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Unread 03-24-2013, 11:44 AM   #1
3hundredkplus
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1996 ZJ 
 
Join Date: Mar 2013
Location: lancaster, pa
Posts: 17
squealing pulley

So my power steering pulley squeals when I accelerate. I know its the pulley, when I lubricate it the noise stops for a minute, then returns. There is a new belt, fluid is full, and the sound just started after a hard brake situation. Any help? (5.2 L v8)

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Unread 03-24-2013, 05:11 PM   #2
Oldfrog
Web Wheeler
1997 ZJ 
 
Join Date: Feb 2008
Location: Louisiana/Texas
Posts: 3,893
Are you sure it's the PS pulley and not the tension pulley?
You mentioned lubricating it.
Is it belt squeal, or a bearing ?
What kind of belt are you using?
I found that only Gates belts work on my 4.0. Others like the gator back belt.
No one uses a Dayco belt for more than a week. They cant handle it.
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Unread 03-26-2013, 05:56 PM   #3
3hundredkplus
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1996 ZJ 
 
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Location: lancaster, pa
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I am positive its the ps pulley. I just replaced it. And the tensioner is on the other side of the engine so I highly doubt lubricating the ps pulley would stop squeal from the tensioner. the grooves of the pulleys are clean and there wasn't squealiing until the other day(150 mi on the belt). And the squeal goes away when lubricant is added to the ps pulley near the pump shaf.
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Unread 03-27-2013, 05:52 PM   #4
3hundredkplus
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Turns out it was the belt afterall. Might have gotten some coolant/oil on it. Anyone know a good cleaning procedure to eliminate squeal on the belt?
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Unread 03-27-2013, 06:37 PM   #5
zjosh93
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1993 ZJ 
 
Join Date: Aug 2010
Location: Austin
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I soak them in a 5-gallon bucket of warm soapy water, scrub with a fine wire brush, pull a hook pick through the grooves, rinse, and let dry thoroughly before reinstalling. Naptha (white gas) or carb cleaner/brake cleaner also works to get rid of oil, grease, or coolant in the grooves. The wire brush also breaks up any shiny/slippery spots on the face of the belt.
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Unread 03-30-2013, 03:16 PM   #6
3hundredkplus
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1996 ZJ 
 
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Location: lancaster, pa
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I used the water and soap and hit the pulleys with some solvent and a brush. I was a little hesitant to use petrol based solvents on the belt though for risk of drying out the rubber. Water, soap, and a little scraping worked great. Last 2 days... no squeak.
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Unread 04-12-2013, 10:08 PM   #7
StPaul59
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1998 ZJ 
 
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Location: St Paul, MN
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Quote:
Originally Posted by 3hundredkplus View Post
I used the water and soap and hit the pulleys with some solvent and a brush. I was a little hesitant to use petrol based solvents on the belt though for risk of drying out the rubber. Water, soap, and a little scraping worked great. Last 2 days... no squeak.
If the noise comes back I would replace that tensioner.
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