the belts whine when worn and you might geta vibration if very worn , are they cracked on the V part which rubs the pulleys? cracks can be 66% through before they are a problem . Belts last about 20000 - 30000 miles . Belts wouldnt cause excessive noise ... Is the engine revving to much or is there a rumbling grating worn bearing sound ?
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 My comments are only based on my opinions and vast experience .
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