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  #1  
Old 01-05-2010, 10:09 PM
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Exclamation Weird noise coming from pulley?

Hey guys there's a weird noise coming from a pulley, and I'm not a gear head like most of the guys around here... I was thinking maybe getting it replaced either buying a used one or getting it new, here's a quick video of the noise it makes



Any questions let me know!
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Old 01-05-2010, 10:19 PM
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Kind of hard to hear .
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Old 01-05-2010, 10:24 PM
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Sounds like a belt or bearing noise. Try spraying some belt dressing or silicone spray on the belt when its running and see if the noise changes.
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Old 01-05-2010, 10:33 PM
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Quote:
Originally Posted by Remerson228 View Post
Sounds like a belt or bearing noise. Try spraying some belt dressing or silicone spray on the belt when its running and see if the noise changes.
I changed the belt about 2 weeks ago so I know it can't be the belt, and like you said it might be a bearing... I will check on autozone tomorrow.
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Old 01-05-2010, 10:36 PM
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Like Tom said, it's a bit difficult to make out, but an alternator or water pump bearing wouldn't surprise me too much.
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Old 01-06-2010, 12:40 AM
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OK, i'm only a shade tree mechanic, this is what i would do, to make sure where the noise is coming from, take something like a cut off broom handle, about 3 feet long, hold it against the part that you believe its coming from, or close to it. hold the other end with your hand, put your ear on your hand, with a slight separation between the stick & your ear, use it on all pulleys, believe me, it works as good as a stethoscope. you can also use this method to figure out other noises around your engine compartment, tappet noise, etc
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Old 01-06-2010, 09:02 AM
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Ok I know Jeep TJ's (AKA MOPAR) and they are notorious for the idler pulley squealing and that looks to be what you are pointing/leaning at, So that would be where I would be starting.
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Old 01-06-2010, 09:10 AM
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Or the tensioner for that matter. Take the belt off and spin each pulley by hand and check for roughness, excessive looseness and noise.
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Old 01-07-2010, 09:50 PM
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Loosing any coolant? Wobbling water pump pulley would allow a little slack.
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Old 01-08-2010, 09:12 PM
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Quote:
Originally Posted by kicknjeep View Post
Ok I know Jeep TJ's (AKA MOPAR) and they are notorious for the idler pulley squealing and that looks to be what you are pointing/leaning at, So that would be where I would be starting.
I will take a look on that.

Quote:
Originally Posted by Remerson228 View Post
Or the tensioner for that matter. Take the belt off and spin each pulley by hand and check for roughness, excessive looseness and noise.
Will do that see if I can find what it is.

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Originally Posted by deanthecrabman View Post
Loosing any coolant? Wobbling water pump pulley would allow a little slack.
Hmmm I guess I need another video to show you that!
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