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.
What does propane and butane gas smell like? Propane and butane gas are odourless, just like natural gas. In order to detect any leaks, a strong, bad-smelling substance is added to the gas. The odour that you smell when there is a leak is comparable to rotten eggs. Back to overview.