HI folks first post.
My wife was driving at highway speed and the engine in my 2005 aveo with e-tec II lost power and died. She claimed a slapping sound and a rough idle prior to the engine dying.

Here is the skinny, my number 3 cylinder spark plug wire and plug is covered in oil sludge yet the oil I drained out of the oil pan was pretty clear causing a WTF reaction.
It made a sluggish sound while cranking at first but now it cranks fine and the timing chain appears to be intact and in reasonable shape. The plug shows no signs of being impacted by debris and it cranks well.

Opinions, laughs, fingerpointing, whatever help appreciated.