Are you considering the purchase of a vehicle with a diesel engine? Modern diesel engine technology has come a long way in the last few decades and the DPF is a major part of that. For this reason, you may be wondering if your DPF is covered under warranty. If an issue occurs as a result of a DPF failure, please note that the repair work may not be covered under a warranty if proper DPF maintenance guidelines have not been adhered to.

Intro If you have a GM car from 1980 to 1995 then there is a major chance that you have the OBD1 connector (ALDL). OBD1 connectors are special connectors that apply to Pontiac, Oldsmobile, Chevrolet, GMC, Cadillac, and Buick vehicles. While these connectors are older, the great thing about them is that you can easily read these codes without any diagnostic tools. So, while there are many special diagnostic tools that can read these connector codes, using a diagnostic tool is not entirely necessary.

Background Diesel particulate filters (DPF) are installed in many modern vehicles to reduce harmful emissions as well as eliminate soot and ash. However, despite the fact that the vehicle should clean the DPF while you are driving, it is likely that the DPF may build up so much soot and ash over time that you need to have it removed and professionally cleaned. If you want to clean your DPF filter yourself, the first step is to remove the DPF.

Intro EGR stands for exhaust gas recirculation and is used in gasoline and diesel engines. In internal combustion engines, EGR is a technique used to reduce nitrogen oxide (NOx) emissions. It works by recirculating a portion of an engine’s exhaust gas back to the engine’s intake. This process keeps the engine cool while maintaining good fuel efficiency. Of course, it also reduces emissions - thereby keeping in tandem with the law.

DPF (Diesel Particulate Filters) are specially designed to filter or trap diesel exhaust particles or soot. As you can surely imagine, over time the filter will pick up a lot of waste particles and will need to be emptied to maintain performance. The process by which the DPF is cleaned or emptied is referred to as regeneration. In other words, DPF regeneration is the process of cleanly burning off or removing the excess soot deposited in a DPF filter or clearing a blocked DPF filter.

Understanding the need for better emissions control while providing maximum performance, Navistar International created the Maxxforce 13 engine. With impressive responsiveness, excellent fuel economy, and a smoothly performing engine, the Maxxforce 13 engines had promised to give truckers many happy years on the road. Unfortunately, this was not the case as many problems arose with the EGR which led many truckers to delete the EGR which then led to further problems.