6.7 Powerstroke DPF Delete Problems – Is Removing The Filter Worth It?

Deleting the DPF of your 6.7 Powerstroke may result in difficulties starting your vehicle. And you may experience losing engine power when you don’t use the correct tune. Thus, your vehicle may release higher volumes of particulate matter into the atmosphere.

Also, you may have to deal with various ECU-related problems. In addition, deleting the DPF can void your engine’s warranty.

Want to know more about the 6.7 Powerstroke DPF delete problems? Continue reading.

Common Problems with 6.7 Powerstroke DPF Delete & Solutions Table

Here is a quick summary of the 6.7 Powerstroke DPF delete issues and how to fix them.

No.ProblemsPossible Solutions
1No Power and Difficulty in Starting● Use a custom-made tune with an emission or DPF-off option to remap the engine
2High Particulate Matter in the Air● Proper tuning
● Ensure smoke density does not exceed 20%
3Failing Emission Tests● Disable all trouble codes with the best tune
4Voids the Warranty● Delete the DPF system after the warranty period has expired
5ECU-Related Issues● Reprogram the ECU before removing the DPF

What is 6.7 Powerstroke DPF Delete?

DPF, or diesel particulate filter, is part of the 6.7 Powerstroke exhaust system. It is designed to remove exhaust fumes from your truck’s engine and trap soot particles.

6.7 Powerstroke DPF delete involves removing the system and installing a DPF delete kit comprising one-piece exhaust pipes. And after deleting the DPF, you must reprogram the engine control unit (ECU) to work without the part. This involves using a tuner to configure engine codes.

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Common 6.7 Powerstroke DPF Delete Problems

Removing your 6.7 Powerstroke diesel particulate filter may result in several problems, such as:

1. Difficulty Starting or No Power

Your 6.7 Powerstroke may fail to start after deleting the DPF and installing the tune. Sometimes, your truck will beep with the display reading ‘stop safely’ trouble code.

In some cases, your engine will rev up just fine in neutral, but when you try to drive the truck, there is no power.

Typically, this happens because of the tuner not recognizing your 6.7 Powerstroke DPF delete. It could also be because of using a non-delete tune.

Possible Solution:

The best solution would be to put the filter back if you still have it. If not, you could get a new filter. After that, reset the tune back to stock. Next, using a custom tune for DPF delete, repeat the delete process.

2. Increased Particulate Matter in the Air or Black Smoke

The DPF is designed to capture diesel particulates, preventing them from being released into the air. Compared to non-DPF engines, this system can reduce emissions by up to 80%.

So, when you delete your 6.7 Powerstroke DPF, this may result in an increased volume of particulate matter in the atmosphere.

Possible Solution:

With proper tuning, you don’t have to worry about the particulate matter being released into the air increasing. This is because the best tunes can help reduce the smoke capacity to 20%, which is not noticeable.

3. Failing Emission Tests

Currently, there are government regulations on emissions coming from vehicles. The primary role of the 6.7 Powerstroke DPF is to minimize any harmful emissions to the environment.

So, similar to the 6.7 Powerstroke EGR delete problems, you will fail the emission tests when you delete the DPF. As a result, you will be fined and asked to service or repair your vehicle before renewing your registration.

Possible Solution:

With proper tuning, you can pass the tests because the tune helps disable all error codes on your vehicle’s ECU.

4. Voids Warranty

The 6.7 Powerstroke DPF is covered by a two-year or 24,000 miles warranty under Ford’s emissions warranty. So, when you delete this system, it can void this warranty. This is because you will be altering the stock exhaust pipes.

However, what really nullifies the warranty are the tunes you install to disable the engine codes.

Possible Solution:

It would be best to consider deleting the 6.7 Powerstroke DPF after your truck’s expired warranty.

5. ECU-Related Problems

Before deleting your 6.7 Powerstroke DPF, you must remap the engine. Simply, you must reprogram your vehicle’s ECU so it can forget that it ever had the DPF installed in the exhaust system.

If you don’t remap the ECU and delete the DPF, you will experience ECU-related problems, such as:

  • Check engine light illuminating
  • Engine turning off
  • Possible loss of spark
  • Overheating ECU
  • Intermittent starting issues

Possible Solution:

Make sure to remap your vehicle’s ECU before deleting the DPF on your 6.7 Powerstroke diesel engine. This suggested taking help from a professional mechanic or Ford dealer.

Should You Delete Your DPF of 6.7 Powerstroke?

Looking at the different 6.7 Powerstroke DPF delete problems, you may want to know whether it is worth removing the filter. Read on some benefits of deleting DPF to find out the logic for deleting it:

● No More Blockage

As the DPF clears particulate matter and soots out of the exhaust fumes, it also collects them. This makes it highly prone to blockage, leading to expensive replacement costs.

Removing the DPF system ensures no more blockage, saving you money for replacements.

● Improved MPG

DPF must regenerate to ensure it’s operating optimally. During the regeneration process, your vehicle tends to consume more fuel.

So, deleting the DPF may help improve your 6.7 Powerstroke fuel mileage by small margins since there is no regeneration.

● Decreased Maintenance Costs

The 6.7 Powerstroke DPF is known to clog up fast with soot. Therefore, you must have the system checked and cleaned frequently. But when you install a DPF delete kit, you will no longer have to worry about the DPF blocking.

● Additional Horsepower

A DPF delete kit may also help optimize your 6.7 Powerstroke’s performance, leading to increased horsepower. This is because removing the DPF allows for better airflow.


In this section, we will respond to commonly asked queries regarding the 6.7 Powerstroke DPF delete issues.

Does DPF delete improve 6.7 Powerstroke engine performance?

Yes, because when the DPF is clogged, it reduces the engine’s performance and overall power. However, deleting this system prevents blockage, helping improve your 6.7 Powerstroke engine’s horsepower.

Can you do 6.7 Powerstroke DPF delete yourself?

Yes, if you are competent enough to work under a car and know how to weld professionally. You just need the correct delete kit and tuner. But for the best results, it is recommended to have a professional tuner do the job.

Does deleting 6.7 Powerstroke DPF cause resale value problems?

Yes. This is especially true if you plan to sell or trade-in your diesel truck to a dealer. The reason being dealers are technically not allowed to sell deleted trucks. However, this is not the case if you sell it privately.

What is the cost of DPF Delete on your 6.7L Powerstroke?

The price of the delete kit ranges from $250 to $750. This price varies based on whether you want the DPF pipe only or a complete downpipe-back exhaust system. Meanwhile, tunes cost around $750. So, you could spend between $1000 and $1500 on 6.7L Powerstroke DPF delete.

Key Takeaways:

Deleting your 6.7 Powerstroke DPF may result in several problems, including engine power loss or difficulty starting. Other 6.7 Powerstroke DPF delete problems may include increased black smoke and failed emission tests. Aside from these, there are some benefits too.

Below are additional takeaways for you:

  • Despite the various problems, deleting your 6.7 Powerstroke DPF has several benefits, like better fuel mileage.
  • Your vehicle may enter into limp mode after removing the DPF, leading to difficulty starting if you fail to tune the ECU.
  • ECU-related problems are common once you delete your 6.7 Powerstroke DPF and fail to reprogram the ECU beforehand.

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