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 Precision Diagnostics Service

Diesel Repair Garage

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DPF Repair

DPF Repair Services

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Roadside Assistance
 Family Owned

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DPF Repair

Almost all trucks on the road comply with the strict government mandate of the tier-4 emission standard.  which means that all trucks since 2009 must have a particulate trap filter and a (NOx) reduction system installed. This works excellent in reducing harmful emissions and particulate matter in the atmosphere.

However, for the owner of the truck, this emission technology can become a nightmare very quickly with expensive repair bills, long down time, and incomplete repairs. It can become very frustrating when the flashing DPF light comes on just miles after a repair has been done. Addressing that check engine light quickly can reduce the cost by eliminating the root cause before more damage is done to the system.

Here at Precision Diagnostics Services, we have been diagnosing and repairing after treatment system faults since 2009, so we definitely know how to fix those complex systems correctly and efficiently.

DPF Cleaning

After treatment filters require maintenance just like every other part of the truck. Having your DPF and DOC filters cleaned routinely allows your engine to run smoothly and efficiently, keeping the MPG up along with eliminating the costly and unnecessary repair bills and downtime.

Forced Filter Regeneration

At Precision Diagnostics Services, we understand that sometimes time is not available for an extensive after treatment repair. We also have top of the line software that helps force the engine into a regeneration state and clean the filter allowing you to complete your run and make the repairs later.

DEF/SCR Maintenance and Repair

Selective Catalytic Reduction, also known as SCR, is the final step in reducing NOx emissions from your diesel engine. This process uses purified water and urea (also known as DEF) and is injected into the hot exhaust stream through a dosing valve. The DEF then reacts with the reductant catalyst filter producing clean emissions.  When the DEF becomes contaminated or the dosing valve gets clogged, that is when the problems arise.

Through the years, we at Precision Diagnostics Services, have learned that performing preventative maintenance procedures on the DEF/SCR system will keep filter life at its max and repair bills low.
DPF Repair Available
Call (540) 812-4644
"I've been using Precision Diagnostics Services Inc for years. This is my go-to shop. I could go to the big boys or to the dealer but I have learned what to expect. I expect great service at a great price. The dealer and the big boys have let me down but Precision diagnostics Services Inc come to each time."

Frederick Barnes, Culpeper, VA
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