weird noise when ac running?

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May 28, 2012 | 11:24 AM

#16

Cherokeekid4x4

CF Veteran

Joined: Feb 2012

Posts: 2,652

Likes: 2

From: Kansas

Year: 1994

Model: Cherokee

Engine: 190-hp, 4.0-liter I-6

Quote:

Originally Posted by Turbo X_J

If you notice with the engine running the compressor pulley is actually 2 parts. When the compressor is not engaged the center portion is stationary, when engaged "click" it rotates.

^ that makes more sense then what I said

May 28, 2012 | 11:27 AM

#17

Nperryman

CF Veteran

Joined: Dec 2010

Posts: 1,246

Likes: 1

From: Missouri

Year: 1998

Model: Cherokee

Engine: I6 4.0 L

Quote:

Originally Posted by Turbo X_J

If you notice with the engine running the compressor pulley is actually 2 parts. When the compressor is not engaged the center portion is stationary, when engaged "click" it rotates.

Yea I know that. I just wasn't sure if the belt had anything to do with the a/c or if the pulley was just attached to the compressor. So to deal with squealing like the o.p., how do you tighten the belt?

May 28, 2012 | 11:36 AM

#18

Turbo X_J

CF Veteran

Joined: Sep 2009

Posts: 8,567

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From: ☼ Blackhole Sun

Year: My Jeep is a GMC

Engine off
Loosen idler pulley bolt
snug adjuster bolt "a couple turns" you will feel it take up tension on the belt
Tighten idler pulley bolt.
Start engine, turn on headlights & A/C, stab the gas pedal.
Did the belt squeal? if yes repeat until it does not, if not your done.

May 28, 2012 | 11:38 AM

#19

Nperryman

CF Veteran

Joined: Dec 2010

Posts: 1,246

Likes: 1

From: Missouri

Year: 1998

Model: Cherokee

Engine: I6 4.0 L

Quote:

Originally Posted by Turbo X_J

Alright thanks man.

May 28, 2012 | 11:54 AM

#20

Cherokeekid4x4

CF Veteran

Joined: Feb 2012

Posts: 2,652

Likes: 2

From: Kansas

Year: 1994

Model: Cherokee

Engine: 190-hp, 4.0-liter I-6

Quote:

Originally Posted by Nperryman

Alright thanks man.

Check your manual it has a better picture

Jun 25, 2012 | 08:31 PM

#21

trevorransdell

Newbie

Joined: Nov 2010

Posts: 19

Likes: 0

From: salt lake

Year: 2000

Model: Cherokee

Engine: 4.0 L6

When you turn your air conditioning on it engages the clutch in the compressor, allowing it to be driven by the belt. i was actually on here searching this topic because mine is purring and making my belt squal when i turn it on. sounds to me like yours is doing the same thing. i'm thinkin our compressors are goin out man:/