Since we have a couple pics of rodent activity I will tell a quick off topic story. Many years ago (1980) my wife got in her car with her mother to visit me at my office 25 miles away. After driving to within 2 miles of my office her car died while stopped at a stop light. A guy from a dealership across the street came to help her. He raised the hood and saw smoke coming from the air filter compartment. he pulled the cover and found the carburetor and entire air filter compartment full of acorns and smoldering. I have no idea how that car was even running.