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How To Tell If Your Truck Has A CP4 Fuel Pump

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 ...
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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 ...