Keeping Your 5.9 CR Injectors Running Smooth

If you've started noticing a weird haze at idle, it might be time to look at your 5.9 cr injectors before things get expensive. Anyone who has owned a 2003 to 2007 Dodge Ram with the Cummins engine knows that these trucks are absolute workhorses. They're legendary for a reason. But, as much as we love that 5.9-liter power plant, the common rail fuel system is its sensitive spot. When those injectors start to go, they don't just affect your fuel economy; they can actually threaten the life of your entire engine. ...

May 12, 2026 · 6 min · Deakin Paladino