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.
Be alert for the odor of propane when around a gas appliance or container. If you smell gas, do not try to light the appliance. Call HomeWorks for a service technician to assist you. Read and follow the operating and lighting instructions and warning labels provided by the appliance manufacturer.