Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

DIY diagnosis for AC

Thread Tools
 
Search this Thread
 
Old 07-21-2011, 04:12 PM
  #1  
Junior Member
Thread Starter
 
Bulletproofdirt242's Avatar
 
Join Date: Mar 2011
Location: Appleton, WI
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
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?
Old 07-21-2011, 04:19 PM
  #2  
CF Veteran
 
BuckB91XJ's Avatar
 
Join Date: Nov 2008
Location: Oak Harbor, WA.
Posts: 6,989
Likes: 0
Received 4 Likes on 4 Posts
Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Default

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.
Old 07-21-2011, 04:40 PM
  #3  
Junior Member
Thread Starter
 
Bulletproofdirt242's Avatar
 
Join Date: Mar 2011
Location: Appleton, WI
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Default

Compresser being the thing attached to the belt drive right? It turns on n off every 6 er so seconds
Old 07-21-2011, 05:11 PM
  #4  
CF Veteran
 
BuckB91XJ's Avatar
 
Join Date: Nov 2008
Location: Oak Harbor, WA.
Posts: 6,989
Likes: 0
Received 4 Likes on 4 Posts
Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Default

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?
Old 07-21-2011, 05:35 PM
  #5  
Junior Member
Thread Starter
 
Bulletproofdirt242's Avatar
 
Join Date: Mar 2011
Location: Appleton, WI
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Default

Lol ya i talk noob it saves me typing. It doesnt blow hot air just like regular temp air
Old 07-21-2011, 05:43 PM
  #6  
Junior Member
Thread Starter
 
Bulletproofdirt242's Avatar
 
Join Date: Mar 2011
Location: Appleton, WI
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Default

Not sure if theres a leak btw i havent given it a real good check.. Where would be common spots for leaks to happen?
Old 07-21-2011, 06:17 PM
  #7  
Seasoned Member
 
dilljeepo's Avatar
 
Join Date: Aug 2010
Location: Calgary, Alberta
Posts: 320
Likes: 0
Received 1 Like on 1 Post
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0L
Default

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.
Old 07-21-2011, 07:04 PM
  #8  
Junior Member
Thread Starter
 
Bulletproofdirt242's Avatar
 
Join Date: Mar 2011
Location: Appleton, WI
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Default

Non of the AC components are makin any sort of an unusual noise
Old 07-21-2011, 07:44 PM
  #9  
CF Veteran
 
Bustedback's Avatar
 
Join Date: Feb 2010
Location: Oroville, CA
Posts: 12,367
Likes: 0
Received 19 Likes on 18 Posts
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Default

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.
Old 07-21-2011, 07:49 PM
  #10  
Junior Member
Thread Starter
 
Bulletproofdirt242's Avatar
 
Join Date: Mar 2011
Location: Appleton, WI
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Default

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
Old 07-21-2011, 07:51 PM
  #11  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

how long you owned the xj and have you ever had it recharged
Old 07-21-2011, 11:07 PM
  #12  
CF Veteran
 
Bustedback's Avatar
 
Join Date: Feb 2010
Location: Oroville, CA
Posts: 12,367
Likes: 0
Received 19 Likes on 18 Posts
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Default

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.
Old 07-21-2011, 11:18 PM
  #13  
Junior Member
Thread Starter
 
Bulletproofdirt242's Avatar
 
Join Date: Mar 2011
Location: Appleton, WI
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Default

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
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Joshuapn
Other Vehicles. Other Jeep models & cars and trucks of other makes
1
09-25-2015 08:16 PM
Rich164
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
09-08-2015 08:32 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: DIY diagnosis for AC



All times are GMT -5. The time now is 06:16 AM.