Question about 2008 Jeep Compass

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Noise coming from front of2.4 08 jeep compass pulleys can't locate which one. how to check

I have a loud noise coming from the front pulley section on my 2.408 jeep compass. I bought a mechanics stetchescope and still can't locate noise. I believe it is either the alternator or power steering pump pulley. Any help is appreciated. thanks. Jim

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Often the Serpetine pulley bearings are the problem. You could remove the belt and check everything by turning the Alternator, power steering, and belt pulleys by hand.

Posted on May 08, 2014

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Hard to tell without hearing what your hearing how ever if the alternator runs off a seprate belt remove and see if the noise is gone

Posted on May 08, 2014


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Posted on Jan 02, 2017

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SOURCE: 1998 Jeep Grand Cherokee Power Steering Pump/Pulley/Belt

I see this is a two part question...
In replacing the alternator, there is no reason at all to be messing with the pulley on the power steering. That pulley is pressed on and though you could remove it with a puller it is far more difficult to re-install without the proper tools. (it is not hammered on). Power steering pulleys don't just fall off. They are so tightly pressed onto the shaft that they don't even require a retaining bolt to hold them on.
Without the benefit of being able to examine it myself, I'd have to guess that either you originally had a mis-match of pulley to pulley shaft and the pulley was sliding on the shaft (so remote a concept that you may be hit by a meteorite if you buy that) Or someone removed it for an unknown reason and did not properly re-install it.

Posted on Feb 01, 2010

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SOURCE: Purchased a 97 Jeep Grand

when you but a aftermarket power steering pump the only thing you get is the pump so make sure you take off & keep your pulley & reservoir BUT you can buy the pump with the reservoir but you still need your pulley & dip stick...

Posted on Aug 16, 2010

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SOURCE: I own a 2007 Jeep

From what I have found it is usually the alternator in those cars. If the car is not giving the low-voltage warning light (looks like a red battery), then it is the "decoupler pulley" on the alternator itself. It is about a third to half the cost of an alternator, and you still need to take out the alternator to change it. A good video on taking the alternator out is here:
The tool to take the pulley off is expensive; NAPA sells it for $216. the part number (AC Delco) is 91024. I have seen videos on line though with people removing it with a 17mm hex (allen key) socket instead. the part number for the pulley (Gates) is 37018P. Chrysler doesn't sell it separately! NAPA sells it for about $132. In my case I waited to long to buy the pulley and the alternator wound up biting the dust too.. so I replaced the whole thing. $306 from NAPA; remanufactured with 5 year warranty. Part # NEU 2139731.

Posted on May 04, 2013

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With the belt off, try to spin each pulley that spins and see if there is any roughness or flat spots on the bearings that you can detect with your hands.

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