A Radiator Fan Control Module Replacement cost in Rochester Hills in 2023

The average cost for a radiator fan control module is $646

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AVERAGE COST IN Rochester Hills

A Radiator Fan Control Module Replacement costs by shop in Rochester Hills.

CarAdvise Customers save an average of $129 on A Radiator Fan Control Module Replacement.


Average cost of A Radiator Fan Control Module Replacement for popular vehicle models in Rochester Hills:

Car Model

Avg. cost


THE IMPORTANCE OF A Radiator Fan Control Module Replacement

What is a radiator fan control module and how does it work?

A radiator fan control module is a component of your vehicle’s engine cooling system. The radiator fan assembly, also known as a cooling fan assembly, is mounted directly behind the radiator in the engine compartment at the front of your vehicle. The fan control module serves to switch the fan on and off at the appropriate time.

One of the byproducts of the combustion process is that your engine gets hot quickly. Friction from all of the moving parts inside also contribute to heat buildup. In order to prevent overheating, liquid coolant (“antifreeze”) is circulated through the engine block where it picks up some of the heat. The coolant is pumped out of the engine through rubber hoses to the radiator. There inside the radiator, the coolant flows through a series of small tubes, transferring heat to the tubes along the way. The heat is passed on to a matrix of wafer-thin aluminum cooling fins attached to the tubes, and air passing through the radiator allows that heat to dissipate into the atmosphere.

The radiator fan helps to draw air through the radiator to help in this process, especially when your vehicle is standing still. Some engines, especially older models, feature engine-mounted cooling fans. Most modern vehicles have electric radiator fan assemblies, each with a radiator fan motor at its core. The fan control module serves to turn the fan on and off, as well as change the fan speed depending on the operating conditions and air flow requirements of the radiator. The radiator fan control module uses inputs from several spots on the vehicle to determine the optimum speed to spin the radiator fan for cooling.


How do I know if my vehicle needs a radiator fan control module replacement?

A malfunctioning radiator fan control module can prevent the radiator fan from spinning at the proper speed for engine conditions. It might keep it from working altogether. Because of this, a bad radiator fan control module can lead to any of the following:

Engine overheating

Radiator fan failing to run or running non-stop

Fan running at one speed, regardless of engine conditions

Engine overheating

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How does a technician perform A Radiator Fan Control Module Replacement ?

A radiator fan control module can be located in a number of places, including the firewall (cowl section) of a vehicle. A common mounting location, however, is directly attached to the radiator fan assembly. To replace a radiator fan control module, a technician will follow these general steps:

  • Remove shields, guards, covers, or ducts to gain access to the radiator fan control module
  • Unplug the wiring connected to the radiator fan control module and remove any fasteners that hold the module in place
  • Remove the old module and insert the new one
  • Fasten the module in place and reconnect the wiring
  • Verify the repair by road testing the vehicle until it warms up and by checking for any radiator fan control module related codes with a diagnostic tool


Where is the radiator fan control module located?
The radiator fan control module is often located on or near the radiator cooling fan, just behind the radiator in the engine bay. It might be mounted directly to the fan assembly (housing) or to another component nearby. The module could also be located on the firewall (back wall of the engine compartment) or even below the dashboard.
Can a bad thermostat cause the radiator fan not to work?
A bad thermostat would not cause the radiator fan itself to malfunction, but it might prevent it from turning on. That is because a thermostat that sticks open does not allow the engine to warm up to a normal operating temperature, therefore keeping the fan control module from cycling the fan on.
Can you drive a car with a bad radiator fan control module?
Driving a car with a bad radiator fan control module is not recommended because it is possible, even likely, that insufficient amounts of air will pass through the radiator to keep your engine cool without it. If your engine overheats, the results could cause thousands of dollars worth of catastrophic engine damage - or completely destroy your engine.

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