Why Does My 6.0 Powerstroke Fan Slipping?

The 6.0 Powerstroke engine, similar to any other engine, overheats due to burning the fuel to run the vehicle smoothly. Here’s where the vehicle’s cooling system comes into play. But, due to the fan slipping, your vehicle’s cooling system is more likely to malfunction. 

Why does the 6.0 Powerstroke fan slipping issue occur? Well, some of the most frequent reasons why the radiator fan on Powerstroke 6.0 slips are broken fan, bad fan clutch, blown fuse, faulty temperature sensor, and more. So whenever you notice the issue of the fan slipping, you should fix it ASAP.

Letting the issue of the radiator fan slipping negatively affects the cooling system of your engine. Therefore, this blog covers a compact guide regarding fan slipping of 6.0 Powerstroke diesel. Its causes, symptoms, solutions, and more. 

Why Does My 6.0 Powerstroke Fan Slipping?

Symptoms Of A 6.0 Powerstroke Fan Slipping

Most 6.0 Powerstroke diesel engine fan slipping symptoms are related to engine overheating issues. This is because the radiator fan is one of the most integrated parts of the engine cooling system. 

Let’s know some of the most common symptoms of a fan slipping on Powerstroke 6.0. 

  • Engine overheating.
  • Lack of heat in winter. 
  • Loud noise comes from the fan.
  • The engine temperature warning light comes on.
  • Poor fuel economy.
  • Smoke comes out when you open the hood of your car.

Why Does My 6.0 Powerstroke Fan Slipping? 

The main job of the radiator fan on Powerstroke 6.0 is to participate in the engine cooling system. More precisely, it absorbs the heat of the coolant used to reduce the heat of the 6.0 Powerstroke engine. 

However, if the fan of Powerstroke 6.0 goes bad or slips, it can’t pull the air through the radiator, and the issue of engine overheating occurs. It comes into action when your car’s engine is idle, or the vehicle is at low speed and doesn’t find cool air to lower the coolant temperature. 

Now, let’s find out some causes of the Powerstroke 6.0 fan slipping.

Bad Radiator Fan Clutch

If the radiator fan clutch becomes faulty, it cannot generate power for the fan. More precisely, the bad fan clutch doesn’t allow the fan to work at high efficiency. As a result, the fan may spin sometimes, but way slower than the average speed.

Moreover, the radiator fan clutch can become damaged or defective due to age or other external issues. Finally, it becomes clogged due to additional dirt and dust. 

Faulty Temperature Sensor

Before going deep in this discussion, you must first know what a temperature sensor does for an engine cooling system. To describe it simply, the main job of a temperature sensor is to measure the temperature of a 6.0 Powerstroke engine.

However, if the temperature sensor becomes defective, it can’t measure the actual heat of the engine. And, if this happens, the Engine Control Module or ECM of your vehicle can’t determine when to sound the radiator fan. 

For this, you will likely notice the radiator fan slipping on the 6.0 Powerstroke.

Damaged or Broken Radiator Fan

What if a radiator fan is damaged or broken? Well, this is not unfamiliar. The blade or blades of a fan may become damaged or broken; in this case, it can’t function properly or cause a slip. 

Furthermore, it may also happen that the electrical motor inside the radiator fan is damaged. 

Blown Fuse

A blown fuse is another possible cause of the Powerstroke 6.0 fan slipping. The fuse is connected to the motor of the cooling fan. If the fuse is blown from an access electrical short, it can cause the cooling fan motor not to work smoothly or sometimes unable to work.

Therefore, it makes a lot of sense that you will notice the issue of the radiator fan spinning due to the blown fuse. 

Broken Connection Wiring

Sometimes, the connection wiring of your 6.0 Powerstroke radiator fan may become damaged, broken, or worn out. Moreover, if this is the case, the radiator fan will malfunction, or you can consider it a cooling fan slipping. 

In the 6.0 Powerstroke, the radiator fan wiring harness is connected to the fan relay.  

Bad Radiator Fan Motor

How can you expect the radiator fan on your 6.0 Powerstroke to function smoothly if there is an issue with a bad radiator motor? Sometimes, the radiator motor can be burnt out or damaged. Due to this, the fan motor can’t work, and unfortunately, you will find the issue of the fan slipping. 

Furthermore, if you see the motor come on, but the fan is still slipping, the motor is not getting enough power.

How To Fix A 6.0 Powerstroke Fan Slipping? 

Once you know the possible reasons why you may notice the issue of the Powerstroke 6.0 radiator fan slipping, discussing the solution will now make much sense. All we will do here is solve the possible causes of the problem one after another.

1. Clean and Replace Fan Radiator Clutch

Checking the radiator fan on your 6.0 Powerstroke cooling system is something you should do in the troubleshooting task regarding fan slipping. A malfunctioning fan clutch doesn’t allow the radiator fan to move more freely.

Check whether there is any additional damage to the clutch. Sometimes, it may become burnt. So, you need to check this carefully too. Moreover, replacing the radiator clutch is always better than repairing it.

You should follow the steps below to replace the fan radiator clutch on your 6.0 Powerstroke diesel engine.

  • Step 1: Locate the radiator fan clutch at the front of the water pump on your 6.0 Powerstroke engine
  • Step 2: Now, remove the fan shroud.
  • Step 3: Remove the fan clutch.
  • Step 4: Clean the radiator fan clutch.
  • Step 5: Check the fan blades for additional damage.
  • Step 6: Install a new fan clutch.
  •  Step 7: Set up the radiator fan shroud.
  • Step 8: Check the radiator fan to see whether it spins smoothly.

Note: Though the above troubleshooting steps are for replacing the radiator fan clutch, you should also check the fan’s blades if it goes bad. You must replace the entire fan if you see broken fan blades. If cleaning the clogged radiator fan clutch works, it’s better off not to replace it.

Depending on the vehicle, you need to pay around $400-$500 to replace the fan clutch on your 6.0 Powerstroke. In addition, you need to add another $120-$140 as labor costs if you cannot do the task on your own.

Moreover, it’s better to go with the mechanic if you don’t have the necessary tools.

2. Replace Temperature Sensor

If the temperature sensor on your 6.0 Powerstroke radiator or cooling system goes bad, it can’t measure the temperature level of the coolant. In this way, it can directly impact the radiator or cooling fan to malfunction.

Wear and tear are the possible reason why the temperature sensor may fail. In this case, replacing the temperature sensor if it becomes defective is the better solution.

Now follow the steps below to replace the temperature sensor on 6.0 Powerstroke.

  • Step 1: Locate the temperature sensor mounted right down on the thermostat.
  •  Step 2: Disconnect the electrical connection wire from the temperature sensor.
  •  Step 3: Take a 21 mm wrench and lose the old temperature sensor.
  • Step 4: Install the new sensor by putting it in place.
  • Step 5: Use the wrench again to tighten the sensor.
  • Step 6: Plug the electrical connection wire again.

To replace the temperature sensor on your 6.0 Powerstroke, you must spend around $150-$200. Furthermore, going with the mechanic, in this case, will cost you around $80-$150.

3. Replace the Blown Fuse

In most cases, the issue with the radiator fan takes place due to the blown fuse. If this happens, replacing the blown fuse is better, as the task is super easy. You don’t need to hire a mechanic in this regard.

Let’s know what you need to know to remove or replace the blown fuse on your 6.0 Powerstroke.

  • Step 1: Locate the fuse box connected to the motor of the cooling fan under your vehicle hood.
  • Step 2: Withdraw the fuse box.
  • Step 3: Use a fuse puller to detach the blown fuse.
  • Step 4: Install a new fuse.

As we mentioned before, you don’t need to face a lot of hustles to replace the blown fuse; it will cost you around $10-$25.

4. Repair or Replace the Broken Connection Wiring Harness

Due to a broken or damaged wiring harness, the motor of the cooling fan can’t get adequate power to spin correctly. In this case, we will make it more likely to notice the radiator fan on your 6.0 Powerstroke slipping.

Therefore, the ultimate solution here is to check the wiring harness of the radiator fan. If there is no significant damage to the wiring harness, you should repair it using wiring tape. However, if they notice extreme damage to the wiring harness, it’s better to replace it.

5. Replace Bad Radiator Fan Motor

Among the most acute issues because you may notice the cooling fan on your 6.0 Powerstroke vehicle slipping due to a defective motor. The electric motor works behind the scene in rotating fan blades. However, because of being faulty, it can let the cooling fan run correctly.

So, the best solution here is to replace the bad radiator fan on your 6.0 Powerstroke.

  •  Step 1: Locate the radiator fan motor in front of the radiator.
  •  Step 2: Test for any power going to the fan from the motor.
  • Step 3: Remove the motor.
  • Step 4: Install a new radiator fan motor on your 6.0 Powerstroke.
  • Step 5: Check the fun and whether it moves accurately.

 Now, let’s know the replacement cost of the radiator fan motor. 6.0 Powerstroke radiator fan will cost you $150-$200. As the task is not so difficult, you can attempt to do it independently. However, going with the mechanic will cost you an extra $80-$90.

How To Prevent The 6.0 Powerstroke Fan from Slipping in The Future?

“Prevention is better than cure.” You are familiar with this old but logical saying. In terms of fan slipping on Powerstroke 6.0, there’s no exception. However, before facing the issue of the fan slipping and letting the engine overheat, you should take the initiative so that we can’t face the problem.

First, you must ensure the radiator fan’s clutch becomes good. You can never imagine the smooth spin of the fan in your engine cooling system with a bad fan clutch. 

Furthermore, whenever you know a particular cooling system component is causing a problem, you should repair it ASAP.

In addition, don’t try to keep your vehicle idle for a long time if you don’t need to. By doing so, you can reduce the issue of fan slipping to some extent. 

Besides, you need to ensure that the fan clutch is cleaned correctly. This is because a clogged fan clutch can’t help the fan more.

Besides, a radiator fan on 6.0 Powerstroke can last eight to ten years. So, if the radiator fan extends this period, you should replace it.  


We don’t want you to be confused about our discussed issue. That’s why our experts have picked some of the frequently asked questions by 6.0 Powerstroke owners like you. So now, let’s look at the questions and their answers. 

When Does My 6.0 Powerstroke Fan Slip?

Your 6.0 Powerstroke fan may slip if there is any issue with the radiator clutch. Moreover, when it needs to cool down the hot engine of your vehicle, the fan moves slowly or spins and causes harm to the engine by overheating. It can happen at any time due to some issues.

Can I Replace The Radiator Fan Clutch On My Own?

Replacing the radiator Fan clutch is not rocket science; you should do it and save labor costs. But the pre-condition is that you must have the expertise and essential tools. Otherwise, it’s better to go with the mechanic.

Where Is The Cooling Fan Motor On May 6.0 Powerstroke?

You will find the fan motor in front of the radiator. More precisely, inside the radiator fan on your 6.0 Powerstroke engine vehicle. The primary duty of the radiator fan motor is to assist the fan in functioning correctly; you will be more likely to see the engine overheating issue.

Final Words

Here’s what we have for you regarding the 6.0 Powerstroke fan slipping. So, this article will work as a guideline when you face the issue of cooling or a radiator fan slipping on your 6.0 Powerstroke. 

Don’t just think the fan slipping occurs due to the damage or the fan or fan blades. Other issues can come into play. 

It’s always better off checking the fan clutch in this case. If fixing issues with the fan clutch doesn’t solve the problem of the fan slipping, then you should move forward to fixing other issues. Never forget to check the components properly before repairing or replacing them.

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