There have been a lot of questions surrounding the cause of diesel fuel injector malfunctions from truck owners. While there isn’t one answer, the majority of cases can be traced back to the increased pressure that manufacturers have applied to the tips of the fuel injectors.

This increased pressure allows for a better, more efficient fuel burn with more power, but the downside is that the higher pressure and higher temperatures create a burning effect on the engine oil, a damaging combination on the fuel injectors. A corrosive layer of oxidized oil deposits will form, clogging the injectors, first slowing them down and, if nothing is done, eventually stopping them altogether. Some indications of injectors misfiring are slow start-ups, rough idling, hesitation and lack of power.

When truck owners run into these problems, it’s time to invest in fixing or cleaning the injectors.