WHAT IS A DPF SYSTEM? HOW IT WORKS, SIGNS OF BLOCKAGE & WHY YOUR DIESEL DEPENDS ON IT.
- Reflow Solutions
- Aug 15
- 3 min read
If you own or manage diesel vehicles in Vancouver or the Lower Mainland, understanding your DPF system is essential, not optional. At Reflow Solutions in Port Coquitlam, we see firsthand how a well-maintained DPF (Diesel Particulate Filter) can extend the life of your diesel engine, improve fuel efficiency, and reduce costly downtime.
So, what exactly is a DPF system, and why should you care?
WHAT IS A DPF SYSTEM?
A DPF, or Diesel Particulate Filter, is a vital emissions control device installed in the exhaust system of most modern diesel vehicles. Its main job? To capture and store soot (particulate matter) produced during diesel combustion – before it exits the tailpipe.
Diesel engines are powerful, but they produce more soot than gasoline engines. Without a functioning DPF, that soot would be released into the atmosphere, contributing to harmful air pollution. For businesses operating in and around Metro Vancouver, staying compliant with environmental regulations isn’t just responsible, it’s legally required.
HOW DOES A DPF SYSTEM WORK?
The DPF system traps soot and ash in a ceramic honeycomb structure. But since the filter can only hold so much, it must periodically undergo a process called regeneration to burn off the accumulated soot and restore performance.
There are two main types of regeneration:
Passive Regeneration
This occurs naturally when the exhaust temperature is high enough (typically during highway driving). The heat burns off soot without any driver intervention.
Active Regeneration
When driving conditions don't allow for passive regen, like during frequent idling or short urban trips, your vehicle will initiate an active regeneration. This increases exhaust temperature through post-injection of fuel, helping burn off the soot manually.
If neither type of regeneration is effective, your DPF becomes clogged.
SYMPTOMS OF A BLOCKED DPF FILTER
A clogged DPF can lead to a host of problems, and ignoring it can cost you.
Here are the most common signs:
Warning lights on the dash (DPF, check engine, or limp mode)
Loss of power or reduced acceleration
Increased fuel consumption
Poor engine performance
Exhaust smells stronger or unusual
Frequent regeneration cycles
If you notice any of these signs, it’s time to get your DPF checked—fast.
WHY MAINTAINING YOUR DPF SYSTEM MATTERS
A clean and functional DPF system helps:
Reduce harmful emissions
Improve fuel economy
Maintain engine health
Avoid breakdowns and costly repairs
Extend the lifespan of your vehicle
For fleet managers and diesel vehicle owners in Vancouver and surrounding areas, a blocked DPF isn’t just an inconvenience, it’s a risk to your bottom line.
FREQUENTLY ASKED QUESTIONS ABOUT DPF SYSTEMS
How often should I clean my DPF filter?
Typically every 150,000 to 200,000 kilometers, but more often if you mostly drive in the city.
What happens if I ignore a blocked DPF?
It can cause engine damage, poor performance, and costly repairs.
Can I clean the DPF myself?
No, professional cleaning with special equipment is recommended.
What’s the difference between active and passive regeneration?
Passive happens naturally at high exhaust temps; active is triggered by your vehicle when needed.
Where can I get my DPF cleaned near Vancouver?
At Reflow Solutions in Port Coquitlam, call (604) 474-4388 or email info@reflowsolutions.ca.
GET BACK ON THE ROAD, FAST.
At Reflow Solutions, we specialize in DPF cleaning. Our Port Coquitlam-based team offers overnight Bake & Clean service and fast turnaround times, because we know every minute your vehicle is down costs you money.
DON’T WAIT FOR YOUR DPF TO FAIL.
Call Reflow Solutions at (604) 474-4388, email us at info@reflowsolutions.ca, or stop by our Port Coquitlam location to schedule your DPF service today. We’ll get you back on the road – fast.
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