5 Reasons Why Your GMC Duramax Radiator Fan is not Working in Jeffersonville

5 Reasons Why Your GMC Duramax Radiator Fan Is Not Working in Jeffersonville

In your cooling system, the radiator fan is placed between the radiator and engine.

Moreover, the radiator fan pulls cooling air through the engine when the vehicle is:  Stationary  Moving at high speeds

Having a bad radiator fan in GMC Duramax is very bad for the engine.

Eventually, it may cause the engine to overheat and can lead to costly repairs.

The below points define the reasons behind the radiator fan is not working in GMC Duramax.

Failed Coolant Temperature Sensor

Engine control units use a temperature sensor to know when to start the radiator fan.

If the temperature sensor is broken, the control unit will not know when to start the radiator fan.

Lack Of Coolant

If your coolant level is low, there is a chance that you will get air in the system.

Due to these reasons, the radiator fan is failed and the engine becomes overheated.

Blown Fuse

In general, the radiator fan in a vehicle are often using a big fuse of around 50A.

If the radiator fan is nonfunctional, then go through the user manual to locate the fuse of the radiator fan.

Broken Wires

If the fan is not working even when the vehicle is overheating, there might be a wiring issue.

Check the wirings going to the radiator fan from the control unit or relay in GMC Duramax.

Faulty Fan Relay

The radiator fan is often drawing so much power, so a relay powering the coolant fan.

If the relay can get damaged, then the radiator is not getting enough power to run.

Conclusion

Radiator fan plays a vital role in your vehicle for running the engine at optimal temperature.

When the radiator fan is failed in GMC Duramax, then consult a mechanic to fix it immediately.

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