Belt squeal -
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post #1 of 3 Old 06-24-2011, 01:04 AM Thread Starter
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1998 ZJ 
Join Date: Jul 2010
Location: Bakersfield, CA
Posts: 188
Belt squeal

I am having issues with my Jeep squealing like belt noise. I bought a mechanic's stethoscope to diagnose, but found that I can't get it to squeal while in park, even when revving the engine. It happens when in drive, after it's warmed up a bit (not on a cold start), and gets more prominent (at it's worst) with my foot barely on the gas pedal. It happens with and without the A/C on. I changed the serpantine belt and it still happens, and the tensioner feels like it's doing it's job fine. What else should I check? I can't diagnose it if it has to be in drive to make the noise.

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post #2 of 3 Old 06-24-2011, 05:45 AM
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1996 ZJ 
Join Date: Sep 2009
Location: Charlotte
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Hard to say if you can't diagnose it at idle.

My distributor's bearings occasionally make noise, almost sounds like a squealing belt. More of a chirping though.

What belt did you put on it? Have you tried tightening it?
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post #3 of 3 Old 06-24-2011, 11:11 AM Thread Starter
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1998 ZJ 
Join Date: Jul 2010
Location: Bakersfield, CA
Posts: 188
Is there a way to tighten? I thought that the tensioner was auto tensioning. I've revved the engine while in park and can't get it to do it, even after stopping immediately after hearing it while driving. Could it be power steering related and not belt related? I was wondering if maybe my PS pump was on it's way out. I just replaced the gear box, but it was doing the squealing before that.
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