Diesel Repair Blog for Trucks and RVs

Diesel fuel injectors are some of the hardest-working components inside a modern diesel engine. Their job sounds simple: Deliver fuel into the cylinder. But they have to do it with extremely precise timing, pressure, and spray pattern—over and over, thousands of times while the engine is running. When an injector starts to wear or fail, the engine may develop anything from a slightly rough idle to severe smoke, hard starting, loss of power, or fuel contamination in the engine