CP3 in Ram verses CP4 in Ford and GM
Is there someone that could possible explain the difference in the cp3 system that is in a Ram verses the cp4 system that is in a Ford? The high pressure Fuel Pump, is it just a brand difference or an...
Forum Discussion
FishOnOne wrote:Cummins12V98 wrote:
CP3 another good reason to own a RAM/Cummins.
Run some water or gas thru that CP3 pump and see what happens. If everyone recalls there was a member on this site that reported his CP3 HPFP in his GM truck failed do to water and had to replace the complete fuel system.
Fuel contamination is a serious issue for all common rail fuel systems.
May have happened, but it's not the norm when CP3's let go. On the other hand you can pretty much be assured if you have a CP4 failure the entire fuel system will be getting replaced.
