I have a 2004 Dodge Duelley with a 5.9 Ho in it.. the other day I stopped at a red light. When I pushed the petal to continue it would not get up to over 40mph. I stopped and turned the engine off a...
Just typed a big response and it wouldn't post....... If not the fuel pickup/junk in the tank, other 2 likely problems with 03-04 CR Cummins is lift pump if it's the original engine mounted one. Easy to diagnose with a pressure guage while driving. Another known issue is the APPS. Harder to diagnose if no engine light or didn't throw a code, but relatively easy repair if it's the case.