Build Thread My Never Ending 89 Notch Thread

Wouldn't you hear any recip noise (like a wrist pin, or loose flywheel) at any rpm, w/o putting the engine in a load situation? Those things you're talking about could be heard in park, maybe only needing some throttle jabs.

Getting it in Neutral as well . But you really have to stab the throttle to get it to occur vs driving and lugging the engine down . My other thought and really my first thought was that maybe there is a lifter bleeding down under load .
 
It doesnt sohnd like my detonation does. Yours sounds almost too repetitive to be preignition, and if it is, id bet that a spark plug would be toast.
I always get my cyber-diags wrong, but it sounds like something has came loose, or is flexing under load and hitting something
 
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It doesnt sohnd like my detonation does. Yours sounds almost too repetitive to be preignition, and if it is, id bet that a spark plug would be toast.
I always get my cyber-diags wrong, but it sounds like something has came loose, or is flexing under load and hitting something
Yup . I already went the plug route first . Fresh plugs in warmed it up drove it and came right back and pulled them . Not a spec or hint of detonation on them
 
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