I know I need it, but I’m going to get a new car in a couple of months, and I just really need something to get me to work and to school, which is only about 15 min drives. My car sounds the same, and everything sounds fine, but when I was replacing the AC Condenser, I just noticed that they weren’t running. So can I make by for the next couple of months since it’s gonna be cold outside? I have a 2000 Toyota Celica.
Most newer cars have thermostatically controlled fans. Which means fans start spinning when certain temperature is reached. To test them out just run your car at idle and wait for your car to hit over 90 degrees Celsius, keep in mind some fans start when the temperate hit 100+ degrees Celsius. To answer the question, yes, most likely you will be fine without a fan running. However you might overheat if stuck at traffic or idle for a while.
Not sure where you live, but in my area (Finland, Helsinki) only the three summer months generally require cooling fans. If the daily mean temperature is below 10 degrees Celsius and the daily high temperature is below 15 degrees Celsius, most likely you are fine without the fans. Of course using the air conditioning would increase the heat load on the cooling system, but then again do you need air conditioning unless it's hot?
In fact, unless it's so hot that you use air conditioning for other purposes than dehumidifying, you probably are fine without the radiator fans.
I have never owned a car that would rotate the cooling fans on other months than the three summer months in my area. So it could be that your fans are working but it wasn't hot enough for them to turn on. Fans are required only when it's hot and when the car is idling at standstill (or moving very slowly) and when the idling period is so long that the temperature limit is exceeded.
However, it is worth mentioning that excessive idling at standstill could change the game depending on the type of winter in your area. Then air is not moving and the cooling fans might be needed. That would require a major traffic jam or deliberate idling because even two cycles of usual traffic lights aren't so long that overheating would be possible at traffic lights.
Also unless the car is left idling unattended, the driver most likely will see from the temperature gauge if it overheats. So keep an eye on the gauge and you'll be fine.