How to Replace Injectors on a 5.9 Cummins?
At some point in the life of a 5.9 Cummins engine, the fuel injectors become tired enough to spoil the engine’s rhythm. Swapping them out keeps power output healthy, nudges mileage back toward factory numbers, and curbs the risk of worse trouble down the line. Displaced vibration or lumpy idle often signals that the nozzles have lost their…