Quote:
Originally Posted by piper6909
Heat shield?
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Possible I guess, but the sound doesn’t change with rpm as I think it would if it were a vibration. It sounds more like marbles in a coffee can, but not very loud or tinny sounding. I’d love to hear if these water pumps fail like this. Or chain tensioners. I think I had an old Alfa with a bad water pump that may have sounded vaguely like this. But it leaked coolant. Thank you for the suggestion.