Federal Judge Certifies Seven State Classes in Multistate CP4 Fuel Pump Defect Class Action

DETROIT, April 3, 2023 /PRNewswire/ — On Friday, March 23rd, in a case involving defective CP4 high-pressure fuel injection pumps installed in 2010-2016 model year GM Duramax diesel vehicles, Judge Terrence G. Berg of the Eastern District of Michigan granted class certification to seven…