A DPF gets clogged when it collects too much soot and ash from the exhaust. Here’s how it happens:
- Soot Buildup: Diesel engines produce tiny particles of soot when they burn fuel. The DPF traps these particles to keep them from polluting the air.
- Driving Conditions: Short trips and city driving can make the DPF clog faster because the engine doesn’t get hot enough to burn off the soot.
- Ash Accumulation: Over time, small amounts of oil and additives in the fuel can leave behind ash. This ash doesn’t burn away and gradually builds up in the DPF.
- Lack of Regeneration: DPFs have a process called regeneration where high heat burns off the soot. If the regeneration process doesn’t happen often enough, the soot can build up and clog the filter.
When the DPF gets too clogged, it can block the exhaust flow, causing problems for the engine. That’s why it’s important to clean or restore the DPF regularly.