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Can clogged DPF cause rough idle?

Can clogged DPF cause rough idle?

A combination of rough idling, poor performance and reduced fuel economy is a sure-fire sign that your engine isn’t running as the manufacturer intended. A DPF warning light meanwhile, is the easiest way to tell that your filter has become blocked and may soon cause issues.

What happens if you drive with a blocked DPF?

If you ignore the DPF light and continue driving, the build-up of soot will soon reach a point whereby your car has to enter ‘limp-home’ mode in order to prevent any damage to the engine. However, it’s not a guaranteed fix, especially if the filter itself has become damaged or other damage has been done to the engine.

What happens when your DPF filter is blocked?

Your DPF filter is designed to conduct exhaust fumes out of the car’s engine, so when it is blocked, these fumes cannot leave the engine as quickly. This stops the engine from working to its full capacity and will invariably reduce your fuel efficiency.

What’s the best way to clean a blocked DPF?

This powerful cleaner removes stubborn dirt and carbon deposits from the EGR valve, turbo, injectors, pipes, inlet and outlet valves and the diesel particulate filter (DPF). This product is unique on the market due to the high concentration of active substances and the versatile effect.

How can I tell if my DPF is clogged?

One signal to look for is your cooling fans running at a higher capacity than normal, or the sound of your engine may change note. Sometimes, a hot and pungent smell can also start coming from your engine as the soot is being burned away. Your stop / start function may also deactivate.

Why is my diesel particulate filter clogged up?

Similar to EGR problems, the DPF can become clogged up from city driving where the car does not get up to temperature. The whole reason the Diesel Particulate Filter came along was to clean up the diesel car image (Euro 5 Emissions, 2009).

Can a DPF cleaning be combined with scheduled service?

The DPF cleaning can also be combined with other scheduled service work to further minimize downtime. During a dealer cleaning, a baseline reading is taken of the restriction of airflow through the filter using the air flow test bench. Most OEM filters have a baseline of what is considered acceptable air flow.

Can a diesel particulate filter get clogged?

This cutaway reveals the insides of a diesel particulate filter and shows how the small tubes through which the exhaust passes could get clogged with soot. Photo by Les Smart. We all know by now that the mandated 2007 and 2010 emissions standard rules radically changed on-highway diesel-powered trucks and tractors.

How does the Diesel Particulate Filter ( DPF ) work?

The sole intention of the DPF is to catch and retain particulates, or “soot” in layman’s language. The DPF requires periodic soot removal cycles, termed “regeneration” or “regen” for short. These regens burn the accumulated soot out of the DPF at extremely high temperatures. Most of these “passive” regens occur almost unnoticed at highway speeds.

What kind of machine is used to clean DPFs?

This FSX Pneumatic Cleaning Machine is used by dealers to clean DPFs. The thermal cleaner on the far left is connected to the dust collector, which is connected to the pneumatic cleaner. The air flow test bench sits on the far right. The DPF must be removed from the truck to use this system.

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Ruth Doyle