How to Clean a DPF Filter: A Step by Step Guide

Introduction

A Diesel Particulate Filter (DPF) reduces emissions by capturing soot and other particulates from diesel exhaust systems. However, these filters can become clogged over time, leading to reduced engine performance and increased fuel consumption. Cleaning your DPF filter is essential to keep your truck running efficiently. In this post, we’ll explore how to clean a DPF filter, why it matters, and where you can find DPF cleaning near you.

What is a DPF Filter?

A DPF filter is designed to trap soot particles from the exhaust to reduce emissions. Over time, the accumulated soot and ash must be removed to prevent blockages. Failure to clean the filter can trigger warning lights on your dashboard, lead to limp mode, and ultimately damage the engine.

How to Tell if Your DPF Needs Cleaning

Some signs that your DPF filter requires cleaning include:

• A decrease in engine performance
• Increased fuel consumption
• DPF warning light on the dashboard
• Trouble accelerating
• Vehicle going into limp mode

Methods to Clean a DPF Filter

Passive Regeneration

• Occurs automatically during high-speed driving when the exhaust temperature is high enough to burn off soot.
• Solution: Take your vehicle on a long drive (at least 20-30 minutes) on the highway at higher RPMs to clear minor blockages.

Active Regeneration

• This method is triggered by the vehicle’s ECU when soot levels exceed a threshold. Fuel is injected to raise the exhaust temperature and burn off soot.
• Keep an eye on your dashboard during regeneration. Avoid stopping the vehicle mid-process to ensure complete cleaning.

Manual/Forced Regeneration

• A mechanic uses specialized diagnostic tools to manually trigger the regeneration process.
• This method is often necessary if passive or active regeneration fails to clear blockages.

To manually do a force regen, you will need some type of software. We high recommend truck owners to explore OTR Performance Diagnostic to be able to perform a force regen. Don't forget to use our exclusive coupon code "road3333" to save more!!

Professional DPF Cleaning Service

• If your filter is clogged with ash (which doesn’t burn off), it may need to be removed and cleaned professionally.
• Look for DPF cleaning near me or DPF filter cleaning near me on Google to find a specialized service center.

How to Clean a DPF Filter at Home

Cleaning DPF filter at home isn't recommended. However, some people attempt to use pressurized warm/hot water to clean the inlet side of the DPF filter.  Even though the soot on the inlet side of the DPF surface can be cleaned up, the ash and soot trapped inside the DPF filter vessels will not be broken down. We did a air restriction test after the cleaning with this "home cleaning" method, and the air restriction barely changed. In conclusion, save the headache, and seek a professional DPF filter cleaning facility near you to get the DPF filter tested and cleaned professionally. 

Here is a video to show you 

Why Pressure Washing Your DPF is a Costly Mistake: A Technician's Insight 

When to Seek Professional Help

While at-home cleaning methods work for minor blockages on the DPF filter surface, professional services are needed for heavily clogged filters. Specialists use high-pressure air cleaning with high-temperature baking to restore your DPF to optimal condition.

Search for DPF cleaning near me or DPF filter cleaning near me to locate nearby service providers. Most professional cleaning services can remove up to 98% of ash buildup, extending the life of your filter.

If you are in northeast Ohio area, Diesel Emissions Specialists is your best choice for DPF testing and DPF cleaning. 

How Often Should You Clean Your DPF Filter?

The frequency of DPF cleaning depends on your driving habits. Long highway drives reduce the need for frequent cleanings, but city driving with frequent stops and starts can lead to quicker clogging. On average, it's recommended to do a parked regeneration every 1-2 weeks, and do a DPF filter cleaning every 100,000 to 150,000 miles.

It is always recommended to clean your DOC along with your DPF filter when you get a professional DPF filter cleaning service. 

Conclusion

Regular DPF filter cleaning is essential to maintain engine performance and prevent costly repairs. Whether you opt for passive regeneration, at-home cleaning, or a professional service, keeping your filter clean ensures smoother driving and improved fuel efficiency. For severe blockages, don't hesitate to search for DPF filter cleaning near me to get expert help.

If your vehicle needs professional care, explore local options by searching DPF cleaning near me to find trusted mechanics who can restore your filter's performance.

Keep your DPF filter in top condition, and you’ll enjoy better mileage, fewer emissions, and a longer engine life!

If your DPF filter is cracked, don't forget to use DPFDiscounter.com to purchase the high-quality DPF filters.