As for the other issue - the smell - is likely a leaking valve cover gasket. Especially since the rig sat for 3 years seals, gaskets, etc may have dried up. The oil drips down from the back lower corners of the valve covers right down on the catalytic converters. The smoke then rises right into the HVAC intake. You'll smell the smoke when at a stop but not when moving.
Do a search on replacing the gaskets - several have posted How-To's. :waytogo:
Bob
i've thought this too because of other posts i saw ... i'm looking like a mother and i dont see a bit of drip or spray or anything behind in there... if it is it is very minimal and only does it once per start .... not every few minutes or whatever/