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Everything you need to know about DPF cleaning

Everything you need to know about DPF cleaning

It’s critical to understand diesel particulate filters and how they operate, whether you own a diesel car or want to work as a diesel mechanic.

Diesel particle filters are essential for the proper operation of diesel-fueled automobiles and trucks. Failure to keep these filters clean can have serious (and expensive) repercussions for the vehicle.

Follow along as we explain what diesel particulate filters are, how to spot a clogged filter, and how to regenerate them.

What Is a Diesel Particulate Filter?

A diesel particulate filter, or DPF, is an exhaust aftertreatment device that collects soot and ash particles. A DPF generally has a honeycomb-shaped substrate comprised of ceramic material.

Diesel particulate filters catch and store exhaust soot, which must be burnt off regularly to regenerate the filter and minimize emissions from diesel cars. The regeneration process burns away any extra soot that has accumulated in the filter, preventing dangerous exhaust emissions and the black smoke that is typically seen when diesel engines accelerate.

To fulfill the EPA’s 2007 pollution limits, engine manufacturers utilize DPFs to capture particulate matter.

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What Are the Symptoms of a Blocked Diesel Particulate Filter?

Short trips at moderate speeds are frequently the source of clogged diesel particle filters. Vehicles traveling at low speeds on short trips are unable to fulfill the filter’s self-cleaning standards.

Poor maintenance can also cause DPF failure. A diesel particulate filter’s lifetime varies depending on the use. The Cummins ISX15 engine’s filter, for example, has a cleaning frequency of 400,000 to 600,000 miles, albeit it will need to regenerate before reaching that figure.

If DPFs are not properly maintained, they may fail sooner. Filter blockage can also be caused by using the improper type of oil, making performance changes, using bad-quality gasoline, or driving the automobile on a low fuel level repeatedly.

So, how do you know whether your filter is working? An orange light will display on your dashboard if the filter becomes blocked or if the system experiences an issue. This light looks different depending on the manufacturer, however it usually looks like the image below. If this light illuminates, your filter is most likely clogged, and you may need to regenerate it.

Cleanings are necessary in the same way that there are two sorts of particles being filtered. The soot is cleaned by converting carbon to carbon dioxide, and the ash is removed by removing the filter and cleaning it with compressed air in a machine.

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