The "screwed up downspout" may have openeda path thru the ground toward the
bottom of the foundation that is not necessarily visible from the surface.
You could try moistening the area, and then tamping down the ground to tr
y to break up the underground channel.
If it was me, even tho you think there is no ponding, I would try to raise
up the surface an inch or two close to the foundation and then slope it awa
y from the foundation over a foot or two.