound good while doing so. Both lines to/from the evaporator were very hot to touch, as well.

edit: forgot to add car info - 99 grand cherokee limited with 4.7 engine

Thanks for the assistance.

tony

Last edited by jurgovan; May 13, 2010 at 08:10 PM. Reason: add car info
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Old May 13, 2010 | 07:48 PM
  #2  
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From: Tenn. and Mich.
Year: 2004
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Engine: 4.7L V8
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You posted this in the Grand Cherokee section, is yours a Grand? What year?
Dan

Edit: It would be helpful if you put the info in your "Details".

Last edited by ol"blue; May 13, 2010 at 07:53 PM.
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Old May 14, 2010 | 09:46 PM
  #3  
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Year: 1999
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Engine: 4.7L
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Could the orifice tube be blocked? I didn't replace this.
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Old Jul 11, 2011 | 01:15 PM
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Did you ever figure this out? Mine is reading ~135psig. In the past two years I have had both coils replaced and the compressor, now this. I don't have the noise in my compressor though. Any thoughts?
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Old Jul 11, 2011 | 06:23 PM
  #5  
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From: Elizabethtown, pa
Year: 1994
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Engine: 5.2
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Did u guys ever have it evacuated, put under vaccumme at a shop, after the repairs were done? Sounds like the system might be getting blocked with ice.
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Old Jul 20, 2011 | 09:01 PM
  #6  
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From: pittsburgh, pa
Year: 1999
Model: Grand Cherokee
Engine: 4.7L
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thread removed - new one started with better subject line.

Last edited by jurgovan; Jul 21, 2011 at 06:42 AM. Reason: edited to remove thread and start a new one.
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