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Honda Civic Radiator Fan

How to Diagnose Honda Civic Radiator Fan Problems

One of the most essential parts of your car's cooling system is a Honda Civic radiator fan. It pushes cold air inside the radiator core to help cool down the temperature. It also dissipates heat from the coolant or antifreeze. The fan may experience several problems along the way, which can give you headaches. When it fails, you'll suffer from a series of engine overheating and stalling. You better be ready to do some troubleshooting if you feel that your radiator fan is starting to show symptoms of failure.

Inaccurate temperature reading from the thermostat

The amount of cool air needed in the car's cooling system is determined by the thermostat. But it won't give accurate temperature reading if the clutch in the radiator fan is broken. The clutch regulates the speed of the fan and turns the fan on when the engine requires cooling. To check the true condition of the clutch, inspect the fan thoroughly. Look for oil deposits around the center hub of the clutch. Leak is an indication of radiator fan failure. Also, try to move the fan clutch back and forth. If the fan seems to wobble a lot, the clutch must be replaced to restore the normal operation of the radiator fan.

Poor airflow

Poor airflow within the vehicle's cooling system can lead to overheating. This problem is caused by a faulty fan shroud. When the fan shroud comes off from its mounting, the engine won't get enough enough cool air. That is because the fan shroud directs cold air straight to the engine. To inspect the shroud, look closely to the four mounting bolts. Make sure that they are complete. If any of them went missing, you must put a new one. Tighten the bolts using a socket wrench.

Inadequate supply of electricity

Lack of power explains why your radiator fan stops working. In this case, you should check the electrical system of your fan, which includes the wires and the fuses. Before you begin, disconnect the negative terminal from the battery first. Check the wires for corrosion. All rusty wires must be replaced. Also, check if the wires are properly attached together. If you see that the connections are loose, solder the wires or connect them with electrical tape. Check the fuse, too. Find fuse number 13 and inspect if its wires are burnt.

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  • How to Prevent your Honda Civic Radiator Fan from Failing

    For sure, nobody wants to experience overheating engine, because it's really annoying when your car suddenly stopped running in the middle of the road. To prevent this, you must know how to take good care of your Honda Civic radiator fan. This component helps a lot in lowering the temperature under the hood to keep your Civic moving. Aside from regular cleaning, you have to do other things to maintain your radiator fan. Here are some very important care tips and reminders:


    Clean your radiator fan regularly.

    Your radiator fan can get congested with dust and dirt over time. This makes your fan to revolve extremely slow. Make sure to clean your fan four times in a year to prevent such mishap. To wipe off dirt buildup, use a degreaser. Apply a liberal amount of this product on rag and start rubbing the fan blades. There are areas that you can't reach easily. Use a can of compressed air to blow off dust.


    Ensure a good ground connection.

    Inspect the electrical cables periodically for corrosion and flaking. Rust impeded the flow of electricity; therefore, it must be eliminated in the system completely. Keep the wires firmly attached to the wiring harness. If possible, solder every cable to prevent them from getting loose.


    Protect your fan assembly from rust.

    Your radiator fan is extremely exposed to the major elements that cause rust. Since it's impossible to completely keep the radiator fan out of these harmful factors, protection is the ultimate key. Lubricate the bearings of the fan clutch regularly to inhibit corrosion. Protect the wires as well by wrapping electrical tape around them. This helps a lot in stopping corrosion and improving their insulation.


    Keep your radiator fan properly mounted.

    Always check if the mounting bolts of your fan are complete. Replace any missing ones to prevent the fan from shaking or wobbling under the hood. Make it a habit to retighten the screws to keep the radiator fan steady.


    Fill the reservoir with enough coolant.

    To maximize the power of your radiator fan, always get fresh new coolant. Antifreeze or coolant absorbs and transfers heat. It works with the radiator fan in providing a tolerable temperature inside the engine and the passenger cabin. If you see that there's not enough coolant in the system, refill the antifreeze reservoir.