Should the compressor be doing this? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Cherokee & Comanche Forums > XJ Cherokee Technical Forum > Should the compressor be doing this?

Brand New! Quadratec LED Headlights!FS: Wrangler RGB Multicolor Fog Light LEDs: Awesome EffectFS: 2007-2013 Jeep Wrangler "HALO" Angel Eye Kit

Reply
Unread 07-25-2013, 08:07 PM   #1
sting7785
Registered User
1998 XJ Cherokee 
 
Join Date: Feb 2012
Location: Irmo, SC
Posts: 22
Should the compressor be doing this?

I have a 1998 XJ 4.0L Cherokee and I was changing the serpentine belt when I noticed something. I'm not sure if it's supposed to be this way or not. On the AC compressor, the part that the belt is touching (pink arrow) spins constantly as the belt moves. The part in the middle of that (blue arrow) spins for about 3-4 seconds, then stops for 3-4 seconds, and repeats this process. There's a click sound every time it starts to spin. The AC on this Jeep blows, but it's not cold air at all. I'm not sure if this is something that should be normal behavior for the particular part, or if that's an issue. Any input is greatly appreciated. Thank you.

Edit: I apologize for the small image. The site kept making me decrease the size for the upload. ><

photo.png

sting7785 is offline   Reply With Quote
Unread 07-25-2013, 08:12 PM   #2
B52dude
Registered User
1999 TJ Wrangler 
 
Join Date: Oct 2010
Posts: 343
Yes, that is normal. The compressor is just cycling on and off. The blue arrow is an electronic clutch. My 99 TJ does the same thing. But it has icy air.

Edit: To answer the second part of the question, you probably have a leak in the system and have lost pressure, thus no cold air.
__________________
[QUOTE=Ripper3494;10936705]i think we should chase him around with yjs, its like being chased by zombies, slow, crippled but for some reason still scary as heck lol[/QUOTE]

Red Jeep Club #614
B52dude is offline   Reply With Quote
Unread 07-25-2013, 08:22 PM   #3
79chiefs
Registered User
1988 XJ Cherokee 
 
Join Date: Dec 2012
Location: Lillington, NC
Posts: 956
It means your r134 level is low. If it does cycle the clutch it means you have some 134 in it, just get a can and add some. You can get a charge kit most anywhere.
__________________
99WJ Laredo I6-A 2wd
88XJ-Building on a budget.
95 E34 540i-DD
Had/have 6Jeeps/5Cherokees/4XJ's
79chiefs is offline   Reply With Quote
Unread 07-25-2013, 08:46 PM   #4
djb383
Registered User
1998 XJ Cherokee 
 
Join Date: Jan 2010
Location: The Republic of TEXAS
Posts: 2,203
Hummm, after our a/c overhaul, the compressor seldom cycles off......and it's cold.
__________________
Man Law - hoods should be raised at least once a week.....have a look see.
djb383 is offline   Reply With Quote
Unread 07-25-2013, 08:49 PM   #5
Holder350
Web Wheeler
 
Holder350's Avatar
1995 XJ Cherokee 
 
Join Date: Oct 2007
Location: Whitesburg, Tennessee
Posts: 5,260
Probably low on charge. I would take it to someone with a set of gauges to check actual pressures on the system.

Cycling the clutch like that is hard on it and the compressor. I would try to get it looked at soon.

Sent from my phone
__________________
95' XJ Country - Stock Skids - D30/D35 Limited Slip - 3" Lift - 31x10.50R15 - 4.0 HO - AX15 - NP231

98' XJ Classic - D30/C8.25 - 4.5" RC Lift - 33x12.50R15 - 4.0 HO - AW4 - NP231
Quote:
Originally Posted by Azzy View Post
You can tell the character of a person in how they treat someone who can do nothing for them.
Holder350 is offline   Reply With Quote
Unread 07-26-2013, 06:50 AM   #6
79chiefs
Registered User
1988 XJ Cherokee 
 
Join Date: Dec 2012
Location: Lillington, NC
Posts: 956
Quote:
Originally Posted by djb383 View Post
Hummm, after our a/c overhaul, the compressor seldom cycles off......and it's cold.
The compressor should cycle on and off. It is normal, but not every few seconds. If it does not cycle, or cycles every few seconds it means it is low on charge.
__________________
99WJ Laredo I6-A 2wd
88XJ-Building on a budget.
95 E34 540i-DD
Had/have 6Jeeps/5Cherokees/4XJ's
79chiefs is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.