I wonder if your knock is outside air temp related?
There's a thread in here somewhere where I was noticing a similiar knock in mine last winter. Seemed to only do it with air temps under 30. I checked balance rates, posted a log of it doing it, nothing...
Changed from stock, to banks, to efi, still there, knock knock knock.
Pulled inside a heated garage to dyno the truck, and no knock. Spring came, no knock.
We'll see what it does in a couple months
Edit:
Fwiw. I just checked my milage too. Drove from home to Goshen IN to Terre Haute and back home. Roughly 625 miles. 150 ish on 2 lane roads the rest interstate at or above posted limits. 24.6 for the trip.
There's a thread in here somewhere where I was noticing a similiar knock in mine last winter. Seemed to only do it with air temps under 30. I checked balance rates, posted a log of it doing it, nothing...
Changed from stock, to banks, to efi, still there, knock knock knock.
Pulled inside a heated garage to dyno the truck, and no knock. Spring came, no knock.
We'll see what it does in a couple months
Edit:
Fwiw. I just checked my milage too. Drove from home to Goshen IN to Terre Haute and back home. Roughly 625 miles. 150 ish on 2 lane roads the rest interstate at or above posted limits. 24.6 for the trip.
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