DPF, DOC & SCR Cleaning

Professional DPF, DOC & SCR Cleaning Services

Is your diesel engine losing power or stuck in "Limp Mode"? At Test Calibration, we provide advanced Bake and Clean services for all major exhaust after-treatment components. Instead of spending thousands on replacement parts, our restoration process returns your filters to near-factory flow specifications.

Why Professional Cleaning is Critical

Modern diesel engines rely on a complex filtration system to manage emissions. When these components become restricted by ash and soot, it creates excessive back-pressure that can lead to:

• Turbocharger Failure: Back-pressure forces exhaust gases back into the turbo, damaging seals and bearings.

• Reduced Fuel Economy: Your engine works harder to push exhaust through a clogged filter.

• Frequent Regens: A "full" filter triggers constant regeneration cycles, wasting fuel and stressing the engine.

Our "Bake & Clean" Restoration Process

We don't just "blow out" the dust. Our multi-stage process ensures a deep clean that standard on-vehicle regenerations cannot achieve:

• High-Temp Kiln Baking: We "bake" the units in a controlled environment to oxidize stubborn soot into loose ash.

• Pneumatic & Aqueous Cleaning: Using specialized equipment, we remove ash from the deepest cells of the filter.

• Flow & Weight Testing: We document the "before and after" air-flow and weight to verify a successful cleaning.

Components We Service

• DPF (Diesel Particulate Filter): The primary trap for soot and particulate matter.

• DOC (Diesel Oxidation Catalyst): The vital component that breaks down carbon monoxide.

• SCR (Selective Catalytic Reduction): The catalyst responsible for reducing harmful NOx emissions.

Don't wait for a total system shutdown. Regular maintenance of your DPF and SCR systems saves you thousands in repairs and keeps your fleet on the road.