Originally Posted by
nickxau
Hi buddah51, please do not take any offence to my words as that is not my intentions.
From reading your posts I believe you're a veteran mechanic and I have no doubts you're an expert in that field. But as I have generally stated before, would you regard your hearing to be to be sensitive? Obviously if one can no longer hear the pinging, they can assume that the issue is resolved but that doesn't mean the issue is actually resolved. As we get older our ears get less sensitive to sound and we all know that for a fact. Could this be a factor maybe?