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.
Since there is a possibility of odor loss or problems with your sense of smell, you should respond immediately to even a faint odor of gas. Propane gas detectors Under some circumstances, you may not smell a propane leak. Propane gas detectors sound an alarm if they sense propane in the air.