Knocking · CutterUp Diesel Lab

Knocking

2006 5.9

During the winter I ran it low on oil. When some knocking started shut it down. Added about 6 ltrs of oil and very shortly the knocking went away. Drove 25min then dropped the mixed oil and it was kinda sluggy draining. Thought I would fill about 10 ltrs of atf and ran only about 4 idle min. Dropped it and fresh 5/40 and filter. Ever since then knocking has been present. Parked all winter. Just rolled in new rod bearings and fresh oil with same knock. Cylinder walls didn’t really show anything. I’ve got 60psi oil pressure at idle. Disconnected inj one by one and cp3’s.

My question is next steps, pull inj and Borascope and see if there something I see or drop pan again and head and see about wrist pin loose or excessive piston slap?

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Knocking