It's very common knowledge that engines rely on fluids to operate. While the various oils, water, and fuels are referred to as a powerplant's "life bloods," the latter liquid—diesel, for our ...

If you browse forums often, chances are you've come across some heated discussions around the CP4 fuel pump. The CP4, short for "Common Rail Pump 4," is a high-pressure fuel injection pump that made ...

Following a U.S. class-action lawsuit regarding a CP4 fuel pump defect in Fiat Chrysler and Cummins Dodge Ram Heavy Duty trucks, the automaker and its parent company Stellantis have now recalled ...