C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

pulley squeal

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Old Aug 28, 2011 | 05:24 PM
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klkordzi's Avatar
klkordzi
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Default pulley squeal

The air conditioner pulley on my 85 is making a high pitched squeal. the noise seems to coming from the front of the pulley. The belt is new and the air conditioning works. Any ideas or suggestions.
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Old Aug 28, 2011 | 05:33 PM
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From: Naples Campania
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You can try some of this stuff. I used it on my Bonneville SSEI when I got a new belt and it worked great. You might also have an A/C compressor going bad. Does it happen on the time or just when it is on or off?

If it only happens when it is on, then it might be starting to cease and is rubbing the belt. If it happens only when it is off, then the A/C clutch may be doing something weird. If all the time, then the bearings or something along those lines might be going bad inside. Your probably going to have to get it rebuilt either way.

My 2 cents.
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Old Aug 28, 2011 | 06:44 PM
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I had that in my 95 and WD40 took care of it.
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Old Aug 29, 2011 | 09:28 AM
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Originally Posted by PLRX
I had that in my 95 and WD40 took care of it.
My 87 had that problem and wd-40 about once a year "a little shot directly on the front/center of pulley while running" has worked for me as well.. everything still functions fine and have been doing that on the same vette since 1997.
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