Bad smells when the fan is on often indicate air-con problems. Water can pool in the system, which encourages various types of growth. Running the air-con on full for half an hour may resolve it. A dehumidifier in the vehicle may help.
B. You need to make sure your a/c drain lines are clear - a mechanic can show you how. And then get rid of odors. I put a link to an info page with smell removal ideas in the related links part of this question.
Have the fan blowing the air out of the room! This creates a vacuum effect. It's like sucking out all of the bad odor. Most people want to bring fresh air in, but trust me the other way works better!
An odor can be good or bad.
try shampooing the seats & rug in your car..
it depends on the car, but its usually a bad connection in the wires
Either a short to power or a bad fan switch.
All hamsters give a bad odor.
how do you control bad odor or smell due to sweating
the odor will get enbeded in the upholstory. Leave them outside for a while.
If the clutch is bad, you would be able to hold the fan and start the car. The fan will not spin if the clutch is bad. If the clutch is good the fan spins at a high speed.
The genetic disorder Trimethylaminuria causes bad body odor.
The catalytic converter or a dead body in the trunk--you pick
my car over heat but the fan is runing and the and the temperature gage doesn't go hot until am going up a hill