that is ot how you test for a cooling fan problem and you should take it to your mechanic so you dont chop off any fingers. Those fans are on a special switch that comes on when the engine reaches a specific temprature. Paul, 38 years ago there was only one fan. Now, a lot of cars actually have two fans.
2) Propane contains an odorant similar to what's put into natural gas. If combustion is not complete, or there are any leaks, then this odorant produces a smell. In addition, in larger tanks typically there is a large tablet of solid odorant sitting in the bottom of the tank.
When combusting cigarettes or weed it is the tar that makes smoke âstickâ to your hair, breath, clothes, house, car and skin. Vaping doesnât release any tar so this isnât contributing to the smell. Nicotine vapor doesnât have a smell or any lingering odour. Weed vapor does has a smell. It is no where near as much as combusting but there is still an odour. When vaping weed the smell is recognisable but it will not linger or drift to others so easily.