Radiator fan not working

The most common reasons a radiator fan is not working are luckily due to a blown fuse, bad relay, or a broken wire. It can also be caused by a faulty coolant temp sensor, low coolant level or the fan itself can be damaged.

1. Can I drive with one radiator fan not working?
2. Should radiator fan come on when car starts?
3. How long can you drive a car without a radiator fan?
4. How much does it cost to replace a radiator fan?
5. How long do radiator fans last?
6. What does a bad radiator fan sound like?
7. Can a bad thermostat cause fan not to come on?
8. Should radiator fan turn on when AC is off?
9. Why do fan motors fail?

Can I drive with one radiator fan not working?

Yes, technically your engine does not need a cooling fan to operate. ... If the radiator does not have cool air blowing on it constantly, it will overheat eventually, so you'd need the perfect combination of weather and traffic to drive effectively without a radiator fan.

Should radiator fan come on when car starts?

The engine temperature should trigger the fan to turn on. It will also turn the fan off once the engine has cooled to under 200 degrees. You may have heard of a part called the radiator fan switch or temperature fan switch.

How long can you drive a car without a radiator fan?

Typically, you would be alright for the first 5–7 miles or about 2.5 minutes which is when the thermostat opens up and you can get heat. At that point turn your heater on fully, which will help cool the coolant. As long as you drive around 40 MPH then the engine should stay within a safe temp range.

How much does it cost to replace a radiator fan?

The average radiator fan replacement cost is typically between $550 and $650. In many cases, the radiator fan will cost around $400 to $450, while the labor adds $150 to $200. However, some vehicles can be more expensive, depending on the design.

How long do radiator fans last?

In most cases, a properly maintained radiator fan will last between eight and ten years. When the radiator fan fails, it should be replaced as soon as possible.

What does a bad radiator fan sound like?

One such problematic issue, the excessively loud radiator cooling fan, is a common plague many automobile owners will experience. Your radiator fan should be audible. ... Worn bearings, bent or broken blades, and unbalanced rotating assemblies can cause a fan to screech, howl, or otherwise make noises it shouldn't.

Can a bad thermostat cause fan not to come on?

Broken Thermostat

Thermostats are known to go bad and cause all sorts of cooling issues. ... If this thermostat doesn't open when the engine reaches the working temperature, the coolant will stay inside the engine block and the engine will start to overheat. This will result in the radiator fan not working.

Should radiator fan turn on when AC is off?

The AC controls may operate the fan from a place in the control circuit after the normal temp sensor so everything is OK when the AC is on. Also the Fan may be on continuously when the AC is operating.

Why do fan motors fail?

The main causes of failure are loss of lubricant, a failed run capacitor, a failed bearing in a belt drive, a little water dripping into the windings or a voltage problem. So technicians should carefully check to find the cause of a failure before changing the motor.