The first Cummins ISX engines turn 22 this year. Launched as a replacement to the N14, the Cummins ISX diesel engine was developed with a new fuel system called an “Interact System,” hence the “IS” in the name.
Later iterations of the ISX featured an advanced fuel injection system as well as updates with respect to emissions technology.
ISX engines, like other modern diesel engines, contain a component known as a DPF, or diesel particulate filter, which removes ash and regenerates soot particles, improving engine performance and reducing emissions.
These are some of the more common questions, answered.
How Long Do Cummins DPF Filters Usually Last?
That depends on engine load, oil consumption, and other factors, but when properly installed and maintained, a Cummins ISX DPF filter can last the full lifespan of the engine.
With that said, that estimate falls around 5 to 10 years or 10,000 service hours, give or take.
However, if you do not properly maintain and clean your DPF, it will not last the full lifespan of the vehicle/engine, will become clogged with ash, and will need to be replaced.
How Do I Know If My DPF Is Blocked?
There are several symptoms that can tip you off to the possibility that your DPF is blocked.
The most obvious is the DPF warning light, an indicator on your dashboard that will illuminate whenever there are performance issues with the DPF.
Others are low engine power/performance, black smoke issuing from the exhaust, a smell of diesel in the air or cabin, or chronically diminished fuel economy.
How Do I Maintain a Cummins ISX DPF Filter?
The best way to maintain a Cummins ISX DPF filter is to avoid low engine loads for prolonged periods of time.
Low engine loads prevent the diesel exhaust aftertreatment system (of which the DPF is a part) from reaching the temperatures necessary to regenerate the soot it captures.
Regeneration, however, only clears soot from the DPF. Over time, it will become clogged with ash and will need to be professionally cleaned.
Does a Blocked DPF Filter Damage the Engine?
Driving with a blocked DPF filter can cause serious damage to your engine. It will cause your engine to overwork and will result in reduced fuel economy and diminished engine performance.
In addition to damaging the engine, driving with a blocked DPF filter is a violation of emissions standards and regulations.
Can a Blocked DPF Clear Itself?
If it is blocked with ash, no, it will need to be professionally cleaned.
However, if it is blocked with soot, you may be able to clear the DPF by completing an active regeneration cycle by running the engine at high loads for an extended period of time. For instance, you can take the truck on the road and drive for at least 10 minutes at 40 MPH or higher – that should help clear the filter.
If the warning light stays on, you should have the problem diagnosed by a professional.
Where Can You Get a Replacement Cummins ISX DPF Filter?
Whether you’re looking for a replacement Cummins ISX DPF filter or simply need professional DPF filter cleaning services, visit Filter Service and Supply via the previous link.
They carry American-made Skyline Emissions DPF filters for Cummins engines that meet or exceed OEM standards, including DPF filters for the ISX. They also offer professional DPF filter cleaning services.
For more information, visit their website or contact them at 760-355-8900.
