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02-19-2013
if the sound goes away with when you raise the rpms it is probably the flexplate. you could also get under it and take the inspection cover off and shine a light up on the flexplate to see if you can see if its broken. it does not sound like a spun bearing/rod.
02-20-2013
Ok guys got a vid of it while idling then revd up a few times. Revd it up to 2500 then idled then 3000 then idle then 2500 to 3000 then off.. Not thinking its the flexplate as knock is pretty consistent.. Anyways here's the vid as promised hopefully it sheds some new light on the situation... Once again thnx again for all the help fellas..
<iframe width="560" height="315" src="2000 GTP Engine Knock - YouTube" frameborder="0" allowfullscreen></iframe>
02-20-2013
Listening right now.
It's very consistent, very light. If you start up a bad bearing motor and rev quick to say 2500, just a quick throttle blip and let right off, there's typically a distinct banging on let off. Your vid it's consistent. More like one cylinder not firing.
Do you have a scanner of any sort to look for misfires on one clylinder? Did you do any work to it recently? Sounds too nice and consistent.
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