ENGINE SQUEAKING

2004 CHEVROLET VENTURE
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PROLINE GURU
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Noises problem 6 cyl Front Wheel Drive Automatic 84500 miles

i have a squeaking noise coming from the engine, i thought it was the serpentine belt,so i replaced that. a mechanic said it was the alternator bearings, so i replaced the alternator,but the noise returned the next day,so now i am not sure what it could be,can you help me? also, should i get my money back from the shop since it was not caused by the alternator?
Mar 26, 2009 at 11:23 AM
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F4I_GUY
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With the belt off, spin every pulley and listen for a grinding noise. As you spin the pulley it may feel rough and gritty as well. If it does, replace the bearing/pulley.
Mar 29, 2009 at 12:11 PM
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POPPADOC
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I removed the belt and it's still squealing. It only does when driving. I replaced the water pump, belt, and I took the belt off and Crunk it. It still seals when accelerating
Jul 30, 2017 at 5:32 PM
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STRAILER
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Hello,

Here is a guide that will help you.

https://www.2carpros.com/articles/car-squeaking-noise

Please let us know what you find.

Cheers, Ken
Aug 1, 2017 at 10:10 AM