Signs Your Volvo’s Cooling Fan Module Is Failing and What to Do

 Is your Volvo car engine overheating, or does it make a strange or louder noise from the fan than usual? These could be signs that the cooling fan module has failed. The cooling fan module is designed to control the speed of your Volvo’s cooling fan, and as such, the fan speeds up when the engine is hot and slows down when the engine is cool. However, when the module fails, it can lead to problems like an overheating engine, a fan that runs continuously, or a fan that does not work.

Signs of a Failing Cooling Fan Module in Your Volvo

• Engine Overheating: The overheating of an engine is one of the clear indications that the cooling fan module is not in good shape. If your fan module is faulty, the cooling fan may not operate when it should, leading to high engine temperatures. This can result in a lot of wear and tear on the engine’s components, which is very expensive to repair.
• Cooling Fan Running Constantly: A defective fan module can also make the cooling fan run constantly, irrespective of the engine temperature. This is caused by the module’s inability to control the speed at which the fan operates, which leads to the fan running for a longer time than required.
• Cooling Fan Not Turning On: If the cooling fan does not spin at all, it could be that the module is not signaling it to do so. This is dangerous because the cooling fan will not be able to regulate the engine’s temperatures.
• Air Conditioning Problems: The cooling fan module also has a function in the air conditioning system of your Volvo. If your cooling fan is faulty, your A/C system will not blow cold air as it is supposed to. There may also be poor air circulation or hot air coming out of the vents during idle times.

Common Causes of Volvo Cooling Fan Module Failure

• Electrical Issues: The car’s cooling fan module runs through electrical signals sent by the ECU. If your Volvo has a wiring issue or a faulty relay, the module may not get the signals needed to operate.
• Defective Temperature Sensors: The cooling fan module uses temperature sensors to trigger the fan on and off. If a sensor is faulty or sends out wrong signals, the module may not switch on the fan as expected.
• Constant Use: Like any other car part, the cooling fan module may deteriorate over time and need to be replaced. Prolonged exposure to heat, humidity, and constant use puts pressure on internal circuitry, causing unsteady or non-functioning fans.

How to Repair a Defective Volvo Cooling Fan Module

• Diagnose the Problem: The first step in solving a failed cooling fan module is to diagnose the problem. A mechanic can use scan tools to check error codes and physically inspect the wiring, relays, and sensors related to the fan.
• Check Electrical Connections and Fuses: If the problem is electrical, one needs to check fuses, wires, or relays. If they are damaged or blown, they need to be replaced.
• Replace the Cooling Fan Module: If the problem is with the fan module, the best way to handle it is to replace it. A new module helps fans work more efficiently and prevents overheating problems. Your mechanic can then fit the new module and run the system to check whether it is fully functional.
• Check Temperature Sensors: Sometimes, the cooling fan has problems due to a faulty temperature sensor, and fixing or recalibrating them can solve the problem. A certified mechanic can tell whether the sensors require calibration or should be replaced.

Talk To Our Volvo Experts For Cooling System Consultation and Repairs

Do you have problems with the cooling fan module in your Volvo? Francen and Son Foreign Car is here to help you. We have skilled technicians who can diagnose and solve all Volvo cooling system problems so your car can perform optimally and safely.

Situated in Algonquin, IL, we cater to Volvo car owners hailing from nearby locations and offer reliable solutions for cooling system issues. If you require a repair or a replacement of your cooling fan module, we are equipped with the skills and equipment necessary. Call us today to learn more about our Volvo services!