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Unread 12-27-2012, 06:02 AM   #1
cactus_jack
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1998 XJ Cherokee 
 
Join Date: Jul 2009
Location: Morehead, Kentucky
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Cleaning A/C Clutch?

Not sure if you guys remember, but way back in the day I swamped my Jeep. Ever since then, my A/C compressor has had a constant whine. It only makes this whine when the clutch is disengaged. When I turn the A/C on, the clutch engages and doesn't make any noise.

After months of putting up with it, I'm sick of the noise. My XJ sounds like one of those old Dodge Caravans with the whiny PS pump. I can only assume one of two things:

1. Clutch plate is just dirty

2. Some sort of bearing is shot and is about to lock up

What do you guys think?

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Unread 12-27-2012, 01:35 PM   #2
AZ Jeff
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There is a bearing in the hub of the pulley. It only turns when the clutch is DISENGAGED. That sounds like your issue.

Pull the belt and spin the pulley by hand and listen for noise or roughness.
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1992 XJ -- stock (RIP)
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Unread 12-27-2012, 03:21 PM   #3
squirlgod
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you can take off the clutch plate and take a look. You'll need a special tool though that you can usually rent at an autoparts store. If the Bearing is shot, you got more luck with a new compressor I think...hard to find just the pully
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Unread 12-27-2012, 07:48 PM   #4
cactus_jack
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Figured it was the bearing but was hoping someone had a similar issue and had a quick fix. Lucky for me, I run a NAPA store so it wont hurt my wallet as bad, lol
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Unread 12-27-2012, 08:48 PM   #5
trunk3d
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Quote:
Originally Posted by cactus_jack
Figured it was the bearing but was hoping someone had a similar issue and had a quick fix. Lucky for me, I run a NAPA store so it wont hurt my wallet as bad, lol
Just walked back into the house from changing my compressor on a 2000 model.. Very easy to do; the most tedious procedure was the serpentine belt. :-)
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Unread 12-27-2012, 09:50 PM   #6
AZ Jeff
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Quote:
Originally Posted by cactus_jack View Post
Figured it was the bearing but was hoping someone had a similar issue and had a quick fix. Lucky for me, I run a NAPA store so it wont hurt my wallet as bad, lol
You can get just the bearing and install it in the pulley yourself. Here is a source:

AutoAirOnline.com. Phone is 1 800 726 2310
*
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1992 XJ -- stock (RIP)
2000 XJ -- lots of basic mods. Sold to fellow forum member. I miss it.
2014 JK -- the project is just starting!
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Unread 12-28-2012, 06:41 AM   #7
cactus_jack
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Quote:
Originally Posted by AZ Jeff View Post
You can get just the bearing and install it in the pulley yourself. Here is a source:

AutoAirOnline.com. Phone is 1 800 726 2310
*
I had thought about that. Thanks for doing the leg work for me! lol. Honestly, if they can give me a part number, I'll just cross it at work and get one there.
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Unread 12-28-2012, 01:22 PM   #8
Kalali
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2000 XJ Cherokee 
 
Join Date: Apr 2012
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Hmmm. I just posted a new thread about this before I saw this one. I see the clutch bearing for $33 which sounds real reasonable. Do I need a special tool to remove the pulley and install the new bearing? Please let me know how you make out doing your repair. I need to do the same exact job.
Thanks,
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