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DIY diagnosis for AC

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Old Jul 21, 2011 | 04:12 PM
  #1  
Bulletproofdirt242's Avatar
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From: Appleton, WI
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Default DIY diagnosis for AC

Couple weeks ago my AC crapped out n its hotter than hell in wisconsin. There a way to figure out why its not workin without havin to bring it to the shop?
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Old Jul 21, 2011 | 04:19 PM
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From: Oak Harbor, WA.
Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
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Have you looked the AC componants over?
Is anything leaking?
Does the compressor make funny noises?
Does the compressor turn on when the AC is switched on?
You may just need to get the refrigerant recharged.
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Old Jul 21, 2011 | 04:40 PM
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From: Appleton, WI
Year: 2001
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Compresser being the thing attached to the belt drive right? It turns on n off every 6 er so seconds
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Old Jul 21, 2011 | 05:11 PM
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From: Oak Harbor, WA.
Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
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Yes...lol...you are right about the AC compressor being the thing driven by the serpantine belt. I love it when people use the same technical terms I do. Switching on and off every few seconds is a good thing. it is working. it should do that when your AC or Defroster is on.

Okay, so does your AC just blow hot air when it is on?
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Old Jul 21, 2011 | 05:35 PM
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From: Appleton, WI
Year: 2001
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Lol ya i talk noob it saves me typing. It doesnt blow hot air just like regular temp air
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Old Jul 21, 2011 | 05:43 PM
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From: Appleton, WI
Year: 2001
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Not sure if theres a leak btw i havent given it a real good check.. Where would be common spots for leaks to happen?
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Old Jul 21, 2011 | 06:17 PM
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From: Calgary, Alberta
Year: 1996
Model: Cherokee (XJ)
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gaskets are leak issues, and hose/tube fittings. you would hear it and/or your system would be losing pressure. I had a slow leak in mine, all I had to do was put in a can of some sort of sealer **** and some more refrigerant.
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Old Jul 21, 2011 | 07:04 PM
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From: Appleton, WI
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Non of the AC components are makin any sort of an unusual noise
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Old Jul 21, 2011 | 07:44 PM
  #9  
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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Dude, take it to a shop and have it fixed right, you'll save money in the long run. You're not sure about where the compressor is and what it even looks like, take it to a shop.
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Old Jul 21, 2011 | 07:49 PM
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From: Appleton, WI
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I guess, just askin questions to see if theres a way to avoid that but i know its what ill more than likely have to do
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Old Jul 21, 2011 | 07:51 PM
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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how long you owned the xj and have you ever had it recharged
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Old Jul 21, 2011 | 11:07 PM
  #12  
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From: Oroville, CA
Year: 1995
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Engine: 4.0 with all of the noise and clatter
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A/C systems do not need regular recharges, if the system in low on charge it's because of a leak. How often do you recharge your refridgerator? Refridgerent does not wear out.
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Old Jul 21, 2011 | 11:18 PM
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From: Appleton, WI
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Ive owned it since feburary this year n no ive never had it recharged. Havent even used it my ac that much this summer only on some really scorchin hot days
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