Robert McDonald, Author at UnderhoodService
Duramax 6.6L Turbocharger Replacement

No matter the symptoms or damaged parts, the root cause of the failure must be diagnosed and resolved.

Diesel Particulate Filters: Regeneration

The increased use of EGR valves has led to a bigger problem with soot. So, in order to trap the soot, the government has mandated that all trucks built after Jan. 1, 2007, have a diesel particulate filter (DPF) and a catalytic converter. In simple terms, the DPF is a huge screen that traps the soot coming from the engine. This filter looks like a rocket shell underneath newer trucks. The DPF has temperature sensors and pressure tubes used by the PCM to help in determining when the DPF screen is full. When the DPF needs cleaning it undergoes what is called “regeneration.”

Diesel Injection Components: Coming To Terms With The Common Rail Diesel Injection System Is Not An Easy Task

For some time now, most of the development in diesel technology has been aimed toward making the engines environmentally friendly. But as diesel engines have become cleaner, the power levels have also increased. This is somewhat backward to what the country went through in the 1970s with gasoline engines.