Modern diesel vehicles come equipped with a particle filter designed to reduce environmental pollution and particulate emissions. However, over time and mileage, these filters inevitably get blocked up with soot. Don’t pay inflated service fees just yet! With inexpensive and readily available products, you can easily restore particle filter operation with this simple at-home cleaning process.
Understanding Diesel Particle Filter Function
Diesel particle filters (DPF) capture and store exhaust soot to prevent its release into the atmosphere. They work via catalytically activated channels that grab carbon particles as exhaust gases pass from the engine. Unfortunately, trapped particles eventually overload the DPF – restricting flow until regeneration occurs via very high heat burn-off. Cleaning helps remove this buildup.
When to Clean Your Diesel Particle Filter
Signs your DPF needs cleaning include:
- Decreased MPG and power
- Excess exhaust smoke at idle
- Illuminated engine management warning lights
Ideally, clean your particle filter every 60-80k miles based on usage severity and operating conditions to avoid clogs. Don’t wait for warning lights!
Items Needed for At-Home Particle Filter Cleaning
With these affordable shop-available items, you can tackle particle filter cleaning in under 2 hours yourself:
- PDF cleaning spray solvents
- High-pressure compressed air source
- Funnel and fluid containers
- Protective eyewear/gloves
- Collection trays Optional helpful tools: pneumatic air nozzle for deepest cleaning.
Safely Accessing the Diesel Particle Filter
DPF units mount between the turbo outlet and muffler underside, requiring some undercar disassembly for access. Always lift on secure jack stands! Once located, carefully detach clamps securing the DPF section using proper tools to avoid unit dropping. Never work under an unsupported load.
Stage 1 – Manual Surface Agitation & Rinsing
Start by generously spraying cleaning solvent over the entire unit exterior plus inlet/outlet pipes. Allow several minutes of penetration time before manually wiping with cloths. Dislodge obvious surface debris using a stiff parts brush. Then rinse with water to prevent pushing grime deeper inside. Inspect for remaining stuck particles.
Stage 2 – Compressed Air Blast Cleaning
Now utilize compressed air for deep internal cleansing. Steadily blast air starting at the inlet side to backflush entirely through the outlet pipe. Continually reposition the DPF unit to hit all angles, forcing trapped particles into external collection trays. After 1-2 minutes of steady air pressure application, redirect airflow entering the outlet side. Repeat the blasting process working in the reverse direction.
Final External Rinse, Inspection & Reassembly
Rinse once more with water to completely flush solvents and debris. Visually inspect internals through openings to ensure passages are clear. Allow maximum drying time before reinstalling using new gaskets for leak prevention. Reattach all clamps, supports, and peripheral tubing then lower/torque properly. Start the engine and check for any exhaust leaks, smells, or noises suggesting problems.
Maintaining Clean Particle Filter Operation
Prevent rapid recontamination by:
- Using only ultra-low sulfur diesel fuels
- Keeping air filters in good condition
- Practicing efficient driving habits Additionally consider adding a fuel-borne catalyst to long-term aid particle filter health.
Wrapping Up
Skillful DIYers can easily clean diesel particle filters at home between professional servicing, saving considerable money. Proactively maintain your DPF system – don’t wait for warning lights indicating clogs! Employ compressed air blasting and solvent rinses for removing trapped particles keeping exhaust flowing freely.
