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

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Old Dec 28, 2009 | 09:43 AM
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I have a squeak on my 95 vette that is proportionate to engine revolutions. At idle it squeaks about every ¾ of a second. It’s barely audible inside the car. If the Procharger head unit had a bearing going out it would be constant and probably have a roar vs. a squeak, right? It has 20K trouble free unabused miles on it.
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Old Dec 28, 2009 | 09:57 PM
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Originally Posted by cmtatlanta
I have a squeak on my 95 vette that is proportionate to engine revolutions. At idle it squeaks about every ¾ of a second. It’s barely audible inside the car. If the Procharger head unit had a bearing going out it would be constant and probably have a roar vs. a squeak, right? It has 20K trouble free unabused miles on it.
which procharger model do you have? My p600b is squeaky and thats normal. Its just a 'loud' blower.

You mention 20k trouble free miles, Im going to guess that something has changed in the normal noise you are used to.

Maybe its the alternator?

Are you running a 6 rib setup (with the serpentine accessories driven off the same belt?) or a separate, dedicated (it only runs the blower) 8 rib setup?
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Old Dec 29, 2009 | 10:48 AM
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It's a P-1SC and the noise is new. The alternator has 9K on it and I run the 6 rib serp. belt that runs everything.
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Old Dec 29, 2009 | 09:33 PM
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Remove serp belt and turn every pulley, including idlers an accessories, and see if any feel rough, loose, or stiff. Also, is your crank hub keyed?
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Old Dec 30, 2009 | 08:46 AM
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Will do. I'm pretty sure the crank hub is keyed
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Old Jan 5, 2010 | 08:59 PM
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Originally Posted by cmtatlanta
Will do. I'm pretty sure the crank hub is keyed
If you're not sure it's keyed then it probably isn't...good luck!
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