A diesel particulate filter (DPF) plays a crucial role in reducing harmful emissions from diesel vehicles by capturing and storing exhaust soot—often referred to as "soot traps." However, since the DPF has a finite capacity, the trapped soot must periodically be cleared through a process called regeneration, where the filter "burns off" the buildup.

 If your DPF becomes clogged or a fault develops in the system, an orange warning light will typically illuminate on your dashboard. When this happens, it’s essential to address the issue promptly to maintain your vehicle’s performance and efficiency. At DPF Services, LLC, we specialize in all aspects of diesel particulate filter and diesel oxidation catalyst maintenance. Whether you need your existing filter professionally cleaned and restored or a brand-new, direct-fit replacement, we’ve got you covered.

 Our experienced technicians follow strict, industry-standard procedures to get you back on the road quickly, affordably, and without compromising the integrity of your filter or your vehicle’s performance. Let us help you keep your diesel vehicle running efficiently and reliably. Contact DPF Services, LLC today!

Once a DPF cleaning cycle is complete, every filter undergoes a rigorous testing process to confirm that it has been restored to its optimal filtration capacity. Upon successful completion of the testing, the filter is carefully secured, packaged, and prepared for shipment or delivery. All fully restored units are delivered to your facility within 24 hours* of testing completion. Additionally, a detailed work order outlining all services performed, including filter specifications, can be provided via email, fax, or included with the shipment.

 For DPFs that arrive with defects or require repairs to save the unit, a thorough evaluation is conducted on a case-by-case basis. Our skilled technicians at DPF Services, LLC offer repair services such as flange straightening, welding cracked flanges, and bung repairs. Repair costs are estimated individually for each unit. To streamline the process, we recommend contacting DPF Services, LLC prior to shipping a defective unit, allowing us to expedite the evaluation and provide accurate estimates.

Repairing and replacing of sensor fittings (bungs).

The purpose of this Standard Operating Procedure (SOP) is to clarify the parameters used in evaluating sensor bungs for repair or replacement. Initially, when a filter comes in with a request for bung repair / replacement, the following procedure is followed. The bung is visually examined for cracks, breakage, and thread damage. If cracked or broken, the bung is replaced.

If thread damage is evident, the bung is examined to see if sensor threads have galled in the bung. If so, then the galled metal is removed if possible and the bung is rethreaded with the appropriate tap. If threads are damaged and no galling is present, the bung is checked for usability by attempting to screw in a new sensor. If the new sensor will not turn in, the bung is rethreaded with the appropriate tap.

All bungs are checked for functionality using a new sensor to see if the threads need to be retapped before any work is done to ensure that the work being done is necessary. All bungs that are repaired will be designated with the letter R next to the bung. All bungs that are replaced will be designated with the letter W next to the bung.

All efforts are made to repair the bung before a full replacement is performed. The focus of this shop is always to do the best work and do only what is necessary to return the filter to full functioning status. All bungs that are replaced are done so with new bungs that we have manufactured exclusively for our shop. They are all designed to be more robust than industry standard and also more durable.

All parts that are removed from filter units are bagged, labeled with the customer identification, and returned to the customer with the filter unit.

Removing sensors from the filters before cleaning.

The purpose of this Standard Operating Procedure (SOP) is to clarify the parameters used in removing sensors that are left in filters so that they can be properly cleaned. Initially, when a filter comes in with a request for sensor removal, the following procedure is followed.

The sensor fitting is sprayed with PB Blaster penetrating oil by the employee picking it up so the oil has a chance to properly penetrate the threads. Every attempt is made to remove the sensor manually with minimal or no additional damage. If the sensor cannot be removed manually with the proprietary tooling that we use, then the wire is cut so that a pneumatic tool can be brought to bear on the sensor.

If the sensor is successfully removed, the bung is checked with a new sensor to ensure that no thread damage is present. If the new sensor does not turn in, then the bung is rethreaded with the appropriate tap. If the sensor cannot be removed or the sensor breaks off in the bung, then the bung is removed and replaced with a new one.

All bungs that are replaced are done so with new bungs that we have manufactured exclusively for our shop. They are all designed to be more robust than industry standard and also more durable. All efforts are made to repair the bung before a full replacement is performed. The focus of this shop is always to do the best work and do only what is necessary to return the filter to full functioning status.

All parts that are removed from filter units are bagged, labeled with the customer identification, and returned to the customer with the filter unit.