A clogged diesel particulate filter doesn’t just throw a warning light—it can throw off your whole operation. At Axle Spindle Repair, our mobile DPF Cleaner service brings professional diagnostics, cleaning, and replacement directly to your yard, jobsite, or fleet yard anywhere in the GTA and surrounding areas.
Whether you are dealing with poor fuel economy, reduced power, or a failed DPF regeneration cycle, our team restores your emissions system quickly and reliably with on-site service.
The DPF traps harmful soot from your exhaust to keep emissions low and your engine compliant. But when soot builds up faster than regeneration can burn it off, performance suffers—fuel economy drops, power lags, and faults stack up. Whether you’re running a fleet or a single heavy-duty unit, regular DPF cleaning keeps airflow steady, regen cycles working, and replacement costs off your back.
DPF (Diesel Particulate Filter) Services in GTA and Beyond
››› DPF Diagnostics
We use advanced tools to check pressure, regeneration cycles and soot load. This will tell us if you need cleaning, repair or full DPF replacement.
››› Filter Removal & Inspection
The DPF is removed from the exhaust system and visually inspected for cracks, blockages or heat damage. This step ensures no structural damage before cleaning.
››› Professional DPF Cleaning
We do a full DPF service, air blasting and solvent treating to remove carbon and ash from deep inside the filter walls.
››› Baking & Flow Testing
Baking and flow testing are essential DPF Cleaner steps in heavy-duty truck emissions maintenance, burning off stubborn soot at high heat and verifying airflow to ensure the filter meets manufacturer specs before reinstallation.
››› Reinstallation & Reset
After cleaning, the filter is reinstalled and the onboard computer is reset. This clears any fault codes and restores the system to normal operation.
Signs You Need DPF Service for Your Truck
Common signs your semi truck has a clogged DPF.
Loss of Power or Slow Acceleration
Clogged DPF restricts exhaust flow and performance.
Poor Fuel Economy
Your truck will burn more fuel to compensate for backpressure in the exhaust system.
Check Engine, DPF, or Glow Plug Light
Your dashboard warning light means the exhaust filter is full of soot or ash.
Frequent DPF Regen Cycles
If regen occurs frequently, it is a service warning, meaning your filter is nearly complete and needs cleaning.
Exhaust Smoke
If black smoke is pouring out of the stack, your DPF is not functioning properly.
Preventive DPF Maintenance Tips For Your Truck
Check Backpressure
If your gauge creeps above normal (around 2 kPa over baseline), your DPF’s filling up with soot—get it looked at before your truck goes into limp mode.
Highway Drives at a Consistent Speed
Aim for at least a 60 km/h cruise for 20-30 minutes to burn off soot. Short city runs won’t cut it and will leave your filter clogged.
Choose The Right Engine Oil and Monitor Fuel
Run ultra-low-sulfur diesel and low-ash, OEM-approved engine oil to avoid soot or ash buildup. Keep fuel above a quarter tank for proper regen.
Check Sensor Health
Make sure the temp and differential-pressure sensors before and after the filter are clean and reading right; insufficient data can stop regenerations or hide problems.
Schedule Professional Ash Cleaning
Every 100 000 km (or sooner if you’re pushing hard), pull the DPF for a proper ash clean or swap. Keep service logs so you know when it’s time for a fresh unit.
