My 2001 1st generation insight has developed a strange pattering noise. It happens only when the clutch is in, disappears if the clutch is depressed and is most noticeable in low gears and accelerating but is there in all gears. It is also there faintly when in neutral but again disappears when the clutch is depressed. The car has done 133k and as far as I can find out has not had a new clutch. I have attached a mp3 which hopefully demonstrates how it sounds. I've search the form but can't find anything that sounds quite like this.
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