Re: Squealing fan belt driving me CRAZY
The small 1/2" is most likely riding on the bottom of the alternator groove, so it's slipping and not spinning the alternator fast enough to make the noise. I'm wondering if you don't have a defective alternator.
Put a 4 to 6 amp battery charger on the battery for about 6 hours, then try the wide belt and see if you still get the noise.
Belts not only need to be the correct width, but the angle of the V must be correct also.
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