How often to change a fuel filter on 6.7 Powerstroke

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No doubt, only through regular maintenance you can ensure a longer vehicle life. Regardless, you own a diesel engine vehicle or gasoline, the Average Use of the vehicle determines how often to go for maintenance.

Since 6.7 Powerstroke is a diesel engine monster, so it is highly recommended to change a fuel filter on 6.7 Powerstroke to make it run efficiently. According to the expert’s calculations, diesel engine vehicle requires more fuel filter changes than gasoline engines.

Even Ford has suggested changing the fuel filter on a 6.7 Powerstroke engine every 15,000 miles. Or you can go for changing the fuel filter during the third oil change. Your vehicle’s manual comes with all instructions to let you know when and how to go for changing the fuel filter.

In this piece, we will explain why it is essential to change the fuel filter and what signs indicate the failure of a fuel filter. We will also guide you on how to change a fuel filter on 6.7 Powerstroke.

The significance of a fuel filter

The fuel filter on 6.7 Powerstroke also works the same way as it does for other gasoline engine vehicles. It traps dirt, oxidation, and other pollutants into it. By doing so, it makes sure that no dirty fuel may enter into the fuel pump, fuel injectors, and engine. 

If it gets clogged, the engine pump has to work harder. The contaminated fuel will make damage the engine and its various other parts. 

So to avoid all this inconvenience and to save yourself from paying extra repair bills, don’t neglect changing your 6.7Powerstroke fuel filter by every 15, 000 miles.

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Signs that indicate a bad fuel filter

The following are the symptoms that can tell you if your 6.7 Powerstroke is having a poor fuel filter.

1. Random engine misfiring

With a clogged fuel filter, your vehicle will have poor fuel mileage. With low fuel pressure, the engine misfires.

There is also the possibility that check engine light will start appearing.

Once this is the case, your 6.7 powerstroke needs a trip to a mechanical shop.

2. Engine stalling

When your engine starts stalling frequently, you may need to check out if it is due to a clogged fuel filter.

With the higher amount of debris trapped into the fuel filter, you will encounter excessively stalling.

If this is the case being so, go for replacing the fuel filter immediately.

3. Bad fuel pump

If your 6.7 Powerstroke fuel pump gets damaged and you are uncertain why it has happened. Go for checking your vehicle’s fuel filter.

It also happens that fuel injectors will leak.

Above are three common symptoms that indicate the failure of a fuel filter. Other significant signs include:

  • Poor engine performance
  • Difficulty in starting the vehicle
  • Rough idling

Watch out for all these symptoms to determine if your 6.7 Powerstroke is having a bad fuel filter.

Once you will know that your 6.7 Powerstroke is troubling you because of a clogged fuel filter. The right time has come to address the issue.

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How to change fuel filter:

Go through our step-by-step guide on changing the fuel filter on 6.7Powerstroke:

Tools you will need

  • Gloves
  • Wrench
  • New fuel filter

Find the filter:

There are two filters in the 6.7 powerstroke engine. One at the bottom of the vehicle. And second on the top of the engine.

How to change the primary fuel filter on 6.7 Powerstroke

Find out the primary filter. It is somewhere alongside the driver’s frame rail.

Disconnect fluid sensor:

Disconnect the fluid sensor and drain all fluid into an empty jar.

This step is mandatory to ensure the safety of this component.

Once you are done with this, you can go for the next step.

Removal of filter’s plastic housing:

Use a 32 mm wrench to remove filter plastic housing. Within 5 or 6 turns, the filter housing and filter will come off.

Wipe out the plastic housing:

Use a clean piece of cloth to remove debris stuck into the filter housing.

Change the old O-ring:

Your new fuel filter has a new O shaped ring. Install it perfectly.

Replace the old filter with a new one:

Install the new filter and the cleaned filter housing.

Make sure the whole unit gets tighten.

Once you are done with the installation, reconnect the fluid sensor.

This is all for changing the main fuel filter on 6.7 Powerstroke.

How to change the secondary fuel filter

Detach the fuel lines:

Firstly, separate the two fuel lines found above the secondary fuel filter.

Remove the filter’s plastic housing:

The second step to go for is to turn the filter’s plastic housing counterclockwise. This is for removing the filter housing unit.

Change the new filter with the old one:

Once the old filter is removed from the filter housing, replace it with a new one.

Now reconnect the fuel lines.

Voila! The second fuel filter has also been changed.

Once you have replaced both fuel filter on 6.7 powerstroke, check for leaks if there is any.


Most motorists neglect for changing fuel filter regularly. They usually don’t know what harms a bad fuel filter can do to their engine.

But we hope, through this piece, you will have got an idea about the importance of changing the fuel filter on your 6.7 Powerstroke.

To enjoy a trouble-free ride and to avoid expensive engine repair bills, make sure that at every 15, 000 miles you introduce the fuel filter change on your 6.7 Powerstroke. Change a fuel filter on 6.7 powerstroke.

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