My Fury has started with a decent rattle sound at idle that has been getting a little more consistent today after some WOT tests from stop in a parkinglot.. I have had some starter kickbacks after installing a multispark and it now makes the same rattle sound when cranking. Happens more in N and P but I can make it go away sometimes by shifting into Drive or reverse. How would I go about diagnosing a bad flexplate and torq convertor? Id rule out any valvetrain noise based on where its coming...
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