Oh yes, that is my car engine. I heard this awful bumping noise that scared the life out of me while I was driving on Saturday. I worried about it all day Sunday and didn't drive anywhere. I checked to make sure my bike tires were properly inflated. I drove to the dealership. I explained to service that I heard this weird bumping, popping noise.
We opened the trunk, and voila! Walnuts galore! Fortunately this turned out to be one of the easiest repairs ever. We pulled about 80 nuts from my engine block and surrounding areas.
There is going to be one mighty pissed squirrel in my neighborhood!