Ram temporarily returned to the Bosch CP3 high-pressure fuel pump in 2021 after widespread failures of the CP4.2 pump in 2019–2020 Cummins-powered HD trucks. The CP4.2’s tighter tolerances and higher ...
DETROIT--(BUSINESS WIRE)--Last week, Fiat Chrysler announced the recall of more than 220,000 heavy-duty turbodiesel trucks equipped with a defective Bosch CP4 fuel pump, and a related class-action ...