Why is the radiator fan not working on my 2007 Dodge Nitro?

Reasons for Radiator Fan Not Working on a 2007 Dodge Nitro
The radiator fan not working on a 2007 Dodge Nitro can be caused by several factors. Here are some potential reasons based on the search results:
1. Coolant Level: One of the first things to check is the coolant level. Adding coolant to a dry radiator can cause problems due to drastic temperature changes, so it’s important to let it cool down first.
2. Fuse and Relay: A blown fuse, bad relay, or broken wire can also cause the radiator fan to stop working.
3. Fan Clutch: Like any other clutch, the fan clutch can wear out over time. If everything else seems fine, worn-out springs in the fan clutch may prevent it from functioning properly.
4. Coolant Temperature Sensor: A faulty coolant temperature sensor can also be a cause. The sensor sends a signal to the computer to turn on the fan, so if it’s not working or reading correctly, the computer may not know when to turn the fan on or off.
5. Other Potential Causes: Other potential causes include a faulty fan assembly, fan motor, or A/C pressure switch.
It’s important to start with the simpler checks, such as coolant level and fuses, before moving on to more complex troubleshooting.
If none of these initial checks resolve the issue, it may be necessary to consult a professional mechanic for further diagnosis and repair.
I hope this information helps you diagnose the issue with the radiator fan on your 2007 Dodge Nitro!

What would make radiator fan not to come on?

Reasons Behind A Malfunctioning Radiator Fan

• Blown Fuse. All the electrical equipment has a fuse to cut off the input to the system to prevent it from malfunctioning.
• Coolant Temperature Sensor.
• Wiring Problem.
• Low Coolant Levels.
• Faulty Radiator Fan.
• Faulty Fan Relay.
• Fan Controller Module.

When should radiator fan turn on?

between 200 and 230 degrees Fahrenheit
In most vehicles, the radiator fan is programmed to turn on when the engine coolant reaches a temperature between 200 and 230 degrees Fahrenheit (93 to 110 degrees Celsius). However, some vehicles may have different temperature thresholds for the radiator fan to activate.

Why is my radiator fan not engaging?

It could be a problem with the fan motor, temperature sensor, fan control relay, or wiring. The Check Engine Light might come on. With modern cars, a DTC will be triggered that illuminates the light on the dash when it exceeds normal operating temperatures. It might be accompanied by a message on the cluster too.

How do I know if my radiator fan fuse is blown?

You might see a temperature light pop up on your dashboard. In this case stop driving immediately. And turn off your car. The fifth symptom is a blown cooling fan fuse.

Is there a fuse for the radiator fan?

And sometimes a minimum sign as well make sure the engine is cold and open the container carefully. And then fill it up with antifreeze up to the maximum. Mark.

What activates the radiator fan?

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. This is linked to a thermostat and works much like your home’s HVAC system.

What sensor turns on the radiator fan?

Yes, the coolant temperature sensor is an important component in controlling the radiator fan in many modern vehicles. The coolant temperature sensor monitors the temperature of the engine coolant and sends this information to the engine control module (ECM), which uses it to determine when to turn on the radiator fan.

Can a bad thermostat cause fan not to come on?

An unlikely, but possible, cause is a bad thermostat. Try turning the Fan switch to the “On” position to see if the blower comes on. Watch the video. If the blower operates in the “On” position and does not operate when the air conditioner is running, you may have a bad thermostat.

What happens when you have a bad radiator fan sensor?

The faulty sensor might send a wrong signal to the computer, leading to a miscalculation in the engine timing and fuel calculation. If the computer keeps receiving a cold signal from the faulty sensor, it will interpret this as if the engine is cold and continue to inject more fuel.

Why is my radiator fan suddenly not working?

Check for current from the relay to the fan. That is where the current needs to flow. If there is voltage present there, a fault in the fan is the reason for the radiator fan not working. It is then, the fan that you will need to replace.