Looks like leaves is the issue!!
Compressed air moved a few leaves around...and that seemed to have been enough to stop the smoking. But, looking more closely, I can see that there are quite a few leaves trapped down there. Smallest vacuum hose nozzle I have is too big to get where it needs to go. Need to find a good way of getting that crap outa there!

Thanks, guys!!!!

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Chris
1985 300SD - 'Grace' (198K mi.)
2018 Honda Civic Sport
2018 Honda CRV LX
2010 Honda Fit Sport (RIP)
2013 Honda Accord Sport (Sold)
1996 Lexus LS400 (Retired)
1995 Ford Contour SE (Retired)
1976 Porsche 914 (Sold)
1972 Datsun 240Z (RIP)